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Old 06-17-2007, 10:08 PM
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overheating problem

i drive my jeep every day and the temperature is perfect. But when i go offroading in the middle of nowhere in that hot sun, sometime my jeep overheats. Down in miami, florida there is nothing but mud and when i go wheeling, i go with like 15 other jeeps. So staying stationary with the engine running while stuck or waiting for everyone to cross a difficult obstacle , overheats my engine. Ive read of a couple way to cool a jeep like hood vents, or electric fans, ect. But i want to see what you guys have done, thats if uve had this problem cuase im looking to do something more ideal and not to drastic to fix or better this problem. Any advice or pics would be greatly appreciated. thanks
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Old 06-17-2007, 11:52 PM   #2
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well is your cooling system stock/factory original, or what? If your factory original id suggest to start with a good flush of the coolant. or for a less drastic modification you could bet a little bigger radiator (i believe when i bought mine the guy said he put a 3 core heavy duty radiator in it).

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Old 06-18-2007, 12:17 AM   #3
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you rad is prolly clogged up with mud.

You can add a electric fan to the front of the rad to help. Im running 2 E fans and no clutch fan. but i dont do much mud because of the clean up and over heating issues like yours i was having.
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Old 06-18-2007, 12:42 AM   #4
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Try running a hose in your rad to flush out the mud and stuff from the fins.

I'd siggest a secondary electrical fan on the front so you can flip it on and off when needed.
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Old 06-18-2007, 02:26 AM   #5
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secondary electrical fan is the key the stock fan runs off engine rpm's and just wont cut it when you're stopped
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Old 06-18-2007, 07:32 AM   #6
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Try the basic - low cost - maintenance items first. Flush the hell out the radiator (inside and outside). Inspect the radiator when it's empty, look inside. Make sure it doesn't look like left over cheese sauce. The fins on the outside of the radiator are critical and need to be unobstructed... Mud and debris can block the air circulation which will cause overheating. Use a high pressure hose to remove the debris.

If the above does not cure the problem, try changing the thermostat and radiator cap. Sometimes these can cause problems too when they fail. A new water pump and/or radiator would be the last thing to change.

Make sure you change your oil if you overheat. Oveheating causes the oil to break down prematurely and will cause it to thin out as well as make extra sludge which can block critical drainage passageways.

It ain't no fun unless you get some of it on you.
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Old 06-18-2007, 10:19 PM   #7
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X 1000

what MOz said!

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Old 06-18-2007, 11:36 PM   #8
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When you say overheat are you saying full on boiling coolant or does the gauge just move up?

Jack Hickman

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