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89 jeep cherokee overheating issues

Old Jul 21, 2024 | 10:15 PM
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Default 89 jeep cherokee overheating issues

Had radiator Crack open so I replaced it with ebay 3row aluminum radiator with electric fans. But now it has heating issues, it will go past 210 when driving around or idling but never boils over. Has new water pump. It has no thermostat in it. Do I put the clutch fan in it? Or head gasket blew?
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Old Jul 22, 2024 | 08:19 AM
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Year: 1988
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How far past 210? Do the fans come on? Jeep should run around that normally. I would put the thermostat back in to improve warmups and efficiency. .

Did you flush the rest of the system when you changed the rad? Have you verified the temps with an IR thermometer?
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Old Jul 22, 2024 | 08:47 PM
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Is that the correct temp sensor? Asking, since the stock one goes in the back of the head and is not the same as the later years that go in the thermostat housing.
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Old Jul 22, 2024 | 10:23 PM
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I assumed that one controls the fans but good question.
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Old Jul 23, 2024 | 10:14 PM
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Default It was thermostat

I put in a 195 thermostat, bleed the system and now it doesn't over heat thx
been running for 20 minutes now

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Old Jul 23, 2024 | 10:17 PM
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Originally Posted by lawsoncl
Is that the correct temp sensor? Asking, since the stock one goes in the back of the head and is not the same as the later years that go in the thermostat housing.
I added that sensor control the efans 180 on 160 off
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