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Stupid newbie question???

playswithcars on Sat September 26, 2009 7:31 AM User is offline

Year: 1985
Make: Chev
Model: Monte Carlo SS
Engine Size: LT1 350
Country of Origin: United States

I'm an a/c virgin and like I said, have a stupid question. What would be the effect if the suction and discharge lines at the compressor were reversed? What kind of condition and damage to system would this create? This is a custom setup using the orig Monte R12 system and later 1996 LT1 engine and compressor using R134a instead of R12. I don't trust the guy that did the work. I looked at my pictures of the compressor setup in the orig car (1996 Trans Am), I am swear it looks like the lines he ran are reversed. He did have to use a adaptor on the back of the compressor to convert the line connections to threaded for the new custom lines.

The system does not work well. Within 5 seconds of compressor engagement the condenser starts to really get hot, both lines in and out. In 15-20 seconds, the drier and evaporator line starts to cool off but never get real cold. Air from the ducts is slightly cool but that's it. I'm afraid to run it anymore as the compressor just cycles on and off every 5-10 seconds. I believe it's low on charge?

Thanks again,


UPDATE: I finally had a chance to double check the lines and they are NOT reversed.

Edited: Sat September 26, 2009 at 8:51 AM by playswithcars

HVargas on Wed September 30, 2009 7:56 PM User is offlineView users profile

High and low side pressure readings would really help out.


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