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Unread 09-01-2006, 07:39 PM   #1
chrisvr6
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Join Date: Nov 2004
Posts: 174
overheating, HELP!

I changed the thermostat, flushed the system and it's still slightly overheating in idle. Once I rev it in park and turn on the A/C it goes all the way to the red. Can someone give me an idea whats happening!

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Unread 09-01-2006, 07:46 PM   #2
FL 4.0L
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Location: FL
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Year, engine, history of water pump and radiator? Losing any fluid?
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Unread 09-01-2006, 07:53 PM   #3
chrisvr6
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99', not losing any coolant, factory water pump, and the second radiator. This happened last week while offroading on a super hot and muggy day. Now its acting up again!
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Unread 09-01-2006, 07:58 PM   #4
wcurleyq
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Location: Douglasville Ga
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Check the radiator cap to make sure it is holding the correct pressure. Make sure you put the correct rated temp thermostat in. Most likely a 195 deg. If it is a 4 banger, make sure the electric fan is comming on. Also check the clutch fan.
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Unread 09-01-2006, 07:59 PM   #5
opticalwaveguy
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2000 TJ Wrangler 
 
Join Date: Apr 2005
Location: Portland, OR Vancouver, WA, Washington
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What and how did you flush it?
What type of thermostat?
How's the engine been running?
What's the last several things you did to your Jeep?
(I find this is a good place to start looking)
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Unread 09-01-2006, 11:11 PM   #6
fish4life
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1997 TJ Wrangler 
 
Join Date: Jul 2006
Location: Vancouver
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observe overflow bottle and see how much the water raises from when the engine is cool to when the engine is running hot.

if it raises by like half a bottle then your cap is not holding pressure in.

Touch the top and bottom hoses .... is one of them hot and the other cold when the engine is running hot ???
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