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Could still just be low on refridgerant
Posted by KeithR (more from KeithR) on Thu, 25 Apr 2002 08:57:55
In Reply to: A/C not working - possible problems?, Rod M, Wed, 24 Apr 2002 21:23:57
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the manual specs 2.1 lbs of R-134A for a converted car, a 20 psi static reading sounds like a nearly empty system, though it should only take 30 psi to turn the low pressure switch on. What got me last year in my 88 was a bad connection on the hot wire to the A/C relay, pin 30. it burnt the relay contact and connector socket. (relay is in panel behind glove box) Also check fuse 20. This supplies the power to the relay for the compressor and aux cooling fan. Do you have a meter? check for continuity (closed switch) across pin 1 and 2 (book says green wires)of the pressure switch on the filter/drier.
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