HAVE A 2005 JEEP LIBERTY 3

2005 Jeep Liberty

Tiny

Anonymous

October, 26, 2012 AT 8:36 PM

Have a 2005 jeep liberty 3.7, air, four wheel drive. Is overheating. Changed thermostat and fan motor. Using zerex G 05 in it. It still is overheating, do you have any ideal what could be wrong still? We cant afford to keep parting it out.

FOUND 13549 RELATED QUESTIONS

1 Answer

Tiny

caradiodoc

October, 26, 2012 AT 8:57 PM

You've figured out that throwing random parts at it is more expensive than having it diagnosed by a mechanic. The thermostat is the last thing to consider. If the heater is blowing cool air, have the head gasket checked for leakage. Combustion gases pooling under the thermostat will keep it from opening. They need to be hit with hot liquid to open. You will also feel the upper radiator hose is not real hot. If it IS too hot to hold onto for very long, check if the fan is turning on. If it is not, you must determine if the Engine Computer is not turning on the fan relay or if there's an electrical problem in the relay circuit. When the fan doesn't turn on the heater will blow very hot air, and it will not overheat while driving at highway speed.

Please login or register to post a reply.

Thermostat Replacement Chrysler PT Cruiser
Radiator Replacement Mercedes Benz ML 500
Thermostat Replacement Mercedes Benz C230