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Old 07-06-2012, 11:34 PM   #1
423coachb7's Avatar
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JK Interstate Driving and Overheating

Has anybody had any trouble with their JK water temperature getting hot while driving on the interstate? My JK has the factory tow package with the 3.73 rear gear ratio. Need to know if this is common or just a problem with my jeep. Thanks!
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Old 07-07-2012, 05:07 AM   #2
MARGARET, 10-14-51\6-1-12

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are you talking hot or needle in the red, i sit in boston traffic for an hour every day, and yes the needle does creep up a bit, but nothing i worry about,,, try getting some water wetter or be cool, to add to your rad... also have you been out in the mud or standing water, it will clog the fins in your rad and cause it to run hotter than normal, may even make you over heat. if so run the hose from the engine compartment out through you grill ( backwards ) this will flush out the fins in your rad.


life is too short to be taken seriously all the time,,,, go buy a MR.potato head and have some fun.
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Old 07-11-2012, 05:10 AM   #3
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This was my temperature gauge last night, I was going about 35 mph, and it was 70 deg outside. Can't be normal.
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Old 07-23-2012, 06:36 AM   #4
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I am suffering this on an older 2000 TJ, but even with my mileage it is not normal.


After shutting the engine try and touch the radiator core with a palm from the fan/engine side - in my case, the right (passenger) half of it is hot while the left (driver) side half cold.

And this is a relatively new (10000 miles, 2 years) dealer-installed radiator, well filled with clean coolant, well draining to the expansion cup when hot.

Please share your further steps, let me know.

(I bet Chrysler shall know this problem)

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