2003 Jeep Grand Cherokee Logo
Posted on Feb 22, 2010
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Vehicle is overheating

I have a 2003 jeep grand cherokee 4.0L that I have replaced the radiator, thermostat, and temp. switch and my vehicle is still overheating when it is idling for more then 6 min. Do you have any suggestions?

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glass69ss118

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  • Posted on Feb 22, 2010
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Electric fans or belt driven? if electric are they kicking on?

charles

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  • Posted on Aug 28, 2012
charles
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Check cooling fan operation also while vehicle is cold remove radiator cap and start vehicle if coolant shoots up a few inches then head gasket is bad and vehicle will run ok other than overheating. THIS MUST BE DONE WHILE VEHICLE IS COLD.

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  • Posted on Feb 22, 2010
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I had the same problem with my jeep. Does yours have 2 cooling fans? Mine does. One runs constantly and the other kicks on and off. the electric fan wasnt coming on. replaced fan motor and the problem was solved.

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Regards,
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