Problem fixed. I changed the rad cap.
have you changed the battery in the thermostat?
The thermostat and reservoir will have nothing to do with this situation since you have (ATC) Automatic Temperature Control and you most likely will have a bad sensor or control head, its best to have the (ATC) unit scanned for all issues........
It sounds like you have a blown head gasket. Combustion gases can enter the cooling system through either a blown head gasket or cracked cylinder head. The gases (under pressure) force coolant out of the reservoir. This also causes a void in the upper part of the cooling system , leaving no coolant at the thermostat and the coolant temperature sending unit. The result is a erroneous temperature Reading and will even prevent the thermostat from opening.
You may have the thermostat in backwards. The spring side of the thermostat faces into the engine.
it is a hyndai that's why it is a hyndai that's why
The thermostat is not opening up enough,
You have to install the thermostat with the jiggle valve in the 12 o'clock position.
You could have a bad thermostat, just because its new doesn't mean its good, TRUST ME ON THAT, or you could possible have an air pocket in the cooling system.
The thermostat is inside of the water inlet on top of the motor. Disconnect the top water hose, then unbolt the water inlet. The thermostat can then be changed.
The thermostat on a 2004 Chevy Venture is changed by draining the radiator, removing the upper radiator hose, and unbolting the thermostat housing. The old thermostat and gasket can then be removed and replaced.
The thermostat on a Chrysler PT Cruiser is changed by disconnecting the upper radiator hose, unbolting the thermostat housing, and removing the thermostat. A new unit can then be put in place and reattached.
Change your fuel filter. It's in the back by the gas tank. It's about 2" in diameter and about 2
If the radiator or reservoir cap is bad it could cause overheating because the system will not build up the proper pressure. Also the fan clutch could be worn out which would keep the fan from spinning fast enough to cool the radiator.
Change your thermostat.
short in the wiring
Do not drive it until the fluid is changed.
Instantly. If someone is telling you otherwise, they're blowing smoke.
Your thermostat is probably stuck open - quite common - had to have my thermostat changed for the same reason (Helpfull)
Type your answer here... IF WE CHANGED ONLY COOLING FAN THEN IT WILL BE OVERHEAT BECAUSE WE DON'T CHANGE OR FLUSHING OF RADIATOR. WE CAN REMOVE THERMOSTAT VALVE ALSO MAY BE HOSE PIPE WILL BE BEND
When 1990 Honda is running cooling fan does not come on but comes on when engine is off and I thermostat and temperature switch changed?"
The thermostat on a 99 Mitsubishi Galant is changed by draining the coolant, removing the upper radiator hose, and unbolting the housing. The thermostat can then be removed and a new one put into place.
flush the system and change thermostat,this should fix problem. I flushed mine and i changed coolant and thermostat,it is now fine.
check or replace thermostat