Question about 2001 Chevrolet Tahoe

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The tensioner pulley keeps making a loud squeak when you put on the gas and then the pulley breaks.

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Either your belt is slipping or the bearing in the tensioner pulley is bad ,need repace it, slip the belt off and remove the pulley ,hope this helps,robert b.

Posted on Jun 28, 2009

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My car keep on breaks alternator belts and it also makes this loud whistling noise. I've put on a new water pump, 3 alternators and several alternator belts


make sure that the pulleys of all the driven equipment are in alignment and not at a bit of an angle to the axis of the drive belt
To break belts something is not lined up properly or something is not turning freely

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I have a 1998 crown victoria and I done replaced both pulleys and belt on it and it still squeaks real loud, even when i give it more gas ,what else could it be


A squeaking or squealing sound from a car's belt can often mean that the belt tensioning needs adjusting. Often this is done by adjusting the alternator. I don't know for your particular car, but I would check a service manual for that.

Nov 08, 2014 | Cars & Trucks

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Truck squeaks at start-up and goes away after 2 seconds...at times when I'm driving it will squeak and the voltage meter drops below 14 while squeaking. get off the gas and it stops and everything goes...


Your serpentine belt tensioner may be bad,not holding enough tensioner and not letting your alternator keep a charge on your battery,get some one to sit in your vehicle,open hood,have them start it while you watch the belts turn and have them rev the engine up to see if the belt turns loosely.another thing to look at is the A.C.compressor locking up .Power steering pump could be locking up,just check it out while it's running and see.

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My cutlass 98 makes loud squeaking noise when idle


Your belt tensioner is possibly bad which could cause it to slip at low rpm.

Mar 15, 2013 | Oldsmobile Cutlass Supreme Cars & Trucks

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fan belts squeak for several reasons 1 incorrect belt for pulley.2 belt running on the botton of the pulley and worn pulleys. To check measure across the top part of the pulley and the widest part (back) of the belt should be the same if not marginally bigger. V belts work best at t5he top of the pulley.If you can see that the pulley is polished at the bottom the belt is slipping and not driving Check if the pulley sides where the belt runs is not stepped from wear. Recheck the tension as new belts stretch slightly. If you have a multi groove pulley check the tension setting. As a last resort CRC make a product that is used to stop belt but it is best to fix the real fault first

Jan 21, 2013 | 2000 Mazda MPV

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WHAT PULLEY COULDE BE MAKING ALL THE NOISE IN MY ENGIN


Check the fan belt tension. If it still makes a squeaking noise then put graphite powder on the fan belt.

Dec 03, 2012 | Cars & Trucks

1 Answer

I replaced the altenator and the serpentine belt two weeks ago. Now i hear a squeaking noise. I tried a spray for the belt but the noise is still there.


Check your tensioner pulley -- if you do not have enough tension on the serpentine belt, it will slip on the pulleys and cause a squeaking noise (very loud and high pitched). if you push on the serpentine belt with your hand, it should not more more than about an inch -- if it does, you are low on tension. If it does not have any give at all, then you have too much tension, and one of your pulleys might not be turning properly, causing that same noise. If your tension is right, and your car is still making that noise ... and belt dressings (the spray you probably used) are not working to stop it, then it might be a piece of rubber stuck on one of the pulleys, but this usually will not make that sound ... just smoke and a burned rubber smell.

May 24, 2011 | 2005 Pontiac Grand Prix

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The belts continue to make a loud screeching noises when i drive over 55. Sometimes when the car is idling the belts make noise. Could it be the tension pulley.


it could be the tensioner, water pump, alternator, A/C compressor, power steering, or even a really bad serpentine belt. The only way to be sure is to remove the s-belt and spin-check the pulleys and listen for squeaks or grinding bearings.

Jan 13, 2011 | 1984 Buick LeSabre

1 Answer

2006 Toyota Corolla LE. Loud squeaking coming from serpentine belt area after I start the engine cold. Changed the belt recently but still noice persist. Loud squeaking goes away after driving for 3-5...


It is probably the tensioner pulley that's gone bad. It can be replaced separately, if you can purchase the pulley separately. As to how to go about changing it in such a small space, it's definitely possible, with the right type of tools. That's why mechanics have so many different shapes and lengths of the same size tools.

Jan 12, 2011 | 2006 Toyota Corolla

1 Answer

Loose belt


If it is the belt, you need to buy a special tool made to relieve the pressure from the belt tensioner, As you do that the belt will slip off. Don't let anybody tell you that you can use a ratchet and socket to loosen the tension. If your tensioner is not designed to work like that, it will strip the bolt out. While you have the belt off, turn all of the pulleys and make sure that they are not the cause of the squeaking sound. Make sure to memorize where your belt goes, a serpentine belt can be very confusing to put back on if you don't remember how it came off.

Jan 23, 2010 | 2007 Toyota Corolla

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