when my car heats up the heater dont work. makes me think the pump is not working or the thermostat is stuck. (the thermostat is 500 miles old). i have intermitant overheating. between 242 and 214 normally then the guage will suddenlly peg out every couple 3 days
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2000 Lincoln LS Question: how do i change the water pump on my 2006 ls?
Answer #1patrick mannion from Greg Solow's Engine Room, February 15, 2012, 00:49Master
Maybe first have a chemical test known as a "block test" done, it looks for the presence of carbon monoxide in the cooling system which would only be present if the head gasket was blown or mildly blown. The Jaguar 4.0L engine similar to your engine did have water pump impeller failure. Call the Ford parts department ask them do they sell many water pumps for that year/model.
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