Question about 2003 Jeep Grand Cherokee

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2003 Jeep Grand Cherokee, Over heated suddenly and lost a lot of the anti freeze. I Let it cool down and put some water in it, but not much. I suspect the thermostat is not opening. The car heated up right away and went to over temp. Also noticed the radiator fan was not running even when it heated up

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Hi,

Thanks for writing to Fixya.com.

The grand Cherokee has a fluidic clutch in the fan assembly. When the temperature increases the fluid becomes thicker causing the fan to engage. Over a long period of time this fluid breaks down and the clutch mechanism in the fan will no longer engage, causing overheating. It was the radiator fan. It's a 2 speed thing and while idling the higher speed did not work. Will not be cheap , the bumper has to come off.
Thank You for contacting Fixya and please accept the solution if it has helped you.

Posted on Jul 31, 2010

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Best of luck.





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