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Running hot

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Old 07-20-2019, 04:51 PM
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Year: 1997
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Engine: 4.0L
Default Running hot
When ever i run my ac..my xj 4.0 runs hot..so hot she's spilling out from the upper radiator hose..no ac she runs perfectly..fine around 210 degrees...what is going on..
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Old 07-20-2019, 05:11 PM
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Does the auxiliary fan (electric) come on when the a/c is running?
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Old 07-20-2019, 08:30 PM
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Do you still have a fan shroud? Very important part.
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Old 07-21-2019, 05:38 AM
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Default Running hot
Yes..i still have my fan shroud..but I'm not sure if my aux fan is operating when ac is on..how can i check aux fan..I'm thinking of putting in a separate on off switch for the aux fan so i can operate it manually
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Old 07-21-2019, 06:20 AM
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From my favorites:
http://www.lunghd.com/Tech_Articles/..._Diagnosis.htm
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Old 07-21-2019, 11:20 AM
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Originally Posted by Performance plus
Yes..i still have my fan shroud..but I'm not sure if my aux fan is operating when ac is on..how can i check aux fan..I'm thinking of putting in a separate on off switch for the aux fan so i can operate it manually
Pop the hood and see if it turns on while the a/c is running.
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Old 07-21-2019, 08:23 PM
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Originally Posted by Performance plus
runs hot..so hot she's spilling out from the upper radiator hose
It's leaking from one of the ~2" radiator hoses? Or blowing out around the radiator cap?
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