1999 Jeep Cherokee 4.0
09-24-2014, 06:02 PM
#31
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Location: College Station TX
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Year: 1999
Model: Cherokee
Engine: 4.0 i6
Now here's something you might want to research. I read somewhere that some 1999 4.0s have the infamous and dreaded 0331 head on them. Those heads have a known casting flaw around the #3 cylinder area that is prone and even likely to crack, especially after an overheating episode. But some can and do crack under normal use. These heads were definitely used in 2000-01, and you will see numerous posts on here from owners of those.
09-24-2014, 06:39 PM
#32
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Year: 2001
Model: Cherokee
Engine: 4.0L
Were finally getting somewhere. I'm not sure how the coolant circulated at all:
I have the same problem this guy had, except he never mentions water boiling out in his TJ. Well hopefully this fixes it, if not we'll see.
I have the same problem this guy had, except he never mentions water boiling out in his TJ. Well hopefully this fixes it, if not we'll see.
Haha yep, pretty much.
09-29-2014, 06:27 PM
#33
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Year: 1999
Model: Cherokee
Engine: 4.0 i6
Got it all back together today. Temp guage never gets to the middle line now, and no more boiling over. Thanks everyone.
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