turn on AC coolant temp light comes on on 1990 Cadillac DeVille

...when turn AC off the light turns off....its a 87 cadillac deville...

by in Phoenix, AZ on April 12, 2012
1 answer 2 comments
ANSWER by on April 13, 2012
when you turn a/c on how long b4 the coolant temp light comes on?
COMMENT by on April 13, 2012
..about ten minutes
COMMENT by on April 13, 2012
have you ck'd your coolant level. maybe the car is starting to overheat or the a/c cooling fan is not working properly