Dosmastr wrote: ↑
Wed Jun 30, 2021 5:29 am
When I turn on the AC, the cooling fans turn on immediately, the compressor does not.
The compressor turns by hand, not freely but not too too hard.
I was about to change the clutch because I could smell something burning when I looked after right she got home, then called a mechanic, he told me to check for leaks first.
I see dye inside the fitting for the low side, I hooked up a recharge kit, the low side is off the chart, 150psi.
Just for some kind of base I also hooked it up to My car and with engine off, it read like 125psi. So… Don’t know if both cars are overcharged or I got a bad gauge or what.
The manual I got on here says change the compressor...but it also seems to assume it's running but incorrectly... It's running at all.
Could it be just the clutch? I'll look for fuses today.
Cant find a non-Chinese clutch that's not 400bucks.
Is RYC decent? I don't see on rockauto but website looks domestic "since 1989"
Static pressure doesn't really tell you anything, but the fact that the fans turn on does. If the fans didn't spin then almost everything is fair game, but the spinning fans tell you the IPDM is trying to turn on the compressor. That means the BCM is getting the A/C signal, the ECM sees acceptable refrigerant pressure, and in a word, everything is okay except for the compressor failing to engage.
There is a fuse for the compressor, it's located in the IPDM (the funny fusebox-looking module sitting upside down underneath the intake tube). It isn't uncommon for clutches to fail short-circuit and pop the fuse repeatedly. It also isn't uncommon for them to fail open-circuit but pop the fuse once as they give up the ghost, or to fail open and never pop the fuse. Once you know the fuse is good, test the circuit by taking the connector loose at the compressor and putting a test light on it (bulb-type test lamp, not a meter). If the bulb lights brightly then your clutch is causing the issue. If it lights dimly or not at all then the problem is the wires or IPDM. The IPDM has a relay for the compressor, but that isn't serviceable. If the relay is shot then the IPDM has to be replaced.