'90 XJ - AC clutch not engaging
07-04-2014, 11:20 AM
#1
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Location: North Carolina
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Year: 1990
Model: Cherokee
Engine: 4.0L
'90 XJ - AC clutch not engaging
My 1990 XJ's air conditioning quit working. It appears my AC clutch is not engaging the compressor.
I checked the low pressure switch - Okay
I checked the relay - Okay
I ran power directly to the clutch - Engaged
So... where do I go from here?
How do I test the AC control unit to see if it is working correctly and telling the relay to engage the clutch?
What else am I missing that I need to test?
Any advise would be greatly appreciated as it has been about 95 degrees here lately. Thanks!
I checked the low pressure switch - Okay
I checked the relay - Okay
I ran power directly to the clutch - Engaged
So... where do I go from here?
How do I test the AC control unit to see if it is working correctly and telling the relay to engage the clutch?
What else am I missing that I need to test?
Any advise would be greatly appreciated as it has been about 95 degrees here lately. Thanks!
07-04-2014, 05:03 PM
#3
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Year: 1990
Model: Cherokee
Engine: 4.0L
07-04-2014, 07:59 PM
#4
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Year: 1996 Two Door Wagoneer
Model: Cherokee
Engine: 4.0L
But I recharged it anyway and it worked fine from then on.
Go figure! But it did the trick. Worth the $30 to try.
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