T660 Coolant Light on

[Oil Slick]

(03-14-2018 )Rawze Wrote:  I am an advocate of fixing the problem correctly instead.

When is the last time the coolant was flushed and replaced? What kind of coolant? How old is sensor?

360,000 on odometer. 10,000 miles ago the cooling system was flushed and pressure tested overnight at the Cummins shop and refilled with red coolant. Not sure if sensor has ever been replaced. I agree on fixing it correct but would like to wait till I get home to repair it. The beeping alarm is driving me nuts.