Question about 2005 Ford Mustang
My coolant boils over after driving. My guage reads normal, My Fan will not kick on unless I turn on the AC unit. It does not feel as though there is much liquid in the hoses but the overflow is topped off. I replaced the temp sending unit and thermostat. I checked the fuse and relay switches for the fan and they are ok. I turned on the heater and the air is cold and will not warm up. Is it possibly a water pump issue? Tom
By disconnecting the sensor you send the cooling fan into safe which turns it on, this quickly eleminats all the fan parts, if it still overheats check for leaks, really doubt the water pump is the problem, they just seem to last forever on this engine, but you may have a leak, top the cooling system with 60/40 mix of coolant, and the coolant recovery tank and see if the overheating stops, it it does have the system pressure tested for leaks by a shop, cost will be maybe $50, this is a small price to pay to save the engine from the severe damage that overheating causes the newer aluminum heads, a $1000 plus repair job at the least.
Posted on Sep 04, 2009
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Posted on Jan 02, 2017
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