unscrew old unit screw in new unit.
Likely a faulty coolant temperature sensor. Change the sensor.
this is normal,because the coolant temp sensor is supposed to be in direct contact with the cooling fluid in order to read its temperature
p0128-- coolant temperature below thermotat regulating temperature---change thermostat first, and make sure coolant is ok!! then if it does not work. change coolant temperature sensor.
The guage on the dash uses the ONE wire sensor... This is located in the block near the drivers side. Eric First check to see if you have coolant in the radiator. If there is no coolant you will not get any reading from the temperature sensor. If there is coolant then change the temperature sensor.
Driver side behind alternator. You must remove alternator to change it
Drain off about 2 qts of coolant from radiator petcock after engine has cooled. Unplug wire harness from sensor. Remove sensor with a counterclockwise motion. Coat new sensor with a thread sealant and install until snug. Reconnect harness and refill coolant reservoir. Recheck coolant level after useage.
the sensor is on the the thermostat housing, youll see one on top(fan sensor)the other is underneath the housing.the housing will have to be removed to change it
It's probably not bad, all those screens flash coolant temp sensor & there is no issue. Your chasing a ghost
Detach the wire and unscrew the sensor.
how to change air temperature sensor on astra 2003 how to change air temperature sensor on astra 2003
The sensor is on the right hand side of the engine.Two screws hold it in place,5 minutes changes the whole thing.
the temperature sensor is located beside the end of top radiator hose on engine block, to change, drain a little coolant out, unhook wire to sensor then unscrew sensor from block, when putting on put thread tape on threads to keep it from leaking when tight. do not forget to refill coolant,