Question about Jeep Cars & Trucks
Is the relay or sensor bad? You could just wire fan to battery and use a toggle switch...
Posted on Dec 12, 2016
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Posted on Jan 02, 2017
Got your cure just behind the pasenger side headlight is a sensor you wiill see it unplugs you may have to take the bumper off maybe not.Replace that coolant sensor .
Posted on Jul 23, 2008
A common problem on many of the new cars is that when a person gets gas, they don't tighten up the gas cap. This will turn on the check engine light. Did you get gas recently? Another option is to see what code is stored in the ECU that turned the light on. This is done with a scanner tool. If you do not have a scanner, then have a dealer look at it.
Posted on Nov 07, 2008
Check the wiring from the relay to the fan motor, and check the wiring from the fuse block. Basically check all wires that supply power to the fan motor, use a volt meter. Fan Relay (behind headlight, under battery) on the 2001 GC 4.0L are a piece of ****, I change mine almost yearly. The problem is their location, a high heat area prone to the elements. I understand that 2002 and newer, the location was changed and the problem solved. Relay might close the circuit when cold or at reasonable temps, but might open a circuit when it heats up, causing the problem.
Posted on Apr 03, 2009
Replace the fan relay switch. The dealer will charge you 400 to pull the bumper off, or you can buy the part for 45 and cut the hole in the plastic near the passenger headlight assembly and replace it yourself. There are instructions for this procedure on the web somewhere. I have had this problem more than once with my 02 GC V6.
Posted on Aug 10, 2009
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