Jerry- You may want to replace your coolant temperature sensor - the one located in the thermostat housing. That's what tells the computer when it's time to turn on the fan. And while you're at it, you might also want to wire a switch as you mentioned so you can turn the fan on and off at will. That way you can keep the fan running after you've shut the engine off. You could even get tricky and wire in a delay switch that'll automatically turn the fan off after a certain period of time, which would allow you to walk away from the Cherokee after shutting it off. dan Date: Tue, 29 Apr 2008 04:02:53 -0700 (PDT) From: Jerry Casper <gremlingts@xxxxxxxxx> Subject: [Amc-list] Jeep Cherokee question - electric fan, source / sensor location for power? To: amc-list@xxxxxxxxxxxx, AMC <amc-delmarva@xxxxxxxxxxxxxxx> Message-ID: <441467.56023.qm@xxxxxxxxxxxxxxxxxxxxxxxxxxx> Content-Type: text/plain; charset=us-ascii The electric fan in my '94 Cherokee Sport won't cut on automatically anymore, hasn't since before last year. It's already starting to show signs of overheating with A/C on, so I would like to fix it before the hot season starts fully. I've tried swapping the plug-in fuse/relay in the underhood fuse box for the fan, no go. The fan works with voltage jumped to it, so I know it's still good itself. So, where is the sensor located that's supposed to trip the fan on located at? It looks like the wires disappear into the harness, and I can't tell without ripping it apart. In the interim, I may just run a hot-wire to the fan to a switch, to have it running when the Jeep is. Any help is appreciated from anyone else experienced with this problem. Thanks! Jerry Casper Gremlingts@xxxxxxxxx _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list