Question about 2001 Jeep Grand Cherokee
Is there a possible link between the fan relay switch and the oil pressure sending unit and/or pressure switch? I've been replacing one after the other. If the fan relay switch is replaced, the oil pressure gauge goes crazy. If I replace the oil pressure sending unit and pressure switch, the fan relay stops working. Some sort of short or wiring harness problem?
I don't know if this will help anyone, but i had a issue with my jeep running hot and check engine light coming on as well. After alot of trips to different shops - the last one found that there were two senors in the engine for the fan that need to be changed. Everyone would aways fine the one up top but not the second one. After that, have not had any other problems like it since.
Posted on Mar 23, 2009
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