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CF Veteran
Joined: Sep 2010
Posts: 12,692
Likes: 6
From: Mercer County, NJ
Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
Herp Derp Jerp

Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
Herp Derp Jerp

Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
CF Veteran
Joined: Feb 2011
Posts: 3,500
Likes: 0
From: Long Beach, Ca
Year: 2000
Model: Cherokee
Engine: 4.0 I6
Well I'm having an issue with AC. When engine temp gets above 210 for too long the compressor stops ruining. A few minutes after it gets below 210 it'll start working again.
Senior Member
Joined: May 2013
Posts: 541
Likes: 1
From: Vancouver
Year: 1998 and 1988
Model: Cherokee
Engine: 4.7
If relay is good then I would disconnect fan relay again and check if it is getting signal and ground to turn on from PCM.
If all of the above worked as advertized I would scratch my head a little an pull my schematics
CF Veteran
Joined: Feb 2011
Posts: 3,500
Likes: 0
From: Long Beach, Ca
Year: 2000
Model: Cherokee
Engine: 4.0 I6
first thing I would do is pull the fan relay and bypass it with a wire to see if the fan works. If it does, I would swicth it with one of the other relays to confirm it works in the other spot (start relay for example).
If relay is good then I would disconnect fan relay again and check if it is getting signal and ground to turn on from PCM.
If all of the above worked as advertized I would scratch my head a little an pull my schematics
CF Veteran
Joined: Mar 2010
Posts: 6,685
Likes: 6
From: Jacksonville, FL
Year: 92
Model: Cherokee
Engine: 4.0
Moderator of Jeeps
Joined: Jul 2011
Posts: 21,029
Likes: 3
From: Frederick, MD from Cleveland, OH
Year: 1993 YJ Wrangler
Engine: 4.0 I6




