aux fan and A/C clutch Relay
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Newbie
Joined: Jul 2017
Posts: 1
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From: New York
Year: 1996
Model: Cherokee
aux fan and A/C clutch Relay
Hey, New to the XJ fam. I picked up a 96 sport with the 4.0 that overheats every once in a while. Noticed the aux fan doesn't kick on consistently. If I pull the relay and reseat it, it will fire for a split second and then go back to normal state. I am metering the main/switched/and ground as they should be. If I feed the relay a battery/chassis ground the relay remains fired. Same issue with the A/C clutch. Wire schematics show the ground hitting the ECU, Possible cause?
Member
Joined: Aug 2015
Posts: 183
Likes: 2
From: Florida
Year: 2001
Model: Cherokee
Engine: 4.0
Hey, New to the XJ fam. I picked up a 96 sport with the 4.0 that overheats every once in a while. Noticed the aux fan doesn't kick on consistently. If I pull the relay and reseat it, it will fire for a split second and then go back to normal state. I am metering the main/switched/and ground as they should be. If I feed the relay a battery/chassis ground the relay remains fired. Same issue with the A/C clutch. Wire schematics show the ground hitting the ECU, Possible cause?
Otherwise fan operation isnt exactly consistent. Has to be at a certain temp with and without AC
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