Question about 2008 Jeep Commander

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Runs hot when sitting still and the AC is on. Already changed thermostat which was not the problem.

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The radiator fan(s) must come on immediately when the AC is turned on. Blow out the radiator core from the engine side with compressed air to get rid of bugs and other debris. Make sure the radiator cap seal is in good condition (check when cold). Is the engine hot enough to force coolant out of the radiator? Hope some of this helps!

Posted on Jul 29, 2010

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