1996 A/C clutch not engaging - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 02-09-2010, 10:08 PM   #1
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Default 1996 A/C clutch not engaging

1996 SE A/C clutch is not engaging. I check the pressure and it was alittle low. I put in about 1/4 can and pressure was up to 40ish and did not help. I have checked the fuses and the relay and they are good. The system was working this past summer. I did have to add one can of coolant.

What is next for trouble shooting this problem?
I'm somewhat electrically impaired so please speak laymans terms.

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Old 02-09-2010, 10:11 PM   #2
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Where are you located?

The AC system does not work under 55 degrees.
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Old 02-09-2010, 10:22 PM   #3
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Fletcher NC 28732
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Old 02-09-2010, 10:31 PM   #4
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The clutch won't engage even on defrost?
Its was about 40 today but I was in the garage with the door
up some so was probably 50 -60 inside.
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Old 02-10-2010, 03:02 PM   #5
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Anybody ????
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Old 02-10-2010, 06:28 PM   #6
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Hard to tell what your AC system was reading for operating temp at that time.

I'll never hear mine work until spring.......

It may be 50-60 outside...but the actual temp sensor in the system may not allow the clutch to engage until it'* physically 55 degrees or higher.
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Old 02-10-2010, 06:38 PM   #7
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OK Thanks Todd
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Old 02-10-2010, 08:40 PM   #8
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The system consists of may items. If the pressure switch is bad, a clog in the system, bad compressor etc etc. it won't kick on. It'* tough to say why it won't at the moment, but like Todd mentions, it may be a little cold to come on.
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