I have a condition where the low coolant level light is coming on but the levels are good - hot and cold - and I can detect no leaks.
I checked the oil and there is no coolant in the crankcase, and seals have been replaced previously (which is a long term problem with this engine due to seal degredation from DEXCOOL antifreeze.)
The condition is only apparent after approximately 10 minutes of 55mph + driving on the interstate. Light will then stay on until the car comes to a stop at which time it turns off.
I suspect a faulty sensor but was curious of any other opinions before I pursue that route.
Monday, October 1st, 2018 AT 9:59 AM