2002 Dodge Durango A/c

2002 DODGE DURANGO
108,000 MILES
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COCOLO198807
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  • 1 POST
A/c compressor is brand new and it won't engage I was to to check to see if the a/c switch is actually working. How do u check to see if the a/c switch is working. Also when trying to fill with freon it took the oil but nothing else. It was completely vacuumed out before I started working on any of it
Jun 13, 2013 at 8:45 AM
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DOCHAGERTY
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The A/C switch is possibly a reference to a pressure switch usually located on the receiver/drier bottle, its function could be two things, a low pressure and a high pressure sensor, usually incorporated into one sensor with 4 electrical contacts. So if there is no pressure, then the clutch cannot be commanded on, and if is too high or the evaporator core reaches a set temperature, it disengages the compressor. If the system has oil in it and freon will not go in, check for proper charging, are you filling from cans or a 30lb canister? As soon as that switch sees pressure it should allow the compressor to engage and then fill with the proper amount of refrigerant.
Jun 13, 2013 at 9:25 AM
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