Here is the problem I have a 2001 rs 3.8v6 I have changed the temp sending unit/sensor and all 3 of the fan relay's and the fan's keep running.the ac is off the defrost is off and the gauge will not rise either now when you start the car the gauge needle jumps but will not rise when the car warms up and the fan's come on about 45 seconds after starting the car and will not stop until I turn the car off.what else is there to check or change?all ideas welcome!

 

relays in backwards,blockage,are you getting heat in the car?

 

Check that no codes have been set. Certain codes will cause the fan to stay on in order to protect the engine.

 

Relay's are in correctly ,and,yes the heat works.would it have codes without the check engine light being on?