Underhood Articles and Info - GMB North America, Inc. https://gmb.net/blog/category/underhood/ Your Success Is Our Future Mon, 16 Mar 2026 13:25:39 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://gmb.net/wp-content/uploads/2021/08/cropped-gmb-logo-transp-bg-512x-v2-32x32.png Underhood Articles and Info - GMB North America, Inc. https://gmb.net/blog/category/underhood/ 32 32 The Importance Of Avoiding Timing Belt Failure https://gmb.net/blog/importance-of-avoiding-timing-belt-failure/ Mon, 12 Jan 2026 17:47:58 +0000 https://gmb.net/?p=43824 Preventative timing belt replacement is one of the toughest sells in the shop. The customer’s car is running fine. They can’t see the belt. And the “if it ain’t broke, don’t fix it” mentality is stronger than ever. They just see a big labor bill for a part that isn’t broken… yet. But the job of the…

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Preventative timing belt replacement is one of the toughest sells in the shop. The customer’s car is running fine. They can’t see the belt. And the “if it ain’t broke, don’t fix it” mentality is stronger than ever. They just see a big labor bill for a part that isn’t broken… yet.

But the job of the service advisor is to help the customer understand that they’re not just buying a belt; they’re avoiding disaster.

Modern Interference Engines

Many car owners don’t know the difference between an interference and a non-interference engine. 

Basically, interference engines are designed with the valves perfectly timed with the pistons. If the timing is off, they can collide. Interference engines are more common in modern vehicles.

In non-interference engine designs the pistons and valves won’t ever make contact with each other – no matter what happens with the timing belt. This design was more common in the past – when engines used lower compression ratios.

Back in the day, if a timing belt snapped on a non-interference engine, the customer got a tow and a new belt. No harm, no foul. Those days are over. The non-interference design was a luxury of low-compression engines. Today, in the hunt for more power, efficiency, and lower emissions, everything has changed. Higher compression, VVT, GDI… all these modern designs demand razor-thin tolerances.

Virtually every modern engine with a timing belt is an interference engine – meaning there is no ‘safe’ way for that belt to fail.

A Failed Timing Belt Is Catastrophic

It’s important that your customer know what a belt failure in an interference engine means. When that timing belt breaks, the camshafts stop instantly. But the rotating assembly – the crank and pistons – doesn’t, due to inertia.

In an interference engine, that means the pistons are going to smash into the valves that are stuck open. It’s a guaranteed, catastrophic failure. It’s not a simple fix; there will be bent valves, broken pistons, and a trashed cylinder head. The repair bill just went from a few hundred dollars for a maintenance job to thousands for a new engine.

This is the ‘why.’ A preventative replacement is the cheapest insurance policy they will ever buy.

Why A Timing Belt Kit Is Best

Once the customer understands the ‘why,’ make sure you’re doing the ‘how’ correctly. This is a time and labor-intensive job. This is why the timing belt kit is recommended – it’s the best way to do the repair correctly and guarantee it for the long haul. Replacing related components just makes sense:

  • The Water Pump: It’s driven by the timing belt. Its bearings and seal live the same hard life. Swapping it now is a no-brainer.
  • Tensioners and Idler Pulleys: These are often the actual cause of failure, more often than the belt itself. A seized idler or a weak tensioner is what shreds the belt. Replacing them is a must.

High-Quality Timing Belt Kits From GMB

Customer skepticism is understandable, but ultimately, a timing belt kit isn’t just a part; it’s a solution. Build trust and keep them on the road by using the best quality components when you do this service. GMB has been an industry-leading OE and Aftermarket automotive product manufacturer since 1943. Contact us today to order your high-quality GMB parts like water pumpstiming beltsfuel pumps and much more.

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What Causes Water Pump Failure? All You Need To Know https://gmb.net/blog/water-pump-failure-causes/ Wed, 08 Oct 2025 11:50:47 +0000 https://gmb.net/blog/water-pump-failure-causes/  A failing water pump can lead to catastrophic engine damage if ignored. As the heart of your vehicle’s cooling system, the water pump keeps your engine from overheating by circulating coolant through it. When it fails, your engine can overheat quickly, risking a cracked head, blown head gasket, or even complete engine failure. That’s why…

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 A failing water pump can lead to catastrophic engine damage if ignored. As the heart of your vehicle’s cooling system, the water pump keeps your engine from overheating by circulating coolant through it.

When it fails, your engine can overheat quickly, risking a cracked head, blown head gasket, or even complete engine failure. That’s why it’s so important to understand the causes of water pump failure and how to prevent them. We’ll cover this topic in detail here.

A Bad Seal

The seal between the water pump housing and the engine block is vital. It prevents coolant leaks and keeps excess air out of the cooling system. If the seal is improperly installed, the vehicle sits unused for too long, or the coolant becomes corrosive, it can fail.

While coolant leaks are bad, the presence of air is often worse. Air pockets can cause engine overheating and localized hot spots within the engine block. Excess air also encourages corrosion, reducing pump life and efficiency.

A Loose Drive Pulley

A vibrating or wobbling drive pulley can lead to pump failure by prematurely wearing out the pulley bearings. Over time, this causes a drop in pump efficiency and eventually complete failure.

A misaligned pulley may also cause the impeller to become imbalanced, further damaging the pump. To avoid this, always replace the pulley when replacing the water pump – many GMB water pumps come pre-installed with a high-quality drive pulley to prevent this issue.

A Bad Or Broken Belt

In belt-driven water pump systems, a worn, cracked, or slipping belt is a major red flag. If the belt is too loose, it can stop the water pump from functioning. If it’s too tight, it may cause bearing or pulley damage.

Regular inspection is essential. If a belt is over-tightened, it must be replaced, and the tensioner must be reset. A broken belt has the same effect as a broken pump: no coolant circulation, leading to immediate engine damage.

Worn Bearings

Bearings are key to keeping the water pump impeller spinning smoothly. If bearings wear out, the impeller may wobble or seize entirely. This not only damages the pump but can also affect the timing or accessory drive system.

GMB bearings are manufactured to OEM specifications or better, using high-strength materials and precision machining to deliver longer service life and smoother operation. They are built to handle real-world conditions and reduce the chances of premature failure.

Corrosion

Corrosion is a silent killer of water pumps. It typically results from poor coolant maintenance or using tap water instead of distilled water when mixing coolant.

Unfortunately, corrosion often isn’t noticed until it’s too late. By the time symptoms appear, like coolant leaks, reduced flow from corroded impellers, or seal failure, the pump will already need replacing.

Coolant Contamination

Coolant that’s contaminated with oil, rust, or debris will damage seals, wear out impellers, and reduce the efficiency of the entire cooling system. It may even clog narrow coolant passages in the engine or radiator.

Always flush the system thoroughly and refill it with fresh, properly mixed coolant — using distilled water, never tap water. Check the coolant quality after you have flushed it, as evidence of oil or rust particles may indicate a more srious issue with your engine.

Cavitation

Cavitation occurs when air bubbles form in the coolant and then collapse, damaging internal components of the pump. It’s often caused by poor coolant circulation, low coolant levels, or improper coolant mixtures.

Cavitation can destroy the impeller and pump housing over time, so it’s crucial to maintain coolant levels and always bleed air from the system during servicing.

Weak, Corroded, Or Damaged Impeller

The impeller is responsible for circulating coolant. If it’s corroded or broken, coolant flow is restricted or stopped altogether, leading to overheating. If your impeller is damaged, the water pump will need to be replaced.

GMB impellers are engineered for strength and long-term reliability. They’re made from high-quality, heavy-duty materials to resist wear, corrosion, and heat damage far better than cheaper alternatives.

How Much Does A Water Pump Cost?

The cost of a replacement water pump depends on your vehicle and the type of pump required. You can expect to pay less for a water pump alone (typically a couple hundred or less), and a bit more for a water pump kit that includes the timing belt and/or tensioners and bearings (typically a few hundred or more).

Additionally, low-quality aftermarket pumps will cost less up front, but will likely lead to hefty future expenses. High-quality OEM spec (or better) water pumps from GMB are always the best investment.

Can I Replace A Water Pump Myself?

If you’re handy with tools and have some experience, replacing a water pump yourself is possible, especially on older or simpler engines. However, vehicles with timing belt-driven pumps or tight engine bays can make this job difficult. If the water pump is located low in the engine bay, you may want to use jacks or a car lift to access it from below.

You’ll need the correct tools, a new pump, fresh coolant, gaskets or sealant, and possibly a new belt or tensioner. Check out our blog on the best tools every DIY mechanic should have before you decide to take on the job.

Where Should I Buy A Water Pump?

Your best option is to buy directly from a trusted manufacturer or retailer with a reputation for quality and support. GMB is one of the world’s largest automotive OEM and aftermarket parts manufacturers, offering:

  • OEM-grade components
  • Precision manufacturing
  • Competitive pricing
  • Expert support

We offer water pumps with and without timing belt kits, as well as tensioners and idler bearings.

How Can You Prevent Premature Water Pump Failure?

While water pumps can fail due to wear, many issues are preventable with proper maintenance. To avoid common water pump problems in cars, follow a regular maintenance schedule and always use OEM specification replacement parts.

  • Flush and refill coolant regularly
  • Inspect belts and pulleys
  • Use only high-quality coolant and distilled water
  • Don’t ignore small leaks or overheating symptoms

High-Quality Water Pumps From GMB

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Knowing what causes water pump failure helps to extend the life of the pump as well as the engine, and avoid costly repairs. Remember to periodically drain and flush the coolant in the cooling system, and keep up with all recommended maintenance schedules.

GMB has been an industry leading manufacturer of OE and aftermarket automotive products for decades. If you suspect an issue with your water pump or need a quality replacement, check out our catalog or contact our team for expert advice!

 

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How To Pick The Right Water Pump for Your Vehicle https://gmb.net/blog/how-to-pick-the-right-water-pump/ Tue, 23 Sep 2025 13:01:50 +0000 https://gmb.net/?p=43735 When it comes to keeping the engine cool, the water pump is the key component in the cooling system. It circulates coolant through the engine to prevent overheating and helps maintain consistent performance, no matter how demanding the driving conditions. Choosing the best water pump isn’t just about fit; it’s about quality, reliability, and long-term value. If…

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When it comes to keeping the engine cool, the water pump is the key component in the cooling system. It circulates coolant through the engine to prevent overheating and helps maintain consistent performance, no matter how demanding the driving conditions. Choosing the best water pump isn’t just about fit; it’s about quality, reliability, and long-term value.

If you’re in the business of buying parts for fleets, stocking your auto parts store, or managing repairs in an independent shop, this vehicle water pump guide breaks down what to look for – and why GMB Water Pumps should be at the top of your list.

Why Water Pump Quality Matters

Cheap pumps will cost more in the long run.

Low-quality water pumps can leak, fail prematurely, or cause overheating. A failed water pump can even ruin an engine if not addressed quickly. Using high quality water pumps from the start saves time, labor, and protects your customer’s investment. When evaluating an aftermarket water pump selection, long-term reliability should be a top priority.

What Makes GMB Water Pumps Stand Out?

GMB water pumps are designed for durability and OE-grade performance.

GMB water pumps are engineered for precision and reliability. Decades of manufacturing experience go into every design. Here’s what makes GMB stand out in the world of OEM water pump replacement parts:

  • Factory-Installed Bearings and Seals
    GMB pre-installs bearings and seals in-house. This ensures proper fit and function and reduces the chance of leaks or early failures.
  • OE Form, Fit, and Function
    GMB pumps are engineered to match OEM specifications – no modifications or guesswork needed during installation.
  • Precision Machined Housings
    Every housing is CNC-machined for exact tolerances, ensuring smooth operation and maximum coolant flow.
  • Premium Grade Seals
    Carbon ceramic mechanical seals are used for better temperature resistance and longer life.
  • High Flow Impellers
    Designed to provide efficient coolant circulation and improved engine cooling—even under tough conditions.
  • Built-in Quality Control
    Each pump undergoes rigorous inspection and testing before it leaves the facility.

A Constantly Expanding Range

GMB offers continually expanding coverage for popular makes and models.

GMB has recently added new water pump applications for several major vehicle brands. Our lineup now includes more water pumps for Ford, Hyundai, Kia, and Lincoln, covering models such as:

These new SKUs enhance our catalog, making it easier to serve your customers with reliable coverage.

How to Choose the Right Pump for Your Application

When evaluating water pump replacement options, the following will ensure the right fit and performance:

  • Match OEM Specs
    Always compare the original pump’s design – bolt pattern, shape, and pulley size – with the replacement.
  • Look for High-Quality Seals & Bearings
    Inferior components wear quickly. GMB uses premium carbon ceramic seals and robust bearings for lasting performance.
  • Buy from Trusted Sources
    Stick with reputable brands like GMB to avoid installation issues and enjoy consistent product quality.
  • Stay Updated
    Vehicle coverage changes often. Bookmark our GMB Water Pump Blog to stay up to date on all the water pump-related resources we offer.

Quality Water Pumps From GMB

Choosing the right pump protects the engine – and your reputation.

When it comes to cooling system parts, lower-cost options often lead to more comebacks and costly repairs. With GMB’s lineup of high-quality water pumps, you get durability, precision, and peace of mind. Whether you’re comparing options or guiding customers through an auto parts water pump buying decision, choosing a trusted brand can make all the difference.

Check out our handy water pump troubleshooting guide to diagnose problems, and if you suspect an issue with your water pump or need a quality replacement, shop our catalog or contact our team for expert advice!

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Why is There Oil in the Coolant? https://gmb.net/blog/oil-in-the-coolant/ Thu, 24 Jul 2025 14:28:30 +0000 https://gmb.net/blog/oil-in-the-coolant/ This article was originally published on UnderHoodService.com. When you check the coolant in your and the fluid looks brownish or milky, it’s likely that the coolant is contaminated with engine oil, signaling potential cooling system issues. The Main Symptom Of Oil In The Coolant The most common visual symptom of a leak that has been going…

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This article was originally published on UnderHoodService.com.

When you check the coolant in your and the fluid looks brownish or milky, it’s likely that the coolant is contaminated with engine oil, signaling potential cooling system issues.

The Main Symptom Of Oil In The Coolant

The most common visual symptom of a leak that has been going on for a while is a brown milky sludge in the coolant, a telltale sign of oil in coolant problems. In the early stages of a leak, there may just be an oily sheen on top of the coolant. If the owner has missed these symptoms, the car may have overheated, exacerbating automotive cooling system failure.

If the coolant is contaminated with oil, it will need to be flushed and replaced – it’s the only sure way to achieve coolant contamination repair. The root cause of the problem will also have to be repaired to prevent further cooling system issues. Here are the most common causes of oil in coolant:

A Blown Head Gasket

“If the head gasket is bad, several repairs may need to be done.”

When a head gasket fails, oil can leak into the cooling passages and then end up in the coolant. Among other blown head gasket symptoms, this results in the brown sludge that can be seen in the top of the radiator and the coolant reservoir. Oil with coolant in it can also leak into the combustion chamber. This will result in a white cloud of sweet-smelling exhaust, a key indicator of a blown head gasket repair need.

A blown head gasket can be verified with a compression test, a standard step in engine and cooling system diagnostics. If the head gasket is bad, several repairs may need to be done. Blown head gasket repair steps:

  • The head gasket, of course, will need to be replaced to fix head gasket failure.
  • The entire cooling system will need to be flushed to resolve coolant contamination repair.
  • The radiator and water pump should be inspected for leaks or damage, both at the time of repair and going forward as part of the regular automotive cooling system maintenance. (Cold oil is thicker than water. Pushing cold oil through the radiator and water pump may damage them.)

A Failing Oil Cooler

“If the oil cooler leaks, the engine will still perform normally, making it critical to diagnose diesel engine problems accurately.”

Oil coolers are not very common in gasoline engine vehicles, but turbocharged engines usually have them. If the oil cooler leaks, the main symptom is oil in the coolant, a common engine oil cooler failure sign. This can cause many people to think that the head gasket is blown. However, a blown head gasket usually affects the engine’s performance, unlike an engine oil cooler leak. If the oil cooler leaks, the engine will still perform normally, making it critical to diagnose diesel engine problems accurately.

Fortunately for the customer, an engine oil cooler replacement is a much less expensive repair than a blown head gasket repair. The oil cooler and its gasket will need to be replaced, and the cooling system will need to be flushed and refilled to complete the engine oil cooler leak fix.

A Leaking Transmission Cooler

Many cars with an automatic transmission have a cooler for the transmission fluid. Often, the transmission cooler is part of the radiator. Cracks can develop between the radiator and the cooler that allow transmission fluid to get mixed into the coolant, causing transmission cooler leak issues. This causes the coolant to be pink and foamy looking, a distinct symptom of transmission fluid in coolant.

The bad news is that the coolant can make its way to the transmission. This can damage the transmission to the point where it needs to be replaced, requiring a costly transmission cooler leak fix.

High-Quality Cooling System Parts From GMB

GMB is an industry-leading manufacturer of OE and aftermarket automotive products since 1943. With decades of experience producing high-quality automotive fuel pumps and cooling system components, we have OE specification replacement parts for many makes and models. Check out our full range of OE-quality parts for cooling system repair:

If you suspect an issue with your cooling system or water pump and need a quality replacement, check out our catalog or contact our tea

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Automotive Engine Belt FAQs https://gmb.net/blog/types-of-belts-in-an-engine/ Thu, 03 Jul 2025 10:21:04 +0000 https://gmb.net/blog/types-of-belts-in-an-engine/ Engine belts are simple but important components in modern vehicles. Each car engine belt plays a key role in powering specific auxiliary components. Whether you’re managing a shop or maintaining a fleet, understanding the different types of automotive belts helps you make more informed replacement decisions and avoid costly breakdowns. Types of Car Engine Belts…

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Engine belts are simple but important components in modern vehicles. Each car engine belt plays a key role in powering specific auxiliary components. Whether you’re managing a shop or maintaining a fleet, understanding the different types of automotive belts helps you make more informed replacement decisions and avoid costly breakdowns.

Types of Car Engine Belts

Your vehicle may have one or more belts, depending on its age and engine design. The most common engine belts include:

1. Timing Belt

A timing belt is a toothed belt located behind the timing cover. It runs on camshaft and crankshaft sprockets. Its job is to keep the camshaft perfectly synchronized with the crankshaft so that engine valves open and close at the right time.

Modern engines often use timing chains, but many vehicles still rely on a timing belt, which typically needs replacement around 90,000 to 110,000 miles. We always recommend replacing the water pump at the same time -since both parts have similar lifespans.

You can shop our OE-quality Timing Belt and Water Pump Kits for complete solutions. Read more about the benefits of replacing timing belts and water pumps at the same time here.

2. Fan Belt

In some engine layouts, the fan belt powers key cooling system components like the water pump, radiator fan, and even the A/C compressor. If the fan belt fails, the engine will overheat – leading to serious damage.

While newer vehicles tend to use serpentine belts for this function, older engines may still rely on a separate fan belt. Regardless of the layout of your vehicle, regular car belt maintenance checks can help prevent breakdowns.

3. Alternator Belt

A separate alternator belt keeps the battery charged when a serpentine belt isn’t used. Depending on the engine’s design, this drive belt may also power the power steering pump. If the alternator belt fails, the battery won’t recharge while the engine is running, which may result in a flat battery and a stranded vehicle.

4. Serpentine Belt

The modern serpentine belt – also known as a drive belt or accessory belt – is a long, ribbed belt that powers multiple engine components with a single loop. This can include the:

  • Alternator
  • Power steering pump
  • Air conditioning compressor
  • Water pump

The serpentine belt runs off the crankshaft. Most last 60,000 to 100,000 miles. If fraying or cracking is seen, the belt should be replaced. Knowing the signs of a bad serpentine belt is key to preventing on-road failures.

How Engine Belts Have Changed Over Time

Automotive belts have evolved to be more efficient, durable, and capable:

  • Serpentine belts replaced multiple old-school V-belts
  • Materials have improved, increasing lifespan
  • Belt designs changed from narrow V shapes to wide and ribbed
  • Timing belts and tensioners are now engineered for quieter and smoother performance

What Are The Different Types Of Belts Used In Car Engines?

The most common engine belts include:

  • Timing Belt – syncs the crankshaft and camshaft
  • Serpentine Belt – powers accessories like A/C, alternator, power steering
  • Fan Belt – runs cooling components in older vehicles
  • Alternator Belt – charges the battery if a serpentine belt does not drive the alternator

How Do I Know If One Of My Car’s Belts Needs Replacement?

Watch for these symptoms:

  • Squealing noise, especially at startup
  • Visible cracks, fraying, or glazing on the belt
  • Warning lights on the dash (battery light, overheating)
  • Abnormal accessory performance (weak A/C, dim headlights)

Learn more about understanding timing belt failure here.

How Often Should My Car’s Belts Be Inspected Or Replaced?

Most shops recommend:

  • Inspecting belts every 10,000 to 15,000 miles
  • Replacing serpentine belts every 60,000 to 100,000 miles
  • Performing timing belt replacement around 90,000 miles

Always check your owner’s manual and follow manufacturer-specific guidelines.

What Happens If A Belt Breaks While Driving?

If a serpentine belt or fan belt fails, engine accessories will shut down, potentially causing the engine to overheat or the battery to die. A broken timing belt can lead to catastrophic engine damage in interference engines.

Learn more about what happens if a serpentine belt breaks here.

Are Timing Chains Better Or More Reliable Than Timing Belts?

Timing chains generally last longer and require less maintenance, but they’re heavier, noisier, and more expensive to replace if they fail. Timing belts are quieter and cheaper but must be replaced at regular intervals.

Are There Any Warning Sounds That Indicate A Belt Issue In My Car?

Yes. Most belts will exhibit several symptoms before complete failure, so listen out for:

  • High-pitched squealing noises
  • Grinding or slapping sounds from the engine bay
    These could signal a loose belt, misaligned pulley, or worn belt tensioner.

How Much Do Belts Cost?

Prices vary by belt type and the make and model of the vehicle, however, the prices below are a rough indicator of what the various automotive belts cost:

  • Serpentine belts: Typically $50-$100
  • Timing belts: Alone, typically $50-$100, kits with a water pump can be a few hundred.
  • Fan/alternator belts: Usually under $75

Contact us directly for more information on quality engine belt replacements from GMB.

Can I Replace Belts Myself?

Yes, fan belts, and alternator belts are often DIY-friendly with the right tools. Just be sure to follow torque specs and routing diagrams.

Timing belt replacement, however, is complex and usually requires special tools. Improper installation can cause major engine damage, so we recommend professional assistance unless you have the right equipment and mechanical knowledge for the job. For more information on timing belt replacement, click here.

Where Should I Buy Belts?

For mechanics, shop owners, and fleet managers, GMB is your trusted source for premium-quality automotive belts. We offer:

  • OE-spec parts engineered for durability
  • Complete timing belt and water pump kits
  • High-quality serpentine belts, drive belts, and more

GMB is an industry-leading manufacturer of OE and Aftermarket automotive products since 1943. With decades of experience producing high-quality automotive engine belts, we have OE specification replacement parts for many vehicles. Check out our full range of OE-quality parts:

If you suspect an issue with your timing belt or need a quality replacement, check out our catalog or contact our team for expert advice!

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Timing Belt Kits: Why Replacing Every Component Matters for Long-Term Savings https://gmb.net/blog/timing-belt-kits-replacing-every-component-matters/ Thu, 12 Jun 2025 17:26:18 +0000 https://gmb.net/?p=42975 Timing belt kits include more than just the belt itself – ensuring you replace all components together is key to avoiding costly repairs down the road. Doing it right the first time can save you time, money, and headaches. What Other Components Should You Always Replace When Doing A Timing Belt? When replacing a timing…

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Timing belt kits include more than just the belt itself – ensuring you replace all components together is key to avoiding costly repairs down the road. Doing it right the first time can save you time, money, and headaches.

What Other Components Should You Always Replace When Doing A Timing Belt?

When replacing a timing belt, you should also replace:

  • Tensioner – Maintains the proper tension on the belt. A failing tensioner can cause slack, even on a brand-new belt, leading to belt slip or failure.
  • Idler Pulleys – These guide the belt and ensure smooth operation. Worn pulleys can cause premature wear on a new belt.
  • Water Pump (if driven by the timing belt) – In many vehicles, the water pump is powered by the timing belt. When it eventually fails, you’ll have to tear everything apart again, doubling labor costs.

Replacing the full kit – belt, pulleys, and tensioner – ensures longevity and prevents premature failure of new components. Replacing your water pump along with the timing belt is good practice, and GMB offers a kit that includes a water pump as well.

What Are The Benefits Of Replacing The Timing Belt?

Replacing a timing belt on time prevents catastrophic engine damage. If a belt snaps in an interference engine, the pistons can crash into the valves, leading to costly repairs or a total engine replacement. And if you’re wondering, most modern engines are interference engines. Other benefits include:

  • Improved engine reliability
  • Smoother operation
  • Prevents sudden breakdowns
  • Saves money in the long run by avoiding major repairs

How Do You Prolong The Life Of A Timing Belt?

To extend the lifespan of your timing belt:

  • Replace the tensioner and pulleys to prevent undue stress on the belt.
  • Check for oil leaks – oil contamination weakens the belt material.
  • Avoid excessive engine revving, which strains the belt.

Is Timing Belt Replacement Really Necessary?

Yes. Timing belts are made of reinforced rubber, which deteriorates over time. Ignoring replacement can lead to complete engine failure. If your vehicle has an interference engine, a snapped belt can cause thousands of dollars in damage. Even in non-interference engines, a broken belt means a dead car and an expensive tow. Read more on the high cost of putting off timing belt replacement here.

Does Changing The Timing Belt Improve Performance?

A new timing belt won’t add horsepower but will restore lost efficiency. A worn belt can stretch under load slightly, affecting engine timing and fuel economy. A fresh belt and pulley ensures:

  • Proper engine timing for optimal combustion
  • Consistent power delivery
  • Reduced risk of engine misfires

How Much Does A Timing Belt Cost?

The cost of a timing belt varies based on the vehicle and whether you buy an individual belt or a complete kit. Timing belts are typically under $100, while a timing belt kit (belt, tensioner, idler pulleys) can cost several hundred. Budget for a few hundred more if you need a water pump as well.

Labor costs can vary widely, sometimes into the thousands. They vary based on whether a dealer or independent garage does the work, as well as the complexity of the job. The time required varies by vehicle. A small 4-cylinder engine with easy engine bay access can take as little as 2 hours. Larger and more complex engines can require up to 10 hours of labor. On certain vehicles, accessing the timing belt may require the engine to be partially or entirely removed.

Can I Replace A Timing Belt Myself?

Timing belt replacement is a complex job requiring some level of mechanical ability. If you’re an experienced DIYer with the right tools, you might attempt it, but for most people, professional installation is recommended. Mistakes can lead to serious engine damage.

If you do want to tackle it yourself, be sure to buy a complete timing belt kit from GMB to ensure you have everything needed for a proper replacement. Read here to find out more on how to stop a new timing belt from squeaking.

Where Should I Buy A Timing Belt?

For guaranteed quality and long-lasting performance, buy from a trusted supplier like GMB that offers OE-quality replacement parts. Our timing belt kits include premium components designed to work together for maximum durability and reliability. Unlike generic brands, our kits meet or exceed OEM standards, ensuring a perfect fit and long service life.

Why Should The Timing Belt And Idler Pulley/Tensioner Be Replaced Together?

Each of these components wears at the same rate. A new belt on worn pulleys or a failing tensioner can cause premature failure. Common issues include:

  • Excess tension causing belt stretch or breakage
  • Loose tension leading to skipped timing and engine misfires
  • Worn pulleys creating uneven wear on the belt
  • Premature belt failure due to uneven tension
  • Sudden tensioner failure, which can lead to major engine damage

Replacing everything together saves labor costs and ensures a longer-lasting repair. For peace of mind, always replace the entire timing belt kit.

What Are The Signs That I Need To Replace My Timing Belt?

Watch for these warning signs:

  • Ticking noise from the engine – A worn belt can make a ticking sound as it deteriorates.
  • Engine misfires – A stretching belt throws off engine timing.
  • Oil leaks – Leaks from the timing cover area can weaken the belt.
  • Check engine light – A faulty belt or tensioner can trigger engine error codes.
  • High mileage – If you’re near or past the recommended interval, don’t wait, get the belt, pulley and tensioner replaced.

For a deep dive into the symptoms of timing belt tensioner failure, read here.

How Often Should I Replace My Timing Belt?

Most manufacturers recommend replacement between 60,000 and 100,000 miles, or every 5 to 7 years. Always check your vehicle’s owner’s manual for specific intervals. If you’re unsure, it’s better to replace it sooner rather than risk engine damage. If you have purchased a used vehicle and are unsure of when its timing belt was replaced, it is best to get it done straight away.

If you are a parts supplier, distributor or shop owner, read here about how to educate your customers on timing belt tensioner replacement.

Choose GMB For Your OEM-Quality Timing Belts

Timing belt replacement is an essential part of vehicle maintenance. Skipping or delaying it can lead to severe engine damage and costly repairs. To ensure long-term reliability, always replace the belt, tensioner, and pulleys together. In vehicles where the water pump runs off the timing belt, this component should be replaced, too.

If you suspect an issue with your timing belt or need a quality replacement, check out our catalog or contact our team for expert advice!

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Water Pump FAQs: What Every Driver Should Know In 2025 https://gmb.net/blog/water-pump-faqs/ Thu, 03 Apr 2025 18:00:37 +0000 https://gmb.net/?p=41648 The water pump may not be the flashiest component in your vehicle, but it plays a crucial role in keeping your engine running. In this FAQ guide, we’ll cover everything you need to know about modern water pumps, from signs of failure to maintenance tips. What Is The Difference Between Mechanical And Electric Water Pumps?…

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The water pump may not be the flashiest component in your vehicle, but it plays a crucial role in keeping your engine running. In this FAQ guide, we’ll cover everything you need to know about modern water pumps, from signs of failure to maintenance tips.

What Is The Difference Between Mechanical And Electric Water Pumps?

  • The engine powers mechanical water pumps via a belt or chain
  • Electric water pumps get power from the vehicle’s battery

Mechanical water pumps are driven by the engine’s accessory belt or timing belt/chain, meaning they rely on the engine for operation. Their flow rate varies based on the engine speed, so they may not circulate coolant as efficiently in all conditions.

Electric water pumps are powered by an electric motor and operate independently of engine speed. This means they can maintain a consistent flow of coolant, improving cooling efficiency and economy. They are increasingly used in modern vehicles where precise temperature management is required. EVs in particular, require electric water pumps to cool their batteries, motors, and inverters, ensuring efficiency and preventing overheating.

Read more about water pump types and potential issues here.

Are Electric Or Mechanical Water Pumps Better? 

Mechanical water pumps generally last a long time but require replacement when the bearings or seals wear out. They may also need a belt change at the same time. Electric water pumps are more complex as they incorporate an electric motor and electronics to control the motor. They may fail due to electronic component issues. They tend to cost more, so replacement costs can be higher. Both should last for many years, but either may fail early.

Find out more about electric water pumps in EVs here.

What Are The Signs That My Water Pump Needs To Be Replaced? 

  • Coolant leaks
  • High water temperatures
  • Overheating engine
  • Grinding or whining noises from the engine bay

Common signs of a failing water pump include coolant leaks near the front of the vehicle, overheating engine, whining or grinding noises from the pump, and steam coming from the radiator. If you notice any of these symptoms, it’s essential to have your water pump checked immediately.

Learn more here about common water pump problems on a range of vehicles.

How Often Should A Water Pump Be Replaced? 

Water pumps typically last between 60,000 to 100,000 miles, but their lifespan can vary depending on the vehicle and maintenance history. If you suspect that your water pump is failing, don’t wait until it causes serious engine damage, get it replaced immediately.

Find out more on water pump replacement here.

Can I Drive My Car With A Bad Water Pump? 

Driving with a bad water pump is not a good idea. A failing water pump can lead to engine overheating, which can cause severe damage to engine components, including the head gasket and cylinder head. If you suspect a problem, it’s best to stop driving and get the pump replaced as soon as possible. 

Read more about why it is important to change a water pump before it fails here.

Should I Replace The Timing Belt When Replacing The Water Pump?

Yes, if your vehicle has a timing belt-driven water pump, it is generally recommended to replace both at the same time. Since the labor for replacing either component is extensive, doing both simultaneously can save time and money.

We cover this topic in more detail here.

How Long Does It Take To Replace A Water Pump?

The time required to replace a water pump varies by vehicle make and model. On average, it can take anywhere from 2 to 6 hours. If the water pump is along with the timing belt, the process may take longer due to additional components needing removal.

How Much Does A Water Pump Cost? 

The cost of a water pump varies depending on the vehicle. The part itself can range from $50 to $300, while labor costs can add $200 to $500 or more. The total cost typically falls between $300 and $800, depending on complexity and location. Check out our range of water pumps and electric water pumps here, and contact our expert team for more information.

Can I Replace A Water Pump Myself? 

You can replace a water pump if you have automotive repair experience and the necessary tools. However, since it involves draining coolant, removing belts, and possibly dealing with timing components, it can be a challenging job. If you’re not comfortable with this type of repair, it’s best to leave it to a qualified mechanic.

Check out some tips on water pump and timing belt replacement here, and some common mistakes that even pros make here

Where Should I Buy A Water Pump?

Water pumps can be purchased from auto parts stores, dealerships, and online retailers. But not all suppliers offer high-quality parts compatible with your vehicle. OEM (Original Equipment Manufacturer) parts are generally recommended for the best fit and longevity, which is why GMB only sells the highest-quality OE and aftermarket parts. GMB water pumps: 

  • Match OE coolant flow rate and pressure
  • Are tested for durability, leakage and dimensional accuracy
  • Are built from high-quality materials
  • Use carbon and ceramic sealing surfaces for superior wear resistance 

Trust GMB With Your Automotive Essentials

GMB has been an industry-leading manufacturer of OE and Aftermarket automotive products since 1943. We have locations on the east and west US coasts, in California and New Jersey.

If you suspect an issue with your water pump or need a quality replacement, check out our catalog or contact our team for expert advice!

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All You Need To Know About Car Batteries https://gmb.net/blog/all-you-need-to-know-about-car-batteries/ Thu, 19 Dec 2024 16:04:00 +0000 https://gmb.net/?p=41537 Car batteries are essential for powering your vehicle and running accessories like lights, the radio, and air conditioning. Understanding how they work and when they need attention can help extend their lifespan and avoid issues. Here’s everything you need to know about car batteries, explained in simple terms, including those most often asked of auto…

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Car batteries are essential for powering your vehicle and running accessories like lights, the radio, and air conditioning. Understanding how they work and when they need attention can help extend their lifespan and avoid issues.

Here’s everything you need to know about car batteries, explained in simple terms, including those most often asked of auto repair professionals.

What Is The Average Lifespan Of A Car Battery?

A typical car battery lasts between 3 to 5 years. However, factors like extreme temperatures, driving habits, and maintenance can affect how long it lasts. If you often make short trips or drive in very hot or cold weather, your battery may wear out faster.

How Do I Know If My Car Battery Needs To Be Replaced?

Common signs your battery needs to be replaced include:

  • The engine is slow to crank
  • Electrical issues (dim lights, malfunctioning radio)
  • Clicking sound when turning the key
  • Battery warning light on the dashboard

If you notice these symptoms, it’s time to test or replace your battery.

Can I Replace My Car Battery Myself?

Yes, you can replace a car battery yourself if you’re familiar with basic car maintenance. However, it’s important to follow these steps:

  • Turn off the engine and wear gloves
  • Disconnect the negative terminal first, then the positive
  • Remove the old battery and insert the new one, connecting the terminals in reverse order

Still, many prefer to have a mechanic handle battery replacement to avoid any potential electrical issues or accidents and to avoid the chore of disposal.

What Type Of Battery Is Best For My Car?

The best battery type depends on your vehicle and driving needs:

  • Lead-acid batteries: Most common and affordable; good for average use.
  • AGM (Absorbent Glass Mat): Offers better performance and lifespan, ideal for high-tech vehicles.
  • Lithium-ion batteries: Lighter and long-lasting, but more expensive. Typically used in electric or hybrid vehicles.

Check your vehicle manual or consult a professional for the best fit.

How Do I Properly Maintain My Car Battery?

To get the most out of your car battery:

  • Keep terminals clean and free of corrosion.
  • Avoid short trips that prevent the battery from fully charging.
  • Ensure the battery is securely mounted to avoid vibrations.
  • Test your battery regularly, especially before winter or long trips.

Regular maintenance can help extend the life of your battery and avoid unexpected failure.

What Does The Battery Warning Light Mean?

The battery warning light on your dashboard indicates a problem with the charging system. It doesn’t always mean the battery is dead. It could be an issue with the alternator, voltage regulator, or even the battery cables. When this light appears, have your car checked by a mechanic as soon as possible.

Why Does My Car Battery Keep Dying?

Frequent battery failure can happen due to several reasons:

  • Leaving lights or electronics on while the engine is off
  • A bad alternator or a charging system issue
  • Extreme temperatures
  • Short trips that don’t allow the battery to recharge fully

If your battery keeps dying, you may need to test it or check for a deeper issue.

How Can I Jump-Start A Car Battery?

To jump-start a dead battery:

  1. Use jumper cables to connect the dead battery to a working one.
  2. Attach the red clamp to the positive terminal on each battery.
  3. Attach the black clamp to the negative terminal of the good battery, then to an unpainted metal surface of the dead car.
  4. Start the car with the good battery and let it run for a few minutes.
  5. Try starting the car with the dead battery.

Be cautious and follow the instructions carefully to avoid accidents.

How Does Cold Weather Affect Car Batteries?

Cold weather slows down the chemical reactions inside your car battery, reducing its ability to hold a charge. That’s why your car might struggle to start on cold mornings. If you live in a cold climate, consider a high-quality AGM battery for better cold-weather performance, and make sure your battery is fully charged before winter.

How Do I Dispose Of An Old Car Battery?

Car batteries contain harmful chemicals like lead and acid which is why they should not be thrown in the trash. Instead, take them to a recycling center, auto parts store, or mechanic. Many places will recycle them for free and may even give you credit for your next purchase.

How Much Does A Car Battery Cost?

Car battery prices can range from $50 to a few hundred dollars, depending on the type, brand, and vehicle requirements. AGM and lithium-ion batteries tend to cost more than standard lead-acid batteries.

Where Should I Buy A Car Battery?

GMB is the best place to buy car batteries. Like all of our parts, our high-quality batteries are designed and tested to perform in the toughest conditions.

As a leading manufacturer of OE and aftermarket products since 1943, we have the right products for your customer or fleet needs. Our convenient locations in the US and across Asia and Europe offer friendly service and fast shipping.

Contact us if you have questions or to learn more about our products!

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GMB Oil Filters Vs. Economy Oil Filters https://gmb.net/blog/gmb-vs-economy-oil-filters/ Tue, 29 Oct 2024 13:49:51 +0000 https://gmb.net/?p=41494 Oil filters are consumable items that should be changed at every oil service. Choosing an economy oil filter may seem like a good idea, but it may cost you far more. Whether you own a truck, van, or sportscar, a high-quality oil filter is just as important as the oil you use. Quality Matters Economy…

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Oil filters are consumable items that should be changed at every oil service. Choosing an economy oil filter may seem like a good idea, but it may cost you far more.

Whether you own a truck, van, or sportscar, a high-quality oil filter is just as important as the oil you use.

Quality Matters

Economy oil filters are manufactured down to a price point. This means that they are made from cheaper materials and rarely meet any industry standards.

GMB oil filters are designed to meet the latest OEM standards. Every one of our filters undergoes stringent ISO 4548-12 testing procedures.

Our multi-pass performance testing is designed to simulate real-world conditions. It is the only way to ensure the best filter performance in any driving situation.

All GMB oil filters use high-quality cellulose paper. This delivers a superb 97.8% filtration efficiency. They also have up to 12 grams of dirt capacity, helping protect your engine between oil changes.

Many economy filters may look outwardly similar to high-quality GMB oil filters. But, the difference is in the design, material quality and interior components. Unfortunately, the inferior materials used in economy filters may only become apparent once the damage is done.

Economy filters often don’t use OEM-quality materials, resulting in poor filtration, which can cause oil contamination. If the filter capacity is too low or the filter gets blocked, it can lead to engine damage.

Design Differences

GMB oil filters have been constructed to deliver consistent oil flow and retain some oil when the engine isn’t running. This eliminates leaks, extends engine life, and reduces wear when starting from cold.

This is thanks to carefully designed relief and anti-drain-back valves. Some economy filters may claim to have the same features. But, they rarely work as efficiently, and using poor-quality materials limits their effectiveness and service life.

Our oil filters are highly compatible with all types of engine oil. This allows for excellent oil filtration levels for a wide range of vehicles.

How Much Do GMB Oil Filters Cost?

GMB offers a wide range of oil filters that are compatible with several makes and models of vehicles. The average pricing of oil filters can range from $10 to $15. Contact GMB to get the latest pricing on your desired oil filter.

Can I Replace An Oil Filter Myself?

Most modern, high-quality oil filters are easy to replace. Certain designs may require an oil filter wrench, while others can be loosened by hand. When changing oil filters often, a well-designed part that is easy to fit and remove makes all the difference.

GMB offers spin-on and cartridge-type filters. Both have easy-to-remove gaskets for leak-free operation.

We have been an industry-leading manufacturer of OE and Aftermarket automotive products since 1943. With locations on both east and west US coasts, California and New Jersey. Get in touch with us and order your high-quality GMB oil filter today.

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Why Most Consumers Have Their Car Battery Replaced By A Shop https://gmb.net/blog/why-consumers-have-battery-replaced-by-shop/ Thu, 10 Oct 2024 13:43:02 +0000 https://gmb.net/?p=41491 When your car’s battery dies, you’ve got two options: replace it yourself or let a professional handle it at a shop. While it might seem like an easy DIY job, there are several factors to consider that make professional installation the better choice for most drivers. Let’s explore the key differences between doing it yourself…

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When your car’s battery dies, you’ve got two options: replace it yourself or let a professional handle it at a shop. While it might seem like an easy DIY job, there are several factors to consider that make professional installation the better choice for most drivers. Let’s explore the key differences between doing it yourself and having a shop take care of your battery replacement.

The Hassle Of Battery Disposal

One big concern that people often overlook when replacing a battery on their own is battery disposal. Car batteries contain hazardous materials like lead and acid, which can harm the environment if not disposed of correctly. When you get your battery replaced at a shop, they’ll handle disposal for you. They know the right way to recycle old batteries safely, which saves you the trouble of finding a proper disposal site and ensures you’re staying environmentally friendly.

DIY Battery Disposal Issues:

  • Requires locating proper recycling facilities
  • Risk of improper disposal harming the environment

Shop Battery Replacement Benefits:

  • Proper and safe disposal included
  • No need to transport or handle hazardous waste

Electrical System Sensitivity And Safety Concerns

Car batteries may seem like simple components, but replacing them can be more dangerous than it appears. If you’re not careful, you risk electrical shocks or damage to your vehicle’s sensitive electrical system. Modern vehicles are packed with electronics that can be disrupted if the battery isn’t replaced correctly. At a shop, experienced technicians know how to avoid issues like short circuits or incorrect connections that could damage your car or injure you.

DIY Electrical Risks:

  • Shock hazard to the body
  • Damage to sensitive electronics

Shop Safety Benefits:

  • Professionals handle all connections safely
  • Knowledge of proper battery installation procedures

Resetting Your Car’s Computer System

A key issue many people don’t realize is that when a car battery is replaced, many of the vehicle’s computer systems may need to be reset. This can include things like the clock, radio presets, or even more complex systems like engine control modules and security systems. Resetting these features can be a hassle for the average car owner. Shops, on the other hand, usually have a power supply that they can connect to the car while changing the battery. This prevents your presets from being deleted, making sure your car is running smoothly as soon as you drive away.

DIY Resetting Hassles:

  • Clock and radio need manual resetting
  • Potential issues with security or engine control systems

Shop Installation Perks:

  • Quick and professional resets of all computerized systems
  • Ensures vehicle is ready to go with no hiccups

Free Installation And Convenience

Perhaps one of the best reasons to let a shop replace your battery is the convenience. Most places offer free battery installation when you buy a battery from them. This saves you from having to purchase tools or spend time installing the battery yourself. Additionally, professional installation can often be done in a matter of minutes, while DIY replacements could take much longer if you run into unexpected issues.

DIY Time and Tool Costs:

  • Need to purchase tools for the job
  • Time-consuming if problems arise

Shop Convenience:

  • Free installation with battery purchase at many shops
  • Quick, hassle-free process

When it comes to replacing your car’s battery, letting a professional shop handle it is often the safest, most convenient option. Not only will they dispose of the old battery properly, but they’ll also protect your vehicle’s sensitive electrical systems, reset your car’s computers, and save you time with a free installation.

Check Out GMB For High-Quality Batteries

At GMB, our high-quality batteries are tested for durability and designed to perform in the toughest conditions. We’ve been an industry leading manufacturer of OE and aftermarket products since 1943, and have the right products for your customers or fleet needs.

With locations on both the east and west US coasts, and global locations in Asia and Europe, we also provide convenient fast shipping.

Contact us if you have questions or to learn more about our products!

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