over heating - JeepForum.com
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post #1 of 19 Old 04-29-2011, 11:12 PM Thread Starter
sgtrandell101
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over heating

My Jeep will over heat when it is idling. Any ideas why? I have flushed and cleaned my radiator

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post #2 of 19 Old 04-29-2011, 11:14 PM
jeepinvader
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Thermostat stuck closed?

Free Chuck!
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post #3 of 19 Old 04-29-2011, 11:55 PM
moonshinefuel
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Could be the fan clutch.
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post #4 of 19 Old 04-30-2011, 12:04 AM
nembudonna
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Quote:
Originally Posted by moonshinefuel View Post
Could be the fan clutch.
Times 2, If it was the thermostat stuck closed, it would overheat all the time. But when you flushed the radiator did you also flush the heater core? If not, do it. You won't belive what comes out of there.
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post #5 of 19 Old 04-30-2011, 11:07 PM Thread Starter
sgtrandell101
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Ya I flushed it or I'm pretty sure I did. My fan is working It could be my thermostat
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post #6 of 19 Old 04-30-2011, 11:19 PM
nembudonna
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I'am not saying your fans not turning. But is it turning fast enough at an idle? Mine turned, but not fast enough. If it was the themostat, why would it work when you are going fast? How would it know? But it's a cheap try and you probably could use a new one. Get back and let us know. I hate it when people don't get back with what it was. Good Luck
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post #7 of 19 Old 04-30-2011, 11:25 PM Thread Starter
sgtrandell101
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Ok how could I tell if my fan is turning fast enough?
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post #8 of 19 Old 04-30-2011, 11:36 PM
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Put on a THICK glove and try to stop the fan. If it stops easily, then your fan clutch is gone. If it's difficult to stop, then it's something else.
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post #9 of 19 Old 04-30-2011, 11:46 PM
nembudonna
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You spin the fan with your finger. It should have quite a bit of drag. If your not sure of the drag, pop the hood on another jeep and try it. Or start your jeep and look at your fan and see how fast it's turning at idle and have someone give it some gas and you'll see the Rpm difference. When they let off the gas you should see alot of difference. If not, it's turning to slow. Good Luck
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post #10 of 19 Old 04-30-2011, 11:49 PM
nembudonna
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Originally Posted by Xpress View Post
Put on a THICK glove and try to stop the fan. If it stops easily, then your fan clutch is gone. If it's difficult to stop, then it's something else.
WOW, that could hurt. But I've seen guys do it. But then I've seen guys do the either in the tire thing.
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post #11 of 19 Old 04-30-2011, 11:50 PM Thread Starter
sgtrandell101
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Thanks ill let you guys know
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post #12 of 19 Old 05-01-2011, 12:39 AM
Xpress
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Quote:
Originally Posted by nembudonna View Post
WOW, that could hurt. But I've seen guys do it. But then I've seen guys do the either in the tire thing.
I don't mean to just SHOVE your hand in there, but gradually try to stop it. It shouldn't stop easily, but if it does, no more clutch.
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post #13 of 19 Old 05-01-2011, 08:36 AM
nembudonna
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I wasn't getting down on you. Some guys do it that way. But when someone told me to do that to check mine, it sounded to crazy. Again, I didn't mean anything.
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post #14 of 19 Old 05-01-2011, 10:10 AM
Xpress
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Originally Posted by nembudonna View Post
I wasn't getting down on you. Some guys do it that way. But when someone told me to do that to check mine, it sounded to crazy. Again, I didn't mean anything.
Yeah, it sounds crazy enough already. I mean, a heavy metal fan blade, and you're supposed to stick your hand in there while it's turning???
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post #15 of 19 Old 05-01-2011, 11:13 AM
moonshinefuel
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Found a pretty good page on how fan clutches work and trouble shoot for the o.p.
http://www.aa1car.com/library/cooling_fan_clutch.htm
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