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DG4x4
New User
Jan 9, 2007, 10:24 PM
Post #1 of 6
(2870 views)
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93 Jeep yj
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I have a 93 jeep that drops rpms causing a 'check ingine' light to appear. This happens randomly. It clears itself once it is restarted. When I hooked up the diagnostics it came back 'ac clutch short'. Does anyone have an idea what to check first?
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steve01832
Veteran
Jan 10, 2007, 3:11 AM
Post #2 of 6
(2866 views)
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Unplug the electrical connector at the A/C clutch. If the code goes away, the problem is the clutch. If the code comes back, you either have a wiring problem, a relay problem, or a PCM problem. Further diagnosis is needed at that point.
Steve
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Guest
Anonymous Poster
Jan 11, 2007, 8:17 PM
Post #3 of 6
(2861 views)
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Is the 'A/C clutch' code that appears for 'A/C'? Silly question I know, but I don't have A/C. I recently change the water pump and alternator. I wouldn't think either of these would possible cause this, but could they? If I routed the belt wrong? Thank You for the previous info.
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DG4x4
New User
Jan 12, 2007, 1:13 AM
Post #4 of 6
(2857 views)
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Thanks for the info. I'll try reading the manual to fing those items. Post #3 was a question for you. Sorry (New User). Thanks again.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jan 12, 2007, 2:41 AM
Post #5 of 6
(2855 views)
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Just a note: You almost can't route a belt wrong but they do need to be in exactly the right grooves. Good luck, T
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steve01832
Veteran
Jan 12, 2007, 4:33 AM
Post #6 of 6
(2852 views)
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Often times the manufacturer uses the same PCM for vehicles with A/C and without. If the A/C components are not there then these codes will set. We just ignore them because there is no way to keep them from coming back. An A/C clutch code should not kick the MIL. Double check the code the next time it comes back. Also, double check the code definitions because the code may mean something else if the vehicle is not equipped with A/C.
Steve
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