Question about 2002 Mitsubishi Lancer

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2003 lancer I have a problem with a noise. when ac is on it makes a loud kind of rattling or squeeking noise. not evident when off. is this the ac compressor or belt. The ac works fine; therefore, not sure if the compressor is the culprit.

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  • Anonymous Mar 20, 2014

    squeeking noise on passengar side checked belt that is fine not sure what else it could be



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I am sure the issue is belt related noise, it must be inspected not just for the belt but the idlers and pulleys the belt runs on, they may have a worn bearings or other damage, if all looks good then and only then change the belt. I hope this info is helpful.
We get no compensation our time, if you feel that I helped please rate me.

Posted on Aug 07, 2008

  • yadayada
    yadayada Aug 17, 2008

    Did you isolate the noise??



I just had the problem fixed. It was the belts.

Posted on Aug 21, 2008


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2003 mitubishi lancer

I think the noise is most likely from the drive belt, the reason it makes noise with the AC on is that it takes 5 horsepower or more to run the AC compressor, this puts a heck of the load on the belt, as the belt ages it gets hard and polished, this causes slippage, and squeal, esp when a load is on the belt like the AC.

We technicians get no compensation for our time, if this info is helpful or fixes the issue please rate me, thanks

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