My car started making an extremely loud high pitched squealing noise about 4 months ago. It seemed to happen every time I turned the ac on, but went away when I revd the engine up to about 5-6k rpm or turned the ac back off. Or if I left the ac on, it would go away after a minute and never come back. So I changed the ac belt and the problem went away, for about a week...

Ever since then it started doing the same thing every time. For some reason, about a week ago, the car will make that noise every 10 seconds and it will constantly squeal for about 10 seconds. The squealing doesn't stop until I turn off the car. Please help :/

 

Put some belt dressing on the belt, or couple of drop of tranny fluid works too, and check if you belts are loose.

 

Ok, thanks. Will do.

 

If it is a squealing sound, the belt needs to be re-tensioned.

If it is a grinding type noise, the bearing on either the A/C pump, or the other pulley associated with it is going bad. I think it is called the tensioner pulley, but I am not 100% sure as I yank A/C out of my Civics so my experience with that system is not the best.

 

Mine basically does the same thing except the sound goes away when i turn the a/c off. Mine seems like the a/c clutch gets stuck, the compressor is brand new and it still does this....any help???

 

I still haven't figured it out. I replaced the belt though, and it stopped for a couple days. But now its doing it again

 

It could be the alternator belt. Do you ever hear the squealing upon first starting the engine with the A/C off?

 

Hmm, I've never had that in mind. Ok ill check it and see. If its not the alternator belt, ill just take the ac belt off all together since its winter time anyway.

 

Not the alternator belt, so I decided to just pull the ac belt. No more squeaky.

 

So I looked at the belt that connects to my ac, its also connected to the alternator. What's the solution to get around this? I know I probably need a shorter belt, but is there one specifically designed for this purpose?

I have a d17A1 if that helps any. 02 civic dx