The cooling fan on the radiator takes too long to turn On even when the engine temp reaches 240 Deg. I realize it could be the temp sensor underneath the thermostat housing. The setting for this sensor is off by design, ie, fan always comes On late even if I replace it.

I would like to install a switch where I can switch the fans ON anytine I want, hopefully I will not forget to do so when required, but I would like to have control, as the present control causes the car to run hot. There are three wires to the sensor, does anyone know what wires I can jumper, so I may run a switch to the compt. Has anyone done it. Or what can be a possible fix for the high temp operation on this engine. 3.8 SSE standard.

The cooling fan on the radiator takes too long to turn On even when the engine temp reaches 240 Deg. I realize it could be the temp sensor underneath the thermostat housing. The setting for this sensor is off by design, ie, fan always comes On late even if I replace it.

I would like to install a switch where I can switch the fans ON anytine I want, hopefully I will not forget to do so when required, but I would like to have control, as the present control causes the car to run hot. There are three wires to the sensor, does anyone know what wires I can jumper, so I may run a switch to the compt. Has anyone done it. Or what can be a possible fix for the high temp operation on this engine. 3.8 SSE standard.

Mine did the same when I set a few minutes at idle. I had it in the dealer for service and ask about it and was told it was a faulty gauge. That was about a year ago. I recently replaced the thermostat and now my gauge only goes as far as 220. Try replacing it.