Question about 1991 Jeep Cherokee Briarwood
2000 jeep grand Cherokee: The engine is overheating. The problem started after have the oil change last week. Never had any issues with it before. 82k miles
First, check that your oil level is full. Though it should not cause an overheat, oil does serve as part of the cooling system... Changing the oil should not have much to do with an overheating problem unless inadvertently the radiator, a hose or the cooling fans got damaged. Carefully check everything for leaks, make sure the cooling fans come on when hot.
After checking those things you will need to check the thermostat and the radiator for proper operation. If you do not have a blown head gasket one of these items are causing your problem. Before you ask...the water pump will work even when the seals are leaking or the shaft bearings are bad. If either of those two conditions exist the pump should be changed, otherwise it is not causing your problem.
Posted on Jul 15, 2009
I had this same problem and mine was a relay. I also have a 2000 grand cherokee and it is located behind the passenger side headlight. You have to pull out the headlight and then cut a hole in the plastic to get to it. It is just a little square one. About 1 inch by 1 inch. It actually sits on the inside of the fender but too high to reach from below. They only cost about $50 at the parts stores. You can give that a try. It worked for mine. Hope this gives you another option to look at.
Posted on Oct 25, 2009
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Posted on Jan 02, 2017
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