Question about Jeep Cherokee

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Not sure. My jeep runs a bit hot. Have replaced the thermostat and checked electric fan. Ran cool for about two hours on the highway then started running a bit hot again. (just under the red on gage). How can a troubleshoot the fan clutch? I can "freewheel" the fan with my hand with the engine off. This doesn't seem normal but I'd like to know for sure how to test.

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You really can't get a positive test with the clutch fan because it reacts with heat. I would just replace it. Not sure of the mileage, year or engine type, this info would help. Another area to suspect is the radiator, they too are only good for a certain amount of time depending on mileage.

Posted on Aug 28, 2010

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Okay, it may be due to overheating, that may be the noise you heard, lets hope. first allow engine to cool, open radiator cap or the resivoir cap, which ever is the fill, remove the bleeder at top hose and fill radiator slowly until coolant comes out bleeder.

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A few questions, does this jeep have an electric fan?
when you heard the knocking was engine temp hot?
If you start jeep cold does engine knock?
Did this jeep get a new thermostat with waterpump job?
did it overheat when pump went bad and why did water pump get replaced?

sorry for all the questions ,just trying to get all the info to help you .

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