The lights stays "on" after start up, sometimes for a few minutes, sometimes
for over an hours. Coolant level ok in overflow tank,
I am assuming the sensor is b/o, but where it is located ? in the tank, in
the rad ??
Any other thing to check ? What is the value of a good sensor ( Ohms) Or
how can I make sure that its the sensor and not something else, eg wiring ?