Overheated...Need Help...PLEASE
#1
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Model: Cherokee
Overheated...Need Help...PLEASE
Hi all,
I own a 1996 Jeep Cherokee Sport with a 4.0 in-line 6 (118K mi, purchased used 8 months ago).
This is my first Jeep ever and I am loving it.... Best truck I ever purchased.
I am in need of some assistance. The truck is overheating...the temp reaches well over 225 deg. and the electric fan will not kick on.
I have replaced the coolant temp. sensor and fan relay. The fan was replaced because the shroud was cracked. The fan works only when I turn on the AC. It will not come on at normal operation.
Weird thing though..i turned the heat on and the temp rose.
Anti-freeze level is ok. Is there a fuse for the electric fan?
My next step is to replace the thermostat (but I do not think that is the issue).
Can anyone help please.
Thank you
I own a 1996 Jeep Cherokee Sport with a 4.0 in-line 6 (118K mi, purchased used 8 months ago).
This is my first Jeep ever and I am loving it.... Best truck I ever purchased.
I am in need of some assistance. The truck is overheating...the temp reaches well over 225 deg. and the electric fan will not kick on.
I have replaced the coolant temp. sensor and fan relay. The fan was replaced because the shroud was cracked. The fan works only when I turn on the AC. It will not come on at normal operation.
Weird thing though..i turned the heat on and the temp rose.
Anti-freeze level is ok. Is there a fuse for the electric fan?
My next step is to replace the thermostat (but I do not think that is the issue).
Can anyone help please.
Thank you
#2
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Year: 1992
Model: Cherokee
Engine: 4.0L
Hi all,
I own a 1996 Jeep Cherokee Sport with a 4.0 in-line 6 (118K mi, purchased used 8 months ago).
This is my first Jeep ever and I am loving it.... Best truck I ever purchased.
I am in need of some assistance. The truck is overheating...the temp reaches well over 225 deg. and the electric fan will not kick on.
I have replaced the coolant temp. sensor and fan relay. The fan was replaced because the shroud was cracked. The fan works only when I turn on the AC. It will not come on at normal operation.
Weird thing though..i turned the heat on and the temp rose.
Anti-freeze level is ok. Is there a fuse for the electric fan?
My next step is to replace the thermostat (but I do not think that is the issue).
Can anyone help please.
Thank you
I own a 1996 Jeep Cherokee Sport with a 4.0 in-line 6 (118K mi, purchased used 8 months ago).
This is my first Jeep ever and I am loving it.... Best truck I ever purchased.
I am in need of some assistance. The truck is overheating...the temp reaches well over 225 deg. and the electric fan will not kick on.
I have replaced the coolant temp. sensor and fan relay. The fan was replaced because the shroud was cracked. The fan works only when I turn on the AC. It will not come on at normal operation.
Weird thing though..i turned the heat on and the temp rose.
Anti-freeze level is ok. Is there a fuse for the electric fan?
My next step is to replace the thermostat (but I do not think that is the issue).
Can anyone help please.
Thank you
#3
Do you hear banjos?
You should be able to force the fan on with the AC. Try turning on your defrost and it should cycle the fan. As far as the temp going up when you turn on the heat, IDK what the heck that is all about. Have you been in the system lately??
#5
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Year: 1992
Model: Cherokee
Engine: 4.0L
#6
Feel the top hose and the bottom hose with your hand, are they both hot? If not, the water is not circulating probably due to a bad waterpump. If the water isn't circulating then the sensor to kick the fan on has the same water that isn't being heated by the engine, meaning it is still cool and not signaling to kick the fan on. Just another possible option.
Last edited by JeepinDean; 09-12-2008 at 07:22 PM.
#7
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Year: 1990XJ/1989MJ
Model: Comanche
Engine: 4.0L Renix
You can also do what most trail Jeepers do and that is to wire a switch to manually turn the fan on. Most trail Jeepers overheat from slow crawling and lack of air circulating, thus the switch can override the thermostatically controlled fan.
Last edited by BlueXJ; 09-12-2008 at 07:44 PM. Reason: Addishuns an spellinzs
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#8
I had a bad over heating issue a few months ago so that's what I did was wire it in to a switch and I have yet to have any issues with over heating since.
#9
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Model: Cherokee
Feel the top hose and the bottom hose with your hand, are they both hot? If not, the water is not circulating probably due to a bad waterpump. If the water isn't circulating then the sensor to kick the fan on has the same water that isn't being heated by the engine, meaning it is still cool and not signaling to kick the fan on. Just another possible option.
I agree with Dean
Let us know.............
#12
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Year: 1990XJ/1989MJ
Model: Comanche
Engine: 4.0L Renix
Good point Jabo. I forgot to mention the spring. If it was disgarded they are hard to find replacements too. You will have to find one in a J/Y.
#15
Overheating
Hi all,
I own a 1996 Jeep Cherokee Sport with a 4.0 in-line 6 (118K mi, purchased used 8 months ago).
This is my first Jeep ever and I am loving it.... Best truck I ever purchased.
I am in need of some assistance. The truck is overheating...the temp reaches well over 225 deg. and the electric fan will not kick on.
I have replaced the coolant temp. sensor and fan relay. The fan was replaced because the shroud was cracked. The fan works only when I turn on the AC. It will not come on at normal operation.
Weird thing though..i turned the heat on and the temp rose.
Anti-freeze level is ok. Is there a fuse for the electric fan?
My next step is to replace the thermostat (but I do not think that is the issue).
Can anyone help please.
Thank you
I own a 1996 Jeep Cherokee Sport with a 4.0 in-line 6 (118K mi, purchased used 8 months ago).
This is my first Jeep ever and I am loving it.... Best truck I ever purchased.
I am in need of some assistance. The truck is overheating...the temp reaches well over 225 deg. and the electric fan will not kick on.
I have replaced the coolant temp. sensor and fan relay. The fan was replaced because the shroud was cracked. The fan works only when I turn on the AC. It will not come on at normal operation.
Weird thing though..i turned the heat on and the temp rose.
Anti-freeze level is ok. Is there a fuse for the electric fan?
My next step is to replace the thermostat (but I do not think that is the issue).
Can anyone help please.
Thank you
Bob
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