my 2001 ford windstar is still overheating even though i changed out the thermostat. what could it be?
Is your fan coming on?
are the cooling fans coming on
Year, make and model would help us help you.
possiable head gasket
have a blown head gasket is my guess
Inoperative radiator fans, bad water pump, failed headgasket?
Could be a collapsed lower radiator hose, perhaps a bad thermostat.
After 10 years radiator may be plugged or restricted - try to flush or boil out May need replacement
Have flushed complete cooling system replaced water pump radiator thermostat clutch fan added 2gal straight anti freeze then filled to capacity with water and truck is still over heating. What else could possibly be wrong
A thermostat is one cause of over heating engines.The "Related Question" below lists a few other suspects to investigate that can also contribute to overheating.
My 2000 would overheat at idle; in park & slow traffic. Ran normal on the highway. I 1st replaced the fan relay everyone has been blogging about, engine still overheated. Next attempt for victory, I replaced the temp sensor switch; defeated again. I then replaced the thermostat & haven't had a overheating incident since.
radiator fan, head gasket,
i have replace the thermostat, checked the fans,filled with water and it is still overheating. Very often, the waterpump leaks and stops working only years after it was last replaced. Coolant is probably not flowing from the engine to the radiator to be cooled.
Has the rad ever been flushed? Try that if there is no indication of water pump failure (leaking or venting coolant from pump.)
Either the water pump impeller is loose on it's shaft, or you have a leaking head gasket.
If you have replaced the water pump then flush the radiator with CLR also check to see if the fan is working properly.
My 2001 Nissan frontier 3.3 v6 engine is overheating. I changed the thermostat but it still overheats.
The top radiator hose is above the thermostat. If the top radiator hose is hot, the thermostat is opening. The thermostat is not the problem. Perhaps the radiator is clogged up or the water pump is bad. Look elsewhere.
alot of times you can get an air pocket behind your thermostat there is a little trick to make sure this doesn't happen take a 1/8 drill bitt and drill a hole it the flat surface of the thermostat about center from the edge and the edge of plunger on thermostat and this will allow any air from behind it to excape and will not cause any probs with thermostat. good luck hope this takes care of prob......
It could be a clogged radiator or cracked head or bad head gasket.
could be the water pump That is a typical symptom of an air lock in the cooling system
If you replaced the head gaskets, thermostat, and the water pump and it is still overheating then I would ask about the fan. If it is not the fan, then I would say that you have at least one bad head, if not two. But that is just a guess. A mechanic will pressure test the system and will be able to tell you more. Is the radiator restricted?
Did you check the thermostat to make sure it is working? If it is and you have enough coolant, you might want to check for head gasket issue. You can rent a tester at Autozone. HTH