Question about 2004 Chevrolet Silverado

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Noise in front end, Possible pully system

It almost sounded like something was being hit by fan, the serpentine belt looks good and was changed out 10.000 miles ago,

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 9 Answers

SOURCE: 2008 Silverado 10,000 miles. 2wd has squeak

it may be the fan belt. The belt may need tightend or need a new one.

Posted on Jun 21, 2008

  • 124 Answers

SOURCE: terrible front end noise

Have your tire shop check your wheel bearings because that is the noise you are describing.

Posted on Dec 27, 2008

emissionwiz
  • 75235 Answers

SOURCE: 2000 chevy silverado noise when let off brakes after stopping

not the springs in most cases just the bushings they ride in, also check for lack of lubrication of the leafs, they have nylon slide strips between the leafs, but they fall out and then the spring loads up on braking and then unwind and you fell a thunk when it does so, there is a special grease injection tool/tip for a grease gun that is used to get grease into the leaf segments that really helps, use a Teflon based grease to to this, it is blue in color and available at many up scale parts stores like NAPA and Carquest.

Posted on Apr 01, 2009

Dr-Custom
  • 216 Answers

SOURCE: tension pully is loose making the belt rattle

It sounds like you have a broken serpentine belt tensioner. The tensioner should always be tight, it is spring loaded and you would have had to release the tension on it to have put the new belt on.Depending on what engine that is in yours, this could be an easy fix or a hard fix. The tensioner on a 2.2L is made into a large plate bracket that is attached to the front on the engine and several other items have to come off to replace it.The tensioner on the 3.1L v6 is smaller and has one bolt that holds it on.Either one is available at the local auto parts store.

Hope this helps

Posted on Apr 20, 2009

  • 176 Answers

SOURCE: how do I release the belt tension pully to replace serpentine belt

You can run down to your local auto parts store and buy a serp belt tool. Or you can take a 3/8 drive ratchet, locate the 3/8 square hole in your tensioner and put the ratchet in the hole. For more leverage I put a deep socket over the ratchet handle and put a long 3/8 extention in the deep socket. This will provide ample leverage and will save buying more tools you do not need. Simply move the tensioner to the direction that takes pressure off of the belt.

Posted on May 24, 2009

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What could cause my ford taurus 03 to cause such a loud squeeling noise?


it maybe the synchroniser which is under the throttle body (and houses the cam sensor)and makes the same noise. use a rubber hose to pimpoint the location of the noise

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After changed a new water pump,timing belt,idler pully,tensioner for 2004 lexus ls 430, when start engine has a noise look like from pully


COULD BE A BAD BEARING IN THE IDLER PULLY OR THE TENSIONER ON THE TIMING BELT OR THE SERPENTINE BELT. IF ITS A SQUEEL IT MAY BE SOME COOLANT GOT ON THE SERPENTINE BELT. TRY TO WASH THE BELT WITH WATER AND LET DRY COMPLETELY. IF NOISE REMAINS RETURN TO THE SHOP THAT DID THE WORK.

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94 wrangler 4 cylinder makes a whining noise and wont turn over when you try to start it, the serpentine belt does not move, it cranked over a couple of times but it was making a grinding sound and i...


Sounds like something in the engine "froze" or stuck Unhook the battery and try turning the engine with a wrench/rachet both ways. Check the timing belt, if broken the pistons will come up and hit the valves then stop everything from turning. Is one of the pullies stuck? Take off the serpentine belt and check all pullies to see if they turn.

Jan 14, 2010 | 1994 Jeep Wrangler

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I have a 2001 dodge caravan, We have a noise coming from the alternator pully, I think or the tension pully, The noise is very loud and kinda sounds like a gragle.


there are a few things you can do to check this ,it sounds like a bearing from the alternator . it is behind the pully ,or the bearing on the tensioner .you can take the serpentine belt of the alternator by usint a pry bar or a ratchet on the belt tensioner .you can check both by spinning them when ther is no pressure on them the one that makes the same noise sound is the bad one ,there is a diagram on the front hood on how to remove and replace the serpiene belt

Nov 19, 2009 | 2001 Dodge Caravan

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I have a high pitched noise which appears to be coming from front right engine compartment (as you are looking at the engine) which sounds kind of like a belt that is squealing. It is intermittent. Just...


Could be several things. WHICH ENGINE?.. 4 cylinder (has three belts, power steering/water pump, alternator & A/C compressor, one tensioner pully A/C compressor), The V6 2.7 (has only one belt, 1 Idler pully and 1 tensioner pully), the V6 3.5 has two belts - A/C/alternator, and power steering - there are two tensioner pullys). Noises can be caused by the belt(s) themselves, pullys, bearings, pully bearings, water pump shaft bearings (or belts/pullys rubbing up against something). Let's not forget that there is also belt(s) behind the Timing Belt cover as well as pullys and bearings associated with the timing system. You could start by removing one accy drive belt at a time (alternator, water pump, compressor, power steering, etc) to see whether or not the noise goes away in each case. If after each case, you discover the noise is still there, it's probably behind the timing belt cover (idler/tensioner pully, water pump shaft bearing, crankshaft bearing, etc.). Good Luck

Jun 29, 2009 | 2004 Hyundai Santa Fe

1 Answer

How do you check the idler pully to stop squealing?


NO ADJUSTMENT IS PROVIDED FOR, THE BLET NOISE MAY BE DUE TO A DEFECTIVE IDLER

Jun 20, 2009 | 2003 Toyota Camry

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Continuous Chirping Noise In and around my serpentine belt.


sounds like a bearing in an idler or tensioner is going out.you need to take to any good mechanic and he can pinpoint the chirp.

Apr 29, 2009 | 1994 Plymouth Voyager

2 Answers

I HEAR A LOUD WHINNING NOISE FROM UNDER THE HOOD


Yes there is a bearing in the AC clutch assembly, and the bearing can be changed with out swapping out for a whole new AC compressor unit or even taking the unit out. 
The other thing to you may want to check is the Serpentine belt tensioner. The tensioner then to break apart and or when the clutch activate put's more pressure on the system and the idler pully bearing could alsy be the problem. 
Spray some water on the fan belt whale the engine is running and see if the noise goes away and comes back as the water dry's. If the noise goes away then it's just a worn belt and need to be changed or you may want to do the quick fix and buy Fan belt dressing. 
Good luck and hope this helps

Apr 09, 2009 | 2002 Chevrolet TrailBlazer

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V-6 engine noise


You could have a worn serpentine belt, and or bad idler pully bearing or a bad serpentine belt tensioner. With that anount of miles and years in the truck, it wouldn't hurt to change all. A good thing to check if it is the belt is to spray some water on the belt while the engine is running. If the noise goes away then it's your belt and while the belt is off, it's a good time to check the pully bearings.
Good luck and hope this helps.

Apr 09, 2009 | 2001 Ford Explorer Sport Trac

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