whining noise when A/C is turned on

[y2kformula]

Hey Guys...

There is a new problem with my car but I do not know what it is. Hopefully somebody can chime in with suggestions or maybe they have seen this before.

I have a 6spd 2000 Firebird Forumla with about 90K miles on it. The car runs fine but when I turn on the A/C(not including the settings where it just brings in outside air), I hear a higher pitch whining sound from under the hood. The moment I turn off the A/C, the sound goes away. This happens whether I'm at idle or driving at any speed, gear, RPM.

Any ideas?

Thanks!
Ben

[JoshieDoom]

My compressor did this right before it locked up and started chattering....
Do you still have your AIR Pump as well(emissions)

[y2kformula]

I'm not exactly sure what the AIR pump is but I havent not done anything under the hood except add a new lid and K&N filter.

[JoshieDoom]

The air pump is under the drivers side headlight. The AC compressor is under the passengers side headlight(in that area) See where it is comming from and report back

[y2kformula]

It sounds like its coming from where all the belts are. I used my digital camera and made a little avi of the sound with and without the AC turned on. The quality is not that great but you can hear the sound.

Thanks!

[JoshieDoom]

HAHAHAHA... wow.. yeah sounds familiar bro!! I cut my belt off.. mine does it too...

http://www.ls1.com/forums/showthread.php?t=94059

[y2kformula]

What do I need to replace and is it easy or is this something I should take to the shop? I'm strapped for cash these days and I prefer to do it myself if possible. Do you have any part numbers and I look up the pricing. Thanks man.

[JoshieDoom]

youll need a compressor and to recharge the system... thats all. post it up on the wanted forums. lots of people delete them

[y2kformula]

I see a bunch on the for sale.

If I dont replace it right away, the worst that can happen is my AC stops working right? Or can there be more damage by waiting?

[JoshieDoom]

Take the belt off till you get it fixed.. it could lock up and stall your engine.. or be lazy and cut it off..