Question about 2005 Nissan Altima

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2005 nissan ultima.hear a squeeling noise.its worse when ac is of

Heard grinding noice when ac on only and came to a stop.the belt was loose and i tightened it.now,i hear a squeeling noise even when ac is off and its worse when ac is on.can this kill the car?

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It sounds like your ac clutch is shot. Just take the belt right off if you can. if it's a big job, just cut it.

Posted on Jun 03, 2009

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Sounds like to tightened the belt to much... back off the tension on it a little bit, with the belt, you want it tight, but not to tight,,,, it should have about 1/4 flex in the belt when tightened... make a little loose and see if you still have the squeel... if you still do try going to a parts store, like pepboys, autozone etc. pick up some brake cleaner it will be in a canaster, and while the engine is running spray a little <spirts> on the pullys, and see if the squeel stops, if so then it could be a bad bearing in the part... see what makes it stop... the brake cleaner will dry quick and not ruin anything cause you do it in short bursts do not use wd40 or any oil type of stuff on it cause it will cause slippage...

Posted on Jun 03, 2009

  • mechanic0204 Jun 03, 2009

    sounds like to tightened the belt to much... back off the tension on it a little bit, with the belt, you want it tight, but not to tight,,,, it should have about 1/4 flex in the belt when tightened... make a little loose and see if you still have the squeel... if you still do try going to a parts store, like pepboys, autozone etc. pick up some brake cleaner it will be in a canaster, and while the engine is running spray a little on the pullys, and see if the squeel stops, if so then it could be a bad bearing in the part... see what makes it stop... the brake cleaner will dry quick and not ruin anything cause you do it in short bursts do not use wd40 or any oil type of stuff on it cause it will cause slippage...

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