Originally Posted by bil
my 89 sse was doing the same when i first got it. if memory serves, the coolant sensor is about halfway down the left side of the rad(when you are facing the car). i put a new one in. it only cost a couple bucks from the dealer. haven't had a problem in the 20,000 miles + since. hope that helps!
Been there, done that also. Back in 2004.
Replaced the sensor, & the low coolant light went away.
Just buy the sensor at your local parts store.
Cheap fix at home if you have the tools.