Look for the obvious ie check wiring to temp sender and sender is ok, water leaks even at the back of the eng bay also heater radiator which is located inside the car, if all is ok check that thermostat is opening at correct temp (remove to check when eng is cold) if opening at correct temp the next thing is your eng block & radiator could be partially blocked if so then the radiator should be removed for specialist repair and clean block appropriately, and last but not least if all the above is ok then the problem lies internally ---- headgasket, cracked head even cracked block ---- good luck
my 2001 ford windstar is still overheating even though i changed out the thermostat. what could it be?
It could just be that the water pump is not properly working. Have you checked all the could-be causes for your car overheating if not then do so.
Inoperative radiator fans, bad water pump, failed headgasket?
It could be but most likely the engine is overheating. Could also be that the cap is not holding pressure and needs to be replaced.
Could be a collapsed lower radiator hose, perhaps a bad thermostat.
It might the thermostat stuck close or the water pump does not work and has to replaced.
Could be the head gasket. Very common problem with this engine and model year Windstar.
Overheating the engine shouldn't effect the transmission. Overheating the transmission could.
try your thermostat
the radiator was replaced and the fluids are still evaporating or leaking out somehow. what other options could be wrong with the car overheating?
It could be a clogged radiator or cracked head or bad head gasket.
where is the engine number on a 1999 ford festiva