A/C Problem!!!!!

[Frostcb724]

Can anyone tell me why everytime I turn my air on my rpms drop just above zero? By the way this is with the car at a stop.

[customchord]

Maybe the clutch or bearings are shot on the ac compressor.

[H22Artman]

Maybe the clutch or bearings are shot on the ac compressor.

x2

its normal for the RPMs to drop a little bit, but never enough to almost stall the car.

[Leethal88]

yeah thats def not normal for it to drop that low

[xj1234]

It's normal for the RPM's to drop. Does the car shake or feel like it's struggling or going to stall? If it doesn't your tach might just be wrong which is pretty common with older clusters.

[Losiracer2]

if it drops that low, then something might be seized in the compressor when the clutch engages. When its not engaged it should be free to spin, but when it engages, the clutch turns the compressor, usually dropping the RPMs a little but nowhere near to 0.

[Frostcb724]

Yea it does start to shake about to the point where it is about to stall.

[Frostcb724]

thanks guys ill try changing the compressor and see if that works.

[C91BLX7]

IACV could be not working properly also.

[cvc7chris]

x2

its normal for the RPMs to drop a little bit, but never enough to almost stall the car.

x2..
mine drop about 100rpm, but never under 4-500rpm

[JoshM]

Yea it does start to shake about to the point where it is about to stall.

Mine does it too.
Also when I roll down the windows while applying the brakes at the same time.

[Frostcb724]

IACV could be not working properly also.

yea i saw a thread on here the other day on cleaning out the IACV and I did it helped a little without the a/c but it still does it.