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seriously need pro help on a/c. am stumped
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Posted by dave c [Email] (more from dave c) on Thu, 21 Jul 2005 20:37:59 Share Post by Email
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first off, I am a certified aircraft mech, so I am no dummy. However this is really pissing me off. Ac will run for a minute or two then cut out and not restart unless car is shut off then restarted. then same thing. so far have bypassed the overheat switch, low pressure switch, temp bulb on compressor, and that damn freeze switch. also installed spare snowflake switch, lh control unit, all a/c relays in box. did determine that voltage and ground for a/c relay is good coming out of lh control unit when it runs but something tells the lh control to cut off power and off the a/c goes. is there something else I am not seeing in schematic that would tell the lh control unit to cut ac off? Is the throttle position switch wired into the a/c circut like most us cars? is there a thermostat switch for a/c somewher e I am not seeing?
car does idle very low(unless a/c is actually running)also idles low right off the bat to the point it will stall when cold if i dont push gas a little. suspect that may be my bad o2 sensor(per the cel lite)
please help. am losing my mind over this one.

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