QuestionHello, again!
I've always wanted a Volvo Wagon. :) Finally, at 33, I broke down and got one. It's got just over 100k miles on it but has been well cared for. But, to my problem (I actually have two and will submit two different questions). This is problem #2.
My air conditioner works occasionally.
After some research on the net, I decided to bypass the "superheat" switch and recharge the system.
Now, it blows cold enough for me but seems to stop now and then - almost like when the "superheat" switch was still installed - only now the pauses in the generation of cold air aren't as frequent as when the switch was present.
They also seem to occur only after the A/C has been on for a while (10 minutes+). Shutting the *whole car* off for about 5 minutes will let it start again - shutting off *only* the A/C for a bit doesn't seem to help at all.
Just to confirm, the "superheat" switch was the white connector running from the compressor to the car's wiring chassis. I've cut out that switch and joined those wires directly. The black wires, I've been told, are for a diode - something to protect the radio reception and aren't related to this problem.
I suspect maybe it kicks off due to low pressure but I don't want to overfill the system for fear of popping something. The gauge/valve setup I have shows the level of freon to now be acceptable with the car running, A/C on and compressor on.
Ideas?
TIA,
John in NH
Answerthe heat switch is located on the back of the compressor and can be bypassed.just join the wire in the white connector that goes to the cars chassis harness to the wire that goes to the clutch.if done right you can just disconnect the connectors and then reconnect the proper ones.because one will be male and the other female.the female will be the white connector one and the other male is to the compressor clustch.if you have it bypassed properly and it still does it then it may be the compressor clutch is shutting of when hot and will need to be replaced.
