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Re: 2001 Ponitac grand am. my air conditioner will not...
Low pressure switch is bad unplug jump across wires wit paper clip or such and see if it kicks in just test cant run that way replace switch /check relays
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Low freon will cause the compressor to short cycle, when the compressor runs the pressure in the low line is pulled down and the low pressure switch turns it off. Not running the pressure builds up and turns it back on. In the old days there was no low pressure switch, with no freon to carry the oil the compressor was destroyed.
A lot of times its just an O-rimg. The more then lilely put a dye into the freon line and are going with what they see. I would get a second opinion or buy a small black light and look for my self to verify that it is the compressor.
if the compressor is turnning it could be you have developed a leak,or it could be that the air door which separates the heat from the ac is stuck open.vacume problem.if the compressor is not turnning it could be your low on freon,or an electrical issue.like a fuse or relay.
did you open the hp swich located on the high pressure ac lin you have to open the hp swich w/a paperclip in the harnes to open the system to accept the freon your trying to put in open the circut then fill
I have a 2001 ford expedition. the a/c compressor cuts off and back on about every 30 seconds or so. When its on the air gets cold when it cuts back off the air starts warming up. Is this an indication that the freon is getting low?
that light goes on mostly likely cause you need freon. the compressor will not go on if there is no freon. buy a userfriendly can at autozone. put it in low pressure valve(blue) if it works but no cold enough air check under your hood for the proper pounds or ounces needed of freon. if it doesnt work its your compressor. GOOD LUCK! :)
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