I have replaced Everything and Still Overheating
10-11-2010, 06:31 PM
#1
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Year: 1994
Model: Cherokee
Engine: Inline 6
I have replaced Everything and Still Overheating
Please help! I have replace Thermostat, water pump, Radiator, fan clutch, Flushed the heater core and replaced the Heater control valve. My 94 Jeep Cherokee Country is still overheating. I'm planning to try and see if there are any air pockets tonight, but i wanted to see if anybody else has some ideas. Oh and my When i put the heater on all the way it blows cold air.
Thanks.
Thanks.
10-14-2010, 09:13 AM
#3
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Year: 1994
Model: Cherokee
Engine: Inline 6
OK so i burped the system last night and thought i got all the air out of the system, but when i drove the Jeep this morning it overheated. How many times do you burp the system? Also would it be a good idea to take out the thermostat and drill a hole in it to let the air through?
10-14-2010, 09:40 AM
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Just making sure but when you say overheating is it redlining on the temp? or is it just higher that you are used too. I'd hate to have you waste all your time and money bc it is sitting at 210 and not above ya know. Just making sure.
10-14-2010, 10:34 AM
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Year: 1994
Model: Cherokee
Engine: Inline 6
Its goes to the red. Last night when i burped the system it stay right around 210 and was fine for like 30 or 40 mins. I drove the jeep home left it over night and this morning while driving it went to red again. I touch the upper hose and the radiator and both were cold. So i figure it still has air pockets in the system.
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10-14-2010, 10:44 AM
#8
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Year: 1995
Model: Cherokee
Engine: 4.0 I6
That has nothing to do with whats happening. 
Did you have enough 50/50 in the system? Filled rad AND reservior? Check for leaks, is your coolant getting hot? If its not this may be a sign of a bad clog. Are you getting any white smoke from anywhere? Might be the head gasket.
Leave the radiator cap off and the heater at full hot with the fan on low speed and add water/coolant mixture to the system until it starts to overlfow. Make sure the overflow tank is full to the line, then cap the radiator and shut off the engine. Let it cool for a few hours and then re-check it. Add coolant if necessary.
Its goes to the red. Last night when i burped the system it stay right around 210 and was fine for like 30 or 40 mins. I drove the jeep home left it over night and this morning while driving it went to red again. I touch the upper hose and the radiator and both were cold. So i figure it still has air pockets in the system.
Did you have enough 50/50 in the system? Filled rad AND reservior? Check for leaks, is your coolant getting hot? If its not this may be a sign of a bad clog. Are you getting any white smoke from anywhere? Might be the head gasket.
Leave the radiator cap off and the heater at full hot with the fan on low speed and add water/coolant mixture to the system until it starts to overlfow. Make sure the overflow tank is full to the line, then cap the radiator and shut off the engine. Let it cool for a few hours and then re-check it. Add coolant if necessary.
10-14-2010, 11:18 AM
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Model: Cherokee
That has nothing to do with whats happening.
Did you have enough 50/50 in the system? Filled rad AND reservior? Check for leaks, is your coolant getting hot? If its not this may be a sign of a bad clog. Are you getting any white smoke from anywhere? Might be the head gasket.
Leave the radiator cap off and the heater at full hot with the fan on low speed and add water/coolant mixture to the system until it starts to overlfow. Make sure the overflow tank is full to the line, then cap the radiator and shut off the engine. Let it cool for a few hours and then re-check it. Add coolant if necessary.
Did you have enough 50/50 in the system? Filled rad AND reservior? Check for leaks, is your coolant getting hot? If its not this may be a sign of a bad clog. Are you getting any white smoke from anywhere? Might be the head gasket.
Leave the radiator cap off and the heater at full hot with the fan on low speed and add water/coolant mixture to the system until it starts to overlfow. Make sure the overflow tank is full to the line, then cap the radiator and shut off the engine. Let it cool for a few hours and then re-check it. Add coolant if necessary.
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