Coolant light keeps coming on

[NO SHAM3]

My coolant light turns on after driving a couple minutes. The coolant level is good and the car does not overheat. Coolant temp doesn't even reach the half way mark. My only guess is the thermostat stuck open, but not sure. Has anyone ever had this problem?

[MR 325]

The coolant light has nothing to do with the thermostat...

It's attached to a level sender on the expansion tank. They fail all the time.

[StereoInstaller1]

He forgot to tell you to replace the sensor

[E30Gus]

While you're under there..........Smoke test!

[Ceeker]

My coolant light turns on after driving a couple minutes. The coolant level is good and the car does not overheat. Coolant temp doesn't even reach the half way mark. My only guess is the thermostat stuck open, but not sure. Has anyone ever had this problem?

change your coolant level sensor; the light should go out. common problem as noted above.

[MR 325]

He forgot to tell you to replace the sensor

I never usually get to that step, haha!

[NO SHAM3]

Thanks guys. I'll replace that this weekend

[RONZEASy]

I have the same problem only my coolant sensor isnt connected to the harness... Having trouble locating the plugs can someone help please :)

[dnguyen1963]

remove the sensor and clean it. You do not need to buy a new one. There is normally a lot of buid-up on the electrode preventing the electrons from moving...similar to low coolant level.