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Old 05-29-2012, 06:19 PM   #1
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1991 Jeep getting hot

My 1991 jeep wrangler 2.5 auto trams is getting hot. The gauge is just above 210 and when I get out I can hear the anti freeze boiling. I tried flushing the radiator today and it didn't help. Just driving 5 miles or so it doesn't get hot but is you for a little bit it will get hot. What should I do? Thanks for the help.

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Old 05-29-2012, 06:27 PM   #2
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Originally Posted by thorn4570
My 1991 jeep wrangler 2.5 auto trams is getting hot. The gauge is just above 210 and when I get out I can hear the anti freeze boiling. I tried flushing the radiator today and it didn't help. Just driving 5 miles or so it doesn't get hot but is you for a little bit it will get hot. What should I do? Thanks for the help.
Sounds like a stuck thermostat. You can remove it and drive with it out temporarily to see if that takes care of it. It will take a bit long for the engine to get up to temp, but since it's summer in most places, this should occur relatively quickly.

Also check the fan clutch. It's a commonly replaced item. To test, wait for the engine to cool completely, and then spin the fan blade. If a good spin rotates five or more turns, that's generally a sign for needing replacement.

Hope this helps,

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Old 05-29-2012, 09:53 PM   #3
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Thank you very much.
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