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Old 10-28-2009, 11:09 PM   #1
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Default runs hot

got a 1990 cherokee that runs hot quick i took the therm.out, flushed it out, done a compression test and no water in my oil. about 5 to 10 min. after idleing it starts going back into my ress. with a stream as big as the hole. was wondering what yall thoughts r bot it. thanks in advance.
p.s. it starts bubbling out the ress.
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Old 10-29-2009, 01:24 AM   #2
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head can be not good is there knock in the vale cover
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Old 10-29-2009, 02:30 AM   #3
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radiator clogged?
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Old 10-29-2009, 02:49 AM   #4
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did you do a fluid change
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Old 10-29-2009, 06:41 AM   #5
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1990 isnt that renix with the closed pressure system? Did you burp it well after taking the t-stat out etc?
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Old 10-29-2009, 06:49 AM   #6
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it can be water pump
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Old 10-29-2009, 01:45 PM   #7
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Mine ran hot because my coolant bottle was leaking.Fix it and now it dont get hot anymore.
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Old 10-29-2009, 01:50 PM   #8
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check the pump remove and inspect it ,,mine run hot and the blades on the impellar were gone I guess they just rusted away ,,new pump from the zone and prob. was solved its abt a 2 hour job...
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Old 10-29-2009, 01:52 PM   #9
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Aint there like a weeping hole on the water pump that when it starts to go bad it will leak?
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Old 10-29-2009, 02:15 PM   #10
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jeep85
is this the knock your talking about?
Mine does this and gets hot like 220-230 after 15min of driving
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