1998 freaking overheating problem - Jeep Wrangler Forum

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Old 08-14-2012, 07:15 PM   #1
Join Date: Aug 2012
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1998 freaking overheating problem

Jeep continues to overheat. Radiator less than two years old and clean. New cap thermostat, water pump. Flushed entire system and all seems good. Just rebuild and had head checked due to an overheat back in winter. Fan clutch seems to be good. I can run the motor all day with it sitting there and the heater on with no problems. I can drive ten to fifteen miles and it sits about 220. Any further than that and it spikes the temp up. Kick it in neutral and it comes back down to about 220 and stays there for awhile before it spikes again. On shut down it is boiling. Not sure what else to do. Pulled the thermo and going to check it maybe a fan clutch. Just tired of the parts swap. Oh also when i had the head off the block ports didn't look to bad considering the jeep has 170k on it. Any suggestions and sorry looked through the post for the last few days and have not come up with a solution. Thanks

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Old 08-14-2012, 07:50 PM   #2
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98 would be a TJ. In the YJ 85-95 there are two different pumps. One is clockwise rotation and the other is counterclockwise. May be your problem.

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Old 08-14-2012, 07:58 PM   #3

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This needs to be moved to the TJ section of the forum.
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Old 08-14-2012, 08:43 PM   #4
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Sorry bout that. Still learning the ropes. Once I figure out how to delete the post I will.
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Old 08-14-2012, 08:51 PM   #5
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This is my next Jeep mod! Not sure if it would control your temperature spikes, tho.

Tomb Raider #815 RUBICON with 35s
4" 33" to 35"
https://scontent-b-sjc.xx.fbcdn.net/hphotos-xpf1/t1.0-9/1517457_10203416408666416_5192773015714389607_n.jp  g
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