1999 grand cherokee 4.0 i6 overheating at idle.

Asked by Sep 06, 2014 at 11:08 AM about the 1999 Jeep Grand Cherokee Laredo 4WD

Question type: Maintenance & Repair

I have already changed out radiator fan and
fan relay. Thermostat is one 1yr old... at a
total loss please help!?
Fan does not come on with ac or temp
reading 225+

3 Answers

68,245

Have you replaced temp sending unit,it tells, the ecm to tell the relay to cut fan on.

68,245

And it should cut on with ac on,check the fan it self.

Will try replacing that next thank you. *crosses fingers

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