95 Cutlass compressor jump
That car has a pressure sensor, not a pressure switch. You cannot jumper the sensor. You need to supply +12V to the dark green wire at the compressor clutch if you want to force the compressor to run. If all you are doing is refilling the system, then try adding refrigerant with the compressor off to see if you can raise the system pressure enough to get the compressor to be turned on by the car instead of bypassing things.
Thread Starter
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Starting Member
Joined: Mar 2008
Posts: 112
From: WI.
Thanks for the info. "try adding refrigerant with the compressor off to see if you can raise the system pressure enough to get the compressor to be turned on by the car instead of bypassing things." Yea but how do I know how much is in the system now and how much to add. Takes 2lbs. even. Thanks.
Thread Starter
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Starting Member
Joined: Mar 2008
Posts: 112
From: WI.
Yea I need to evac yet. About two hrs. Then see if it holds @ 29.4. If not will have to run some dye through the system. Seems to have some pressure in the system yet. Don't know what it is at. I believe it needs to be 42 or so for the compressor to kick in.