Can't figure out overheating problem...
#1
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Model: Cherokee
Can't figure out overheating problem...
I have a 98 XJ with the 4.0 in it. I have had overheating problems for the past few months and it's driving me crazy trying to figure out what is wrong! I have replaced both radiator hoses, had a radiator flush and replaced the water pump and it still overheats. Yesterday I was driving down the street and things were fine, as soon as I stopped and parked the radiator was hissing and all my coolant came pouring out the front! Somedays it drives great and others it has serious issues. I always seems to smell coolant when I am driving if that helps. Please help me, I am going crazy!!
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Just checked the oil and it seems ok. Plus the car doesn't drive bad at all, no sputter or problems when starting or slowing down. What are the signs of a bad radiator or heater core?
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I always seem to smell coolant even if the car has sat for long periods of time. I think it's b/c old burnt coolant is all over the place, that smell it way too familiar.
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Year: 1995
Model: Cherokee
Engine: 4.0 I6
Improper cooling
Perform a pressure test, that will rule out the rad if it passes.
I have seen the O ring on the water pump leak discreetly enough to dump massive amounts of coolant on a short trip. I take it you have inspected every inch of the engine bay for white/green build up?
Also check heater hose near firewall, is it really squishy?
Perform a pressure test, that will rule out the rad if it passes.
I have seen the O ring on the water pump leak discreetly enough to dump massive amounts of coolant on a short trip. I take it you have inspected every inch of the engine bay for white/green build up?
Also check heater hose near firewall, is it really squishy?
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#9
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Thanks for all the responses guys, I think I will go get her pressure tested. I just had a radiator flush a few months ago and nobody mentioned any problems. The heater hoses are in great shape and the thermostat valve is brand new as well. Here is the one problem I keep noticing, whenever I fill the coolant/radiator up there is always tons of brown gunk in the reservoir and on the radiator cap, could that be anything?
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Year: 1993
Model: Cherokee
Engine: 4.0
If you just had a radiator flush you shouldn't have anything but nice green coolant showing when you remove rad cap. The brown gunk, is it particles, or is it liquid?
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Year: 1988 limited
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Engine: 4.0 litre
Thanks for all the responses guys, I think I will go get her pressure tested. I just had a radiator flush a few months ago and nobody mentioned any problems. The heater hoses are in great shape and the thermostat valve is brand new as well. Here is the one problem I keep noticing, whenever I fill the coolant/radiator up there is always tons of brown gunk in the reservoir and on the radiator cap, could that be anything?