got a 2002 ford explorer xlt, it has 179,000 miles. I changed the thermostat and housing was fine for a week but now its overheating again. no leaks but the coolant seems to be disappearing. why??

Asked by Jul 17, 2015 at 06:17 PM about the 2002 Ford Explorer XLT 4WD

Question type: Maintenance & Repair

overheats when not moving, no air flow.
only had one gallon of coolant when I
changed the parts and I had to drive to get
more, could that be a problem driving it half
full after changing the thermostat and
housing?

1 Answer

41,195

You may have a bad radiator cap. Try replacing with a new one. Are your cooling fans kicking on when the engine gets up to temperature? If they are not working, that will do it also.

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