Still overheating - JeepForum.com
 
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post #1 of 11 Old 06-03-2008, 06:25 PM Thread Starter
usetobejeeper
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Still overheating

So I've replaced the thermostat and radiator and still the jeep wants to run hot/overheat. I guess the water pump is next, although it makes no noise or leaks. I'm at wits end, I'm 45, have owned and serviced many different vehicles, and never had a problem like this. I mean there's only so many parts to a cooling system.

One thing I've wondered is if that A/C radiator in front of the main one could be dirty and restricting air movement.


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post #2 of 11 Old 06-03-2008, 07:08 PM
Grewe02
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Are you sure you put in the right thermostat? What temperature did you use? Normally when the Jeep runs hot it means you have gunk in your system. Did you do a complete flush when you replaced the radiator? (I'm guessing you did)

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post #3 of 11 Old 06-03-2008, 08:01 PM
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How'd the fluid look in your system? If it was nasty looking, you may want to check the fins in your water pump. I read somewhere that they can actually corrode to the point where there are no fins!!!
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post #4 of 11 Old 06-03-2008, 09:43 PM
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Quote:
Originally Posted by Grewe02 View Post
Are you sure you put in the right thermostat? What temperature did you use?
The temperature rating of the thermostat doesn't control the maximum temperature of the coolant, only the minimum temperature.
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post #5 of 11 Old 06-03-2008, 09:59 PM
ErnieG
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i went through the same thing with my jeep. it came down to the water pump so i pulled it and it seemed to be in good working order the impeller was fine it spun ok and didn't wiggle or squeak so i was a little confused but i ended up just getting a new one ( like 40 bucks new at pepboys which inst too bad) now it works fine. so even if the pump seems to work good change it anyway it worked for me

98 tj nothing special im too poor :(
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post #6 of 11 Old 06-03-2008, 11:28 PM
rmack
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when does it overheat?
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post #7 of 11 Old 06-05-2008, 05:04 AM Thread Starter
usetobejeeper
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Quote:
Originally Posted by rmack View Post
when does it overheat?
It doesn't overheat per say, since I replaces the radiator, it just runs hot. I have a 195 degree thermo and the gauge stays about 215-220.

It doesn't seem like theres much flow to the coolant so I'm leaning toward a water pump. Well that and theres really not much left to replace. LOL OK, not LOL really as I'm tired of this.....

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post #8 of 11 Old 06-05-2008, 07:18 AM
BadAddetude
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Belt might be slipping on the pump.

Rinse out the fins on the a/c condenser with a hose.

New pump wouldn't hurt, fairly simple to do.

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post #9 of 11 Old 06-05-2008, 07:35 AM
FLATFENDER54
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What guage is reading 215?? It supposed to run 210

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post #10 of 11 Old 06-05-2008, 07:37 AM
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what about the fan clutch? I replaced mine the other day after overheating several times over the winter and was able to spend a full day at Rausch Creek without overheating. If you're going in after the water pump you might as well do the fan clutch too.
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post #11 of 11 Old 06-05-2008, 09:25 AM
shadowrider1946
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Went through the exact same thing with mine, finally pulled the pump off and found the impeller was turning on the shaft. Replaced the pump and no other problems.
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