Question about 1999 Chevrolet Blazer

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Skeaky serpentine belt

Replaced belt tensioner, replaced belt, at idol no sqeak, high RPM big sqeak

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Are you positive the squeek is coming form the belt area?

the squeek can be from several other places, fan clutches can cause a high speed squeek, take the fan off and see if that cures it, the water pump front bearing can also be the culprit but that is hard to figure out without swapping in a new water pump, and lastly look at the AC compressor clutch, see if the squeek changes when you turn on and off the AC

hope this helps,


Posted on Oct 13, 2008

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I have a 2004 saturn vue I changed the idol pulley because it was making that noise then changed the serpentine belt but the serpentine belt keeps on popping can u tell me why?


Belt jumping the pulley ribs?

Check for worn out crankshaft damper pulley

The big one on the bottom

Only reason a belt moves, is an alignment issue
Something wore or changed since the vehicle was made

If you changed an idler pulley because of a bad bearing & noise,
that may have been one problem

Any snapping or jumping, is loss of spring tension in the tensioner
pulley assy. Those are the ones that wear & I thought you were referring to

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What would cause my serpentine belt to not fit on my buick lesabre custom 2001


Those belts have a tensioner on them. IF the belt is too big then the tensioner might not be retracted. It might be missing. There are idler pulleys too. If you have high miles on the this car, the pulley or the tensioner might be worn. The tensioner also has to be pulled back to have the belt put on.

Dec 08, 2013 | 2001 Buick LeSabre

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I have a 96 Ford Taurus and when I turn the engine on, and while accelerating there's a squeaking sound.


Well,a drive belt needs to be replaced every 50,000 mi. or so,and a weak tensioner can allow slack which causes sqeak even if the belt is good.
The idler pulley on those is easy to replace also. If the tensioner isn't holding the drive belt very tighly,replace it and the belt.
Auto Zone will let you put down a deposit and borrow a tool to work the tensioner so the belt can be easily removed. don-ohio

Dec 18, 2012 | 1996 Ford Taurus

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Serpentine belt diagram for a 2003 Chevy unpalatable 4.3


Pop the hood of the car and locate the serpentine belt routing diagram. The diagram on the 2003 Chevrolet Impala is on top of the fan shroud. The diagram will be a picture of all of the accessory pulleys and how the serpentine belt is routed among the pulleys. This diagram will give you the exact direction for routing the new belt onto the pulleys. If you cannot find a serpentine belt routing diagram, take a notepad and pen and draw out the exact routing diagram of the old belt across the pulleys.

  • 2 Locate the serpentine belt tensioner. It is located below the alternator on the left front side of the engine. The tensioner on the 3.4 liter, 3.5 liter and the 3.9 liter engines will require a 3/8 ratchet to release the belt tensioner. The 3.8 liter engine will require a ratchet and a 15 mm socket for the belt tensioner. Rotate the belt tensioner clockwise to loosen and remove the belt from the belt tensioner pulley.
  • 3 Slide the old belt from the belt tensioner pulley. Remove the belt from the remaining pulleys and pull the belt from the engine compartment.
  • 4 Route the new belt across the crankshaft pulley first. The crankshaft pulley is the big pulley on the bottom of the engine in the center. Then route the serpentine belt across the remaining pulleys as directed by the serpentine belt routing diagram. Leave the belt tensioner pulley for last.
  • 5 Rotate the belt tensioner clockwise again to relieve the tension and slide the new belt across the top of the belt tensioner pulley. Release the belt tensioner and the belt will tighten up as the tensioner applies pressure to the belt. Make sure the new belt is properly seated in all the pulleys.
  • 6 Crank the engine and inspect the belt again to make sure that it stays seated in the pulleys.

  • Read more: How to Replace a Serpentine Belt on a 2003 Chevrolet Impala ' eHow.co.uk http://www.ehow.co.uk/how_6120665_replace-belt-2003-chevrolet-impala.html#ixzz1Yi6QLAjb

    Sep 21, 2011 | 2003 Chevrolet Impala

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    The serpentine belt was recently replaced at an automotive service center. Now the belt or pulley sqeaks at idle and gets louder under acceleration. What could be causing this?


    COULD BE BAD BELT OR THE TENSIONER IS BAD AND NOT HOLDING THE BELT TIGHT ENOUGH THEY SHOULD HAVE SEEN THAT WHEN THEY DID THE BELT I WOULD RETURN IT TO THEM AND HAVE THEM RECHECK IT

    Oct 16, 2010 | 2006 Ford Taurus

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    I can't stop the squeak on my 8.1l chevy 2500hd.


    There is a pulley out of alignment. Only 1/8th inch out will cause a serpentine to sqeak.

    Mar 01, 2010 | 2001 Chevrolet Silverado

    1 Answer

    I need to replace the idler pulley/tensioner and the belt


    When this idler wears out it makes a growling noise that changes with engine RPM. A Bad Idler Pulley May Wobble & Wear Out Your Serpentine Belt Prematurely. Get Rid Of That Horrible Noise & Change.

    Remove the serpentine belt by using a breakover bar, ratcher or serpentine belt removal tool with the correct size socket for the pulley mounting bolt. Rotate tensioner arm to release tension. Remove the bel. Using the proper size socket, remove the tensiones mounting bolt and remove tensioner.

    Before installing the new tensioner, make sure the mounting surface for the tensiones is clean and free rust or other obstructions. Find the locator pin hole and rotate the replacement tensiones until the locator pin and the hole line uo. Insert the pin into the hole. Reinstall the mounting bilt and torque down to tight fit.

    Rotate the tensioner arm to install the serpentine belt. Make sure the belt is correctly fitted to all pulley in the drive system. Start the engine to check for any problems. Extreme care should be taken when reinstalling the serpentine belt because some of the pulleys are located in remote positions ans it is very hard to see that belt is seated properly in all of the grooves. If the belt isn't seated properly, the belt can "ride out" of the grooves and the belt can be damaged.

    Also must review the ZJ Repair Manual Secc-7-Cooling-System for graphics references.

    Hope helped with this. Remember rated this help. Good luck.

    Nov 26, 2009 | 1996 Jeep Grand Cherokee

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    Changing serpentine belt 3.8 2007 pontiac grand


    • Make sure your new belt exactly matches the old belt demensions
    • Take a breaker bar or big rachet & release the tension on the automatic tensioner; very slowly
    • Loop the old belt around the pulleys & fan
    • Install new

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