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Low coolant light staying on

11K views 12 replies 8 participants last post by  35th GT 
#1 ·
It's full of coolant, not running hot or doing anything abnormal. The light is just kind of annoying. Anyway of clearing this myself? The only weird thing is after I take a long trip say if the car has been driven for a hour straight when I get out I can hear the cap sizzling. But nothing is leaking and the coolant is staying full. This is a 99 GT
 
#2 ·
Mine only comes on when the reservoir tank is low, the tank will be low and the radiator will be full on mine and the light will come on. I fill the tank above the cold line and the light goes off.. I don't know any other way to 'clear' the light.
 
#7 ·
Look inside of the reservoir. You should be able to see the sensor. It probably is covered in some type of slim/rust. Causing your coolant light to stay on. Try clean it out. Maybe able to get enough out to get it working right. If not you will need another reservoir.
 
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