Question about 1995 Saturn Sl
When I turn on the air conditioner, the cooling fan doesn't come on (as it should) and the compressor doesn't come on with its usual loud click. Fuses and relays seem to be okay. The cooling fan motor was replaced last year. And here's the big clue -- I just had a new battery put in a few weeks ago. Before the new battery was installed, the a/c worked. Is there something the mechanic might have ''accidentally'' unplugged?
There are pressure sensors in the refrigerant plumbing that can prevent the system from starting if system pressure is low. If any of these are loose or unplugged the compressor will never engage. The compressor clutch also has a connector that can be unplugged also.
Posted on Jul 04, 2017
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Posted on Jan 02, 2017
Yes a relay or relays in the engine compartment. The fuse cover should tell you where they're at.
Posted on May 11, 2009
Is the air actually blowing into the car?But it's just hot?It sounds like your blower motor is not turning to blow air.you have a fuse,check the switch that controls the blower,and the blower motor it self.
Posted on Jul 27, 2009
OK, the requirement of Freon is 2 cans...as for the Cold/Hot problem, a little info first; the PCM controls the AC clutch (adjusts the IAC, Idle Air Control valve to speed up the idle when turning on the AC unit, and slows down the idle after turning off the AC unit), also the PCM controls the relay that cycles the AC clutch. My experience has been that the relay is "going South". This bad boy is in the fuse block in the engine compartment by the Air Filter box. The relay is an inexpensive item, and if you live where the AC unit is used frequently, I would recommend it being replaced every 3-5 years. Be sure to check with the mechanic to make sure he properly recharged the system, and if so, try these ideas.
Posted on Jan 23, 2010
You need to make sure the freon is correct,by having ac gauges put on the system,if the compressor is running the gauges will tell if there is a problem with the ac system itself,now,it can be the temp door actuator motor that is in the dash,if it is not moving the temp door open,it will need to be replaced.
Posted on May 27, 2010
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