Question about 1995 Chevrolet K1500

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Started truck cold put defroster on heard belt sqeak

Then after awhile the belt broke and fell off. I checked the bearings on the alternator,tensioner, and they seemed fine, but then I was told that the air conditioning unit will come on when the defroster is on so is the clutch on the airconditioner gone? any suggestion

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  • hamlinjj May 11, 2010

    It might just have been an old, cold belt. Try putting on a new one before suspecting the A/C.


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Yes that s true there is a ac pump and when the clutch starts going bad it will run and all the sudden just freeze up and it will snap belts right off... you just have to goto the junk yard and get a ac pump there not very expensive ..

Posted on Dec 25, 2008

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Sqeaking sound when i start in the morning

have you tightend it enough so there is not a lot of play in it if so its probably one of the pully bearings or the alternator bearings going i would check these first hope this helps ivan ps check power steering fluid levels as well as when the resivior is empty they make a squicking noise

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When you start the engine . i cold hear a grinding noise coming from the engine. most likely from from the belt area.

Remove accessory belt and examine the water pump pulley. Turn it manually and if there's to much play it is possible that it is worn out. with the belt removed still, check idler pulley(s) and tension pulley. If bearings turn freely or a "dry" sound is hearded, chances are bearing pulley(s) are worn. Carlos C.

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When I start car it makes a loud sqeaking noise what is that?

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Jan 25, 2011 | 1990 Chevrolet Cavalier

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Sqeaking from the accessory belt drive. could be a bearing in one of the pulleys, the pump, the alt or the belt tension has weakened. It occurs off and on, usually just off idle but sometimes at idle. Is...

common cause is the belt gets worn and stretched, yes the tensioner is suppose to keep its tension but also the tensioner gets weak and all it takes is a couple slips of the belt to harden and you will get a squeal. Spray WD 40 on tensioner, idler pulleys, alternator behind pulley, not on belt or where belt rides on pulleys but at all bearing locations. Did squeal stop? If not replace belt. Usually a chevy water pump will leak, or grind not sqeak unless there is rusty non lubricated so called coolant in it which 1974 maybe but 2007 na im sure you didn't neglect this baby. You can also inspect the belt carefully, possibly buy a can of belt dressing and spray belt but do make sure you use a ratchet and check your belt tensioner for smooth non sticky tension pressure.

Jan 10, 2011 | 2007 Chevrolet Silverado 1500 2WD

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Van began overheating and power steering went out. Van also lost power, was barely able to get it to a parking lot.

Sounds like your serpentine belt either fell off or broke. Check all the pulleys to make sure they rotate. Wiggle the water-pump pulley to see if the bearings are bad. Check the tensioner to make sure it isn't frozen or worn out. If all those check out fine replace the belt and see what happens.

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2003 tahoe - started smelling something hot , heard loud noise, ac stopped working immediately - , any ideas where I should start to look , appreciate any/all feedback

Not sure how long this may happened to you, but check the serpentine belt to see if the compressor locked up and caused the belt to break. If the belt isn't broke, the bearings in the compressor may have come out causing the pulley to bust something inside the compressor. With it being a hot smell, It sounds like the compressor locked up.

Jul 10, 2010 | 2003 Chevrolet Tahoe

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I hear a sound like the fan belt sqeaking, I know there is only one belt and that belt is still on . first it made a sound like a tire was leaking air then i heard the sqeaking under the hood

belts can still sqeak even though they are still on, check the condition of the belt, is it craked?, glazed? spray some silicon spray on it while its running and see if it goes away. the belt driven accesories can also make noise, alternator, steering pump, water pump, idler, tensioner, a/c compressor. use a long screwdriver like a stethescope and see if one belt driven acessory makes more noise than the others, just be careful of moving parts.

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1 Answer

Skeaky serpentine belt

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,

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