Cant stay cool
#1
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Model: Cherokee
Cant stay cool
Hello I have a 95 cherokee 4.0 HO that over heats at high way speed driving on minor grades but stays cool when I am crawling. I recently upgraded to a 3 row aluminum radiator, high flow water pump, and 3 electric fans. By now I would think my jeep cooling system is solid. Can anybody chime in of what is going on. I also did a compression check so no blown head. Thank you
#4
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Year: 1998 Sport
Model: Cherokee
Engine: 4.0
Like Xjwonders said How's the t-stat? I would try to find an OEM one and give that a try. After market ones are a bit iffy when it comes to our XJ's
#5
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Before I installed it I tested it so I know it's good. My hoses are all good also they all have spring. I'm wondering if my jeep is just over heating from carrying to much weight up grades?
#7
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Year: 1988
Model: Cherokee
Engine: 4.0
Not an expert here but just a thought. If bottom radiator hose doesnt have a wire spring in it could it be collapsing at higher rpms causing lower flow? Just a thought.
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#11
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Year: 1990
Model: Cherokee
Engine: 4L
Just a thought... Too many fans blocking airflow? Cowling leaking air and making the fans less efficient? Fans wired backwards and pushing instead of pulling?
A totally separate question... Sorry for the hijack... Did the 3-row radiator fit okay? I've got a leaky radiator and am considering an upgrade, if I don't have to make modifications to the other stuff. 1997 Cherokee, automatic, A/C, mechanical fan + 1 electric (stock setup).
A totally separate question... Sorry for the hijack... Did the 3-row radiator fit okay? I've got a leaky radiator and am considering an upgrade, if I don't have to make modifications to the other stuff. 1997 Cherokee, automatic, A/C, mechanical fan + 1 electric (stock setup).
#12
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Year: 1994...mostly...
Model: Cherokee (XJ)
Engine: 4.0L I6 HO, Lot's of Bolt Ons
How did you fit three, two sounds like you'd be blocking air flow, also are you sure you've got them installed correctly for pushing and pulling.
Also do you have them wiring correctly so they are not Spinning backwards?
#14
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Year: 1998
Model: Cherokee
Engine: 4.0L HO
Need to explain further. Has something changed? Have u added a lot of weight? Anything blocking air flow? Huge tires? Did it overheat prior to the new rad? It's possible that an aftermarket rad, regardless of the number of rows, is not as efficient as the OE stock 1 row rad. What is the core thickness? If it's not thicker than OE stock, it's probably not as efficient. Shouldn't need any fans at hi-way speeds.
#15
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Model: Cherokee
Just a thought... Too many fans blocking airflow? Cowling leaking air and making the fans less efficient? Fans wired backwards and pushing instead of pulling?
A totally separate question... Sorry for the hijack... Did the 3-row radiator fit okay? I've got a leaky radiator and am considering an upgrade, if I don't have to make modifications to the other stuff. 1997 Cherokee, automatic, A/C, mechanical fan + 1 electric (stock setup).
A totally separate question... Sorry for the hijack... Did the 3-row radiator fit okay? I've got a leaky radiator and am considering an upgrade, if I don't have to make modifications to the other stuff. 1997 Cherokee, automatic, A/C, mechanical fan + 1 electric (stock setup).