Why does my coolant temperature gauge show overheating?

Answer by  Wrenchman (638)

There might be a blockage somewhere, or it might be some other problem with the engine like a head gasket or not enough oil. Have your dealership look at it.

Answer by  mdt2t (57)

Your thermostat is probably stuck in the closed position. This keeps the hot coolant from being passed into the radiator to cool down. It could also be a pressurization problem with your coolant system. Have the radiator pressure checked to see if there is a leak in pressurization. Sometimes it is just a radiator cap that needs to be replaced.

Answer by  carguru (20)

Your coolant temperature gage may show that you are overheating for a few reasons. 1) Your thermostat could be malfunctioning/broken 2) There might be corrosion built up on your radiator 3) There might not be enough coolant in the radiator 4) A radiator hose might be cracked/worn causing flow/pressure issues

Answer by  Allstar (2071)

It could be a problem with the thermostat. If the thermostat is jammed closed, coolant can't get to the radiator and the engine overheats. Have the system flushed and have the thermostat replaced. If it's still showing an overheat, you have a bigger problem than the cooling system. Make sure it has plenty of oil.

Answer by  MaryL (117)

It is very well possible that your sensor you replaced was defective. It happens. Take off the old sesor and replace with a new one.

Answer by  Gaur (7676)

Fact that has resulted in untold numbers of V12's being scrapped and replaced with Chevy engines and the like. the importance, this page has been created to inform owners.