Showing articles & questions for topic
drive belts (ex. serpentine, v-belt)

Related articles

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
AC clutch making squealing noise
Of course, make sure the oil and refrigerant charge are correct. Too much of either will create an excessive load on the compressor. Also, check the operating pressures to see if they are within an acceptable range. Check belt alignment...
Question
Car will not start after belt came off
Hello. We need to gather some more information before we can diagnose the starting issue. Was the vehicle running fine before the belt popped off? Did the belt go back on as tight as it was before? When you turn...
Question
A/C V-belt keeps going bad within six months.
Hi there. Check the angle of the V-belt as its mounted on the air conditioner pump. For the belt to burn off or decay that fast, either the belt is too tight, too loose, or the pulley is offset from...
Question
When I turn the ac on it makes a very loud squeal that stops after a few minutes. 2007 Jeep Commander
Hi there - It's possible that the tensioner/idler pulley for the serpentine belt(https://www.yourmechanic.com/services/loud-squealing-or-rattling-is-coming-from-engine-inspection) by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and...
Question
Can you change the defected water pump without changing its defected belt (which is the drive belt and only belt in this model of
Hello. Yes you can replace the water pump without replacing the serpentine belt. If the belt is worn, and it breaks while you are driving, you can damage a lot of other components in that area. Typically the price of...
Question
Screeching serpentine belt when the a/c is on. Is this a problem with the serpentine belt?
Hi there. There is a problem with the alternator or a/c compressor clutch pulley. Check the pulleys out on each item and see which one is creating a heavy load or a skipping feeling as if the bearing is seizing...
Question
My serpentine belt & pulley fell off
Hello there, a variety of failures will cause your 2004 Ford Crown Victoria to have a drive belt and pulley fall off. The steering will become difficult when the drive belt comes off the engine as the power steering pump...
Question
Drive belt is squealing
This may be a matter of a belt tensioner out of adjustment. Your drive belt has a tensioner pulley that maintains a specific amount of tension on the belt in order to keep it tight, but allow it to flex...
Question
The belt
Hello. Start by locating a diagram of the belt and make sure you know which pulley is the tensioner. Also take a serious note of how the belt was routed on the different pulleys, because it must be put back...
Question
Engine ticking sounds, screech 2009 Ford F150
Hi there - while a screeching noise may be common, it is not "normal". An old belt, whether stretched or glazed, can cause screeching, a loose tensioner will allow belt slip (not good), worn idler bearings, crud in the grooves...
Question
Serpentine belt keeps coming off
The pulleys will not just lose their alignment. For this to happen, there has been a failure somewhere. One of the most common causes I have found for this problem, on a serpentine belt system, is that the belt tensioner...
Question
Serpentine belt snapped truck won't turn over
The belt most likely broke from a seized pulley. Turn each of the components and pulleys to see if one is binding, wobbles or does not turn without making noise. You will need to find the cause of the belt...
Question
My car makes a loud squealing sound when I start it, and sometimes and when I stop.
This is likely a squealing belt which is a common problem with engine drive belts. When you start the engine (especially when it is cold), the drive belts are instantly subjected to the strong torque of the motor turning them...
Question
4 hours to change serpentine and accessories belts?
As you may know, many mechanics and shops have varying labor rates that depend heavily on the skill set of the mechanics and the various costs associated with running that particular shop. I would recommend having an expert from YourMechanic...
Question
High pitch noise coming from the driverside
Hi there: In some cases, the wrong or incorrect tightness or alignment of the serpentine belt can cause this type of noise. Since you stated this noise began after this part was replaced, leads me to think that it's either...
Question
Car still runs, but it's overheating and the power steering went out
A possible scenario, based on your description, is a failing pulley bearing. This would account for the noise, and because the serpentine belt rides on the pulley and drives other accessories such as the power steering pump, the alternator, and,...
Question
crankshaft pulley harmonic dampener fell off after serpentine belt replacement
It could be that the condition of the pulley caused your belt failure in the first place. Deciding that depends on where the balancer separated.The balancer itself consists of a center hub with a pulley ring around it and a...
Question
my serpintine belt snaped, i noticed the power steering pulley was bent i re placed it but am not sure if the pulley should spin
If there is no drive belt on the pulley that is on the power steering pump, you should be able to turn the power steering pump pulley freely and easily by hand. If the pulley (shaft) does not turn, that...
Question
What do you think could be wrong?
Hi there: What you're describing appears to be a problem with the serpentine belt; which powers many of your vehicle's components including the alternator, power steering, and air conditioning systems. When the belt or the pulley's that turn the belt...
Question
Serpentine belt popped off engine while running
Hello there, many faults will cause the drive belt on your 2007 Dodge Durango to fall off. In many cases the belt comes off from either a seized pulley, or a pulley that is walking. If your harmonic balancer pulley...

Need a mechanic?

Our certified mobile mechanics make house calls in over 700 U.S. cities. Fast, free online quotes for your car repair.

Get a quote

Post a question and get free advice from our certified mechanics.


Ask a question