Replace the coolant temp sensor.
Next to the thermostat housing.
Probably a bad thermostat.
I have a 1998 Pontiac Grand AM GT that coolant sensor went bad. So how do you change it with out breaking the coolant
Where is the coolant temp sensor on the 1998 gmc safari awd
The coolant temp sensor screws into the thermostat housing. This is located where the top radiator hose connects to the engine.
The coolant temp sensor is located between number 3 & 5 spark plugs on the drivers side cylinder head.
Yes it sure can.
Usually on the coolant outlet just before the upper radiator hose.
coolant temp sensor,does just what it says,it relays your coolant temp to gauges!
Try replacing coolant temp sensor.
under the altneter