I have a 2006 Pontiac Vibe with an AC Compressor that my be frozen. My car was sitting for 6 months not be used. Before the AC worked great. When i put the ac on a few days ago, my engine died. I turned the ac off and started the car up again, and no problem. I pressed AC button and car slowly died.
Does my ac pump need more oil, or a new ac compressor?
The thing is that the car only dies when I push the ac button. Could it be frozen so the belt won’t turn and the engine stalls. If so, does it just need oil and freon or a new compressor.
I have the stock 1.8 non GT version, manual trans.
Before turning the AC on step on the acceleator to increase the engine speed to 1,500 RPM. If the engine dies then there is likely something wrong with the AC. If the engine continues to run and cold air blows out the vents it’s a safe bet that @VDCdriver is correct.
And 1,500 RPM would likely be the 15 mark on the tachometer. It’s just a fast idle.
If the compressor is stalling the engine it would likely need a new compressor.
Not much AC experience, but I expect a mechanic could temporarily loosen the belt and tell if the compressor turns freely by hand or not Be aware that many cars activate the AC in defrost mode, so if your car stalls in defrost, that’s probably the same problem. I think the first thing you need to determine is if the AC compressor is turning freely or not. The next step is based on that.
I will check the IAC valve and try to take the belt off to see if the compressor spins freely. Does that depend on if the button is pressed and the AC clutch is engaged, or if it spins freely with the AC Cluch disengaged?
yes @db4690, two engines.
The one with an IAC valve has “VVTL-i” on the plastic engine cover.
That’s the Toyota/Yamaha 2zz-ge. The tach will show an 8400 rpm redline.
The other has “VVT-i” on the cover, Toyota 1zz-fe, 6300 rpm redline. That one is drive-by-wire.
Idle speed is controlled by the motorized throttle valve. No IAC.
The fact that RockAuto lists an IAC does not mean that ALL Vibes use it.