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2003 impala making a squealing noise from the belt , pulley area. The belt is spinning half on , half out on the tensioner.

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Posted on Jan 02, 2017

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Remove the belt, and check each pulley for resistance, or play. Each pulley should turn with ease, and have little to no play. Replace any pulleys that are found to be faulty. Check for pulley alignment. If the Crankshaft Pulley or any other pulley has loosened up, or not aligned properly, the belt will come right off. This is usually due to a frozen or faulty Idler Pulley or Tensioner Pulley. If all else checks out, ensure that the ribs are properly installed on each pulley, and no ribs are hanging off of any pulleys.

Posted on Apr 10, 2011

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Why is my car making whining noise by belts and pully


One of the accessory bearings could be going out
(I.E.-alternator,water pump,etc)If the noise is near an idler or tensioner pulley,it could also have a bad bearing.The best thing to do is remove the serpentine belt or release the tensioner pulley so the belt is loose,then you can spin each accessory pulley by hand and listen for the noise.You'll also feel the pulley dragging while you spin it and it might have a ratchety feel to it(in other words,as you're rotating the pulley you'll feel it spin somewhat freely and then it will feel as if its catching on something) If the belt itself is bad,it usually makes a squealing or chirping sound.If your vehicle has a vbelt drive with multiple belts,check the pullies the same way as described above and make sure the belts are all tight.A loose belt normally causes a squealing noise rather than a whining noise.Check your power steering fluid level too because the pump will whine if it gets low on fluid.

Oct 11, 2015 | 2000 Ford Taurus

1 Answer

Fan belt squeaks, changed belt @ tension & idler pulleys still squeals


oh yah have your harmonic balancer cheched because you can change every thing but if the balan. gets out of wack it un alines everything

Dec 28, 2013 | 2003 Ford Ranger Regular Cab

1 Answer

Makes squealing noise


You need to check the belt that drives the alternator for proper operation. The belt may be old and worn, or a pulley may be not freewheeling, but seized or with a bad bearing. Possibly the tension on the belt is too loose from a worn out tensioner.

First, spray a little water on the belt with engine running and see if noise goes away, possibly a worn belt. Pull the belt off and check all pulleys. Spin them by hand and see if spins easy, no rough feeling or a catch when spun. Check alternator pulley, idler pulley, tensioner pulley, PS pump pulley and A/C compressor pulley-check them all for free wheeling. If good check the tension on the belt when installed. If unsure, have a mechanic check tension with a belt tension tool.
If belt is good and pulleys good, check alternator output with a voltmeter on the battery with engine running. If voltmeter is below 13.5 volts, the charging system is still not working properly. Have it checked out.

Sep 29, 2013 | 2000 Mitsubishi Galant

1 Answer

My pulleys n serpentine belt makes terrible squeking sound how do i stop it


Look closely at the belt routing for any pulley not perfectly in line, straight with all the other pulleys. Use a straightedge if you can. If it's an old belt and missing any ribbed areas on the underside, or severely cracked, it needs replacing. Old belts get glazed and cause squeal. Also make sure the tensioner pulley is keeping the belt within proper limits of tension. Should be an indficator on the tensioner pulley.
With belt off or slackened, check every pulley for noise, wobble, smooth spinning with no rough catches, anything unusual.
Good luck.

Nov 17, 2011 | 2001 Chevrolet Malibu

1 Answer

Serpentine belt pulley is making a loud noise, the one at the altenator.


If it is a squealing sound when you start up or water splashes in that area you need to adjust the tension or replace the belt. If the noise is actually coming from the pulley it may be the bearings on that alternator being bad.

Aug 11, 2011 | 2003 GMC Envoy

1 Answer

2003 impala was making squealing noise from serpentine pulley area, finally belt slipped off. Changed both Tensioner and belt, same problem as before, belt slipped off again, pulleys seem to turn alright,...


Remove the belt, and check each pulley for resistance, or play. Each pulley should turn with ease, and have little to no play. Replace any pulleys that are found to be faulty. Check for pulley alignment. If the Crankshaft Pulley or any other pulley has loosened up, or not aligned properly, the belt will come right off. This is usually due to a frozen or faulty Idler Pulley or Tensioner Pulley. If all else checks out, ensure that the ribs are properly installed on each pulley, and no ribs are hanging off of any pulleys.

Apr 10, 2011 | 2003 Chevrolet Impala

2 Answers

Need diagram for serpentine belt for chevy imo l s 2003


Click on the following free direct Link. It has the Serpentine Belt Diagram and Tensioner location for your 2003 Chevy Impala.

http://www.2carpros.com/car_repair_information/year/2003/make/chevrolet/model/impala/2003_chevrolet_impala_drive_belt_routing_diagram.htm

GENERAL/Standard Rules to Removal the Serpentine Belt with a Tensioner:
A. Find the Tensioner(s). (See Diagrams on Link)
B. Using a Serpentine Belt Tensioner Tool, Or Wrench OR Ratchet, Rotate/Move the Tensioner USING THE AVAILABLE NUT (on the Pulley or Arm Base) OR the OPENING (3/8ths or 1/2 inch square opening) rotating the Tensioner Pulley/Arm - moving it away from contact with the belt and towards the area where the belt is not in contact with the Tensioner Pulley. The Tensioner is spring loaded, and is hard to rotate/move.
C. Remove the loosened belt off one of the other more easily accessed Pulleys.
D. DO NOT quickly release the Tensioner, but gently allow the Tensioner to rest in its closed position.

Standard Rules for Installing the Serpentine Belt with Tensioners:
a. Pick a Pulley that is most easily accessed. This will usually be on top. This will be the last Pulley that the belt will go on.
b. Using the Diagram: Install the new Serpentine Belt on the remainder of the Pulleys....over, under, left right.
c. Using a Serpentine Belt Tensioner Tool or Wrench or Ratchet Tool: Rotate/Move the Tensioner Pulley/Arm "away" from Belt contact area on the Tensioner. This spring is pretty hard and with a new belt, it will be even harder to install. Rotate/Move this to as-close to the maximum allowed inorder to have enough slack in the belt to get it up and over the last pulley.
d. Using your other hand - Pull the Belt up and over the Last remaining Pulley.
e. Before releasing the pressure on the Tensioner, visually inspect the remainder Pulleys and the Belts' Positioning on them.


Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.Com!

Mar 30, 2010 | 2003 Chevrolet Impala

1 Answer

Squeal under hood 2000 Pontiac Grand Prix GT (3.8 L)


I would start with a belt. While removing it feel how much tension the tensioner has on it, on the 3800 egnine they have a stiff tensioner(sorry I don't have any specs for how much) After you get the belt off you can look at all of the pulleys and spin them to see if the bind or look for stuff stuck in the grooves on the pulleys.
It sounds to me like the belt is streched. I would not recommend one of those gator back belts, they seem to make more noise sooner than a good v notch belt. But thats just my opinion!

Oct 24, 2009 | 2000 Pontiac Grand Prix

1 Answer

I have a high picth squealing coming from my pulley area.


It sounds like you have a Bad Belt Tensioner. Replace that and your Belt should stop Hollerin at ya!

Jan 12, 2009 | 2003 Chevrolet Impala

2 Answers

Loud squealing noise


The noise is most likely the serpentine belt. Check it's condition and that of the belt tensioner. It sounds like the belt is slipping, causing the squealing noise u describe. As the belt warms up, it's getting a better 'grip' and the noise stops. Turning on the heat also turns on the a/c in newer cars, this added drag on the belt (one more component to turn, the a/c compressor) would explain why it happens when u turn on the heat. Is the belt original? If yes, it's time to change it, and check the belt tensioner to make sure it's doing it's job of keeping the belt snug on all the pulleys. Let me know how u make out.

Dec 13, 2008 | 2003 Nissan Pathfinder

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