old_skool

why does my coolant light randomly come on?

Naegleria_Fowleri

Low on coolant? Maybe the radiator cap needs changed? Maybe the sensor is going bad. There are a lot of reasons. You'll have to become a tad bit more specific as to what is happening with it other than "Randomly come on" if you are wanting a specific answer.

old_skool

i wish i could be more specific. it just randomly comes on when im driving, and goes back off randomly. the coolant is full, and the cap is fairly new. im at a loss on this one.

trochoid

iTrader: (6)

Sounds like a bubble in the cooling system. Take the radiator cap off, cold engine, start and run until it is up to operating temp and see it it will take a little more coolant mix. If not, check the wiring, starting at the sensor.