| Are you able to read the fault codes? If so it would be interesting to know if you are getting a code 6 on PIN 8 - which is "AC compressor clutch blocked". The most common reason it is blocked is that it is unable to complete a test that the engine RPM and the compressor RPM are about the same. The main reasons it can not confirm they are the same is if the serpentive belt is slipping or if it is not getting one of the RPM signals. If it is not getting both signals it can't complete the test and the compressor is blocked and you get the code. If it's missing one of the signals it's probably the compressor RPM signal which comes off a sensor on the back of the compressor, which sometimes fails just because the wire is too short when the motor mounts sag a bit. There's also a high/low pressure switch behind the left headlight which you can bridge to make sure it's not the problem. I might start by giving it 12 volts off the fuse box just to make sure it works. If so you've got an electrical problem and not a problem in the compressor. |