Question about 2002 Nissan Altima
When I turn the AC on at idle the drive belt vibrates and make a loud noise, only with the ac on and in drive (at an idle).
Drive belt isn't cracked and the belt tension isn't frozen and moves freely!! Stumped!!
OK, went through the exact same thing this week. Put on a new belt, checked for proper seating, etc, etc. and that wasn't it. Read all through this site and others and it comes down to one of two things, the tension pulley assembly or the compressor itself. Seeing as compressors ran about $300 or so and the pully assembly is less than $50 and takes about 45 min to an hour to replace, I did that first. And for me, that was it. Tip for replacing the pulley assembly? Have a wide variety of sockets (depth) and extensions.
Posted on Jun 28, 2009
It could also be the Alternator Pulley. Many articles on NissanHelp.com. You can replace just the pulley or the whole alternator. However most remanufactured alternators do not replace the pulley during servicing and you could end up with the same situation soon after alternator replacement.
Posted on Aug 11, 2010
I recently had this same problem and ended up having to replace the A/C compressor. My mechanic said that it had something to do with the compressor shaft. I completely at his mercy. I will have to say that after it was repaired, the noise stopped immediately. It was a very costly fix!
Posted on Oct 09, 2008
Could be the bearings on your Idler Pulley... Thoroughly check your pulleys. Replace both belts, Ribbed and AC belt if that doesn't work.. Good chance you'll need to take your pulley's apart clean them ( in brake fluid ) .. That'll do the trick.
Posted on Aug 29, 2008
I finally found
Posted on Sep 30, 2010
Your belt could be glazed. You should replace it.
Posted on Jul 12, 2008
my car has done the same thing. . I have replaced the tensioner and belt twice now and it will start it again within a couple weeks of replacement. Had it looked at again and there is nothing wrong with it! just an embarrassing noise. dont replace it, its a waste of money.
Posted on Aug 21, 2009
SOURCE: When I turn the AC
I had the same problem. It's the altnerator. The altnerator has a clutch on the pulley and and try's to lock up when it's under a load. But I had that fixed and no more problems. I had a guy rebuild mine and replace the pulley and didn't cost but $75
Posted on Sep 28, 2013
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