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drive belts (ex. serpentine, v-belt)

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Top 10 Bad Car Symptoms You Should Never Ignore
Ignoring car problems costs more than fixing them right away. Never ignore if your car has rough shifting, a shaky steering wheel, or is smoking.
Symptoms of a Bad or Failing Drive Belt Tensioner
Common signs include grinding or squeaking noises coming from the belt, unusual belt wear, and belt-driven accessories like the alternator failing.
How Long Does a Drive Belt Tensioner Last?
In order to keep the proper tension on your vehicle's serpentine belt, a drive belt tensioner is used. This is a pulley that is either mounted to an adjustable pivot point...
How Belt Tensioners Work
The drive belt tensioner in your car is a small component that works in conjunction with the serpentine belt to ensure that everything in your engine works as it should. From time to time,...
How to Buy a Good Quality Drive Belt Tensioner
The drive belt – also known as a serpentine belt – keeps important components of your car’s accessory system running smoothly. The power steering, air conditioning, and sometimes even the water pump,...
Symptoms of a Bad or Failing Serpentine/Drive Belt
Common signs include a squealing noise from the front of the vehicle, power steering and AC not working, engine overheating, and cracks on the belt.
How Do Drive and Serpentine Belts Work?
The drive belt on your vehicle delivers power to the car’s engine, alternator, water pump, power steering pump, and air conditioner compressor. Usually, a car has one or two drive belts, and if there...
How Long Does a Serpentine/Drive Belt Last?
In order to operate, your car needs more than just a working engine and transmission. The “accessories” attached to the engine aren’t really optional. For instance, you need the alternator to...
How to Tighten a Drive Belt
If you have just replaced your drive belt and you are noticing high-pitched squeaking or squealing under the hood, or if you’ve noticed that your drive belt doesn’t seem to...
How to Replace Your Serpentine Belt
If your engine squeals in the morning when you first start it up, take a look at your serpentine belt under the hood. Any cracks, glazed areas, or...
How Long Does a Water Pump Pulley Last?
The pulleys and drive belts on a car help to ensure that everything is getting the power it needs. Without these components working properly, a car will usually not be able...
How to Adjust Drive Belts
Drive belts power electrical systems and other features in your car. An improperly adjusted drive belt can cause damage to your engine.
How to Check a Faulty Timing Belt Tensioner
The timing belt is a critical part of the automotive engine; if it breaks, it can cause some serious damage. The belt can break due to a number of...
Why Serpentine Belt Replacements on Cars With Limited Clearance Can Be Tricky
Changing a serpentine belt is a service that can involve performing some difficult maneuvers on the engine, especially on cars with limited clearance.
How to Check Belts in Your Car
Engine drive belts are a crucial part of how your car functions. Knowing how to identify any issues with them can help prevent a breakdown.
How to Quiet a Noisy Drive Belt
The drive belt operates different accessories mounted on the engine. The best way to minimize it's noise is to adjust the drive belt to specification.
How to Replace a Serpentine Belt
Replacing the serpentine belt can be challenging, as it involves removing the tensioner and determining the correct route to install the new belt.
Understanding All the Drive Belts in Your Car
Your car’s engine has a number of mechanical parts attached to it that perform essential functions like delivering power (the alternator), cooling your engine (the water pump), helping you to drive more easily...

Related questions

Question
What are my issues?
If you are unable to move the alternator pulley by hand it needs to be replaced. There has been a bearing/bushing failure, more than likely, and the only choices you have are to rebuild or to replace the alternator. On...
Question
Replaced alternator and all was well. One day went to start the car and it made weird noise then shuttered and died. The belt doesn't seem lose.
Check the drive belt and see if it has a glaze to it. If so, then the drive belt is stretched and needs replaced. A drive belt has a life span of about 25K miles. Having 40K miles on the...
Question
Why my drive belt keep shredding ?
Usually, by the time a Mercedes drive belt is ready to be replaced, the tensioner is shot too. If you haven't replaced the tensioner, than you should. If the pulley that was replaced was in fact tensioner, then you need...
Question
Serpentine Belt
It is recommended to replace the timing belt at 100k miles and the water pump and tensioner should be replaced at that time also. Do not confuse the timing belt from the accessory drive serpentine belt. The timing belt is...
Question
Car didn't start so I got a jump. When it started hearing squealing sound. 2007 Honda Accord
Hello - your symptoms suggest that the alternator is not functioning properly due to a worn or stretched serpentine (aka accessory) belt. This problem could also be caused by a failed serpentine belt tensioner, or failed bearings in the alternator...
Question
We have a 2013 toyota highlander 3.5L and the dealership said that we have to replace the drive belt but we only have 55,893miles.
Hello, thank you for writing in. The drive belt's life span will depend on the quality of the belt. While some are designed to last 20,000 miles, some will last much longer. It has a lot to do with how...
Question
Belt squeaks on start-up when cold or damp outside but squeak only last for few minutes
You should have the belt and tensioner checked to see if the belt is worn or stretched beyond its limit causing the tensioner to not keep it tight and allowing it to slip when damp or wet. Remove the belt...
Question
I have an issue with my car, any time I turn the wheel it makes a lot of noise 2007 Ford Escape
Hi there - it sounds like the serpentine belt (aka accessory belt) problem. The serpentine belt drives both the alternator and the power steering pump, so when you turn the steering wheel, the belt is loaded pretty hard. The belt...
Question
Can I bypass power steering pump pulley on 2009 G6 - 3.5L with shorter belt?
Depending on what type of engine you have in your vehicle will determine if the belt can be replaced with a smaller belt. If you have a 4 cylinder 2.2 Liter engine or a V6 3.0 to 3.9 Liter engine,...
Question
Is there anyway to bypass the ac compressor they make bypass pulleys but can't find any for an 88 Grand Prix
As long as the a/c clutch bearing is not seized, it doesn't matter if the a/c compressor is locked up. As long as you do not turn the a/c on, this causing the clutch to engage and attempt to run...
Question
I'm having a problem with my 2001 cavalier ever since my idler pulley went my car won't start at all.
Hello, thank you for writing in. If you did not properly route the belt on your pulleys then you may have these and similar issues. If there were issues getting the belt on, or if it was too easy, the...
Question
I have a 1999 chevy silverado 1500 ls v8 5.3 liter what is my amperage on my altinator?
If you still have the original alternator installed, look at the numbers on the alternator. If you see a "K68" label (or part number 321-2104) you have a 105 amp alternator. If you see a "KG8" designation (or part number...
Question
2000 vw cabrio. How do I put tension on the power steering pump belt? Thanks
Your vehicle may be equipped with an automatic tensioner. If so, it will be assembly that is spring loaded and pivots to maintain a constant specified pressure on the belt. If it is so equipped, there might be a problem...
Question
Squeaking in the belt area
One or more pulleys are out of plane and/or a pulley or idler bearing is faulty. If the origin of the noise is not really obvious (pinpointed) on the mechanic's initial inspection, a quick diagnostic can be performed by simply...
Question
2003 Sonata starts then will stall. I have to wait ten minutes then it starts right up?
Check the belt and see if its loose or too tight. A drive belt that is loose or too tight can cause the alternator to not function properly and make the battery get low on voltage causing a no start...
Question
My power steering just stopped working as o got stuck in the snow just now
It's possible that the front suspension and/or the steering rack sustained damage during this incident. The only other potential cause is a power steering pump failure and/or a failure of the drive belt. I recommend you request a power steering...
Question
I just got my serpentine belt replaced and it's squealing when I start the car and sometimes when I hit the gas
Noise of that type is due to a failed or failing bearing in one of the pulleys or accessories (e.g., alternator, water pump, A/C compressor) that is driven by the serpentine belt, the belt is not properly tensioned, or the...
Question
Hello, I just got a 2001 Montaro Sport and I went to get in tonight and it started squealing. What cold it be?
The noise could be the serpentine belt slipping due to age or the tensioner not holding the belt tight on the pulleys. Also an idler pulley could have a failed bearing causing the noise. Try removing the serpentine belt and...
Question
What is the correct procedure for tightening the belt tensioner on a 2001 Chevy Monte Carlo? We put the new belt on.
The belt tensioner on your vehicle should have an automatic tensioner, however, some models have the manual tensioner. Tighten the tensioner to where the belt is tight but loose in the middle length area as about the width of the...
Question
I got my serpentine belt replaced on my 2002 Q45 and now my car wont start. This never happened before. 2002 Infiniti Q45
Argh! These are scenarios that make most of us pull our hair out! Is the service event related to a failure? Or was the failure waiting to happen "the next day" anyway? It's unlikely something was bumped, jostled or damaged...

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