My overhead console temp gauge has stopped working. I am fairly confident that it is the sensor. I would like to change it myself if I am able to do so, but I need some help in locating it. I have a 99 Cummings 3500 Quad cab. Can anyone get me started in the right direction in locating the sensor. And any suggestions in changing it out. TIA

 

I am pretty sure the sensor is located on the passenger side of the grill. Sorry, but I can't find a diagram to help you out a little more.

 

Temp sensor on the third gen's is on the drivers side headlight mount. Bottom left corner when looking at it from the front. You could check there.

 

Thanks that gives me a couple places to start looking. I will check it and post if and where I find it.

 

Yea its behind the grill on the radiator support. Fairly easy to locate