Car Questions
RepairPal is your advocate for car care advice and guidance


(1999 Pontiac Grand Prix)
in Atlanta, GA on June 20, 2011
.....low coolant light keeps flashing on and off, the radiator Is full of fluid?
Displaying 2 answers & 5 comments
Popular Answer
on June 20, 2011
Have you checked the coolant reservoir tank?
Sign in to reply
on June 20, 2011
.....yes, It is filled. I've read that the sensor switch may need replacing?
on June 21, 2011
It's possible. Is the flashing of the light constant and rhythmic or is it randomly on and off with no pattern?
on June 21, 2011
.....on and off with no pattern.
on June 22, 2011
Then it is likely due to a faulty sensor indeed.
on November 19, 2011
.....yes, It Is filled. but I think there maybe a very slow leak?
on November 19, 2011
i am working on the same thing. I pulled the pig tail off and jumped it and the light went out. i am going to pull and replace sensor just to be safe.
Sign in to reply
Get a repair estimate
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide.
Or interested in getting a repair? Find a Shop

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
I just had a coolant hose replaced on friday last week when i picked my car up and drove off i got a warning sign te...
Overheating after waterpump, thermostat replaced, radiator and engine flushed. no water flow from radiator to engine ...
Didn't find what you were looking for?