ok so ive had this prblem for about 3 months thinking it would go away. this is what happens. when i have the AC off the car runs fine . but when i have the AC on when i accelerate i get like a screetching noise/sound coming from under the hood.(dont know where). if i have it off then i turn it on while im already driving, it will screech for about 3 seconds at the most. has anyone had an issue like this before. please help me out. and sorry if i posted this in the wrong section didnt know where to put it.

oh yea and when it does the noise it kinda loses power until the noise stops.

You need to tighten your alternator belt. The sound will go away instantly. If that's not it, it's your AC belt. Try tightening it, if that doesn't work though just replace it.

One of the two will fix your problem through.. hopefully .

This post has been edited by CastrolCelica: Oct 23, 2009 - 3:34 PM

alright. thanks i will try that. i will give you feedback later =] thanxxxxxx

or change your belt and tighten it to spec. what is your idle rpm at btw? with the AC on/off.

its regular. idk right now. but it doesnt seem like its gonna die out on me. when i turn it on and the lights comibned after while it does feel like it but it wont

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i will check it when i get home.

you will loose hp when ac is one because its running another belt for the ac pump. its normal for it to be like that.

it idles just under 1k

Mine does too

so then im ok ? just have to tighten up the Alternator belt?

yes dont over tighten it.

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yea but i mean u feel the car jerk one the noise comes on. and then back to normal when it goes away.