Fan Belts- How to Quiet a Noisy Fan Belt

Published: 04th April 2011
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Almost everyone has had the unpleasant experience of listening to a fan belt squeal. It sounds kind of like nails being pulled down a blackboard. If you are unfortunate enough to have a vehicle that is making that racket, youíll be happy to know that this post is going to tell you how to quiet a noisy fan belt.

Is It Really Your Fan Belt Making That Noise?

The first thing you need to do is make sure that it really is your fan belt thatís responsible for the squealing. Itís easy to make that determination. Just start your vehicle. Did the noise start immediately? If so, your alternator belt is likely the culprit. If turning the steering wheel initiates the squeal, look to your power-steering belt.

However, if your vehicle is being noisy, put a small amount of brake fluid on your fan belt while the car is running. If youíre rewarded with silence, then you have found the source of the problem.

Low Tech Solution for Quieting Noisy Fan Belts

Youíre going to love this quick, low tech solution for ridding your car or truck of that awful squealing. The only tool you need is a bar of soap.

1. Turn off your vehicle.
2. Press down on the top of the fan belt. If it goes down an inch or more, it needs tightening or replacing. Follow the rest of the instructions for a quiet ride to your mechanic for that
3. Rub the bar of soap along the full inner surface and sides of the belt. Remember, your vehicle must be turned off before doing this
4. Once youíre done, turn the motor on so the soap can do its job and lubricate the belt and pulley
5. Enjoy your newly quieted ride

You do have an alternative solution to the soap method. Check out your automotive parts store for belt dressing. The product sprays on and you may find it easier to use.

Only a Temporary Solution

The soap method is just a temporary solution. Fan belts that need to replaced or tightened still need to be tended to properly but at least you can drive to the garage without wishing you had earplugs.

When You Should See a Professional

If, despite your efforts, there is a continuous noise or smoke coming from the pulleys or any other part of your vehicle, forget the soap and call your mechanic. There may be an issue with your bearings or some other big problem that needs addressing in order to prevent damage to your engine.

Peter Lynch is an auto expert providing trustworthy information on Automotive Parts. For more information about Fan Belt, Brake Pads or Brake Pad Set and many more Automotive Parts please check out

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