Thread: Where the radiator fan switch? (need trouble shooting help)

There isn't a fan switch. The closest thing you' have is a temp sensor. How do you know the fans aren't working, please give us more details so we know what you are working through.

Because..the pcm won't request the fans to turn on unless the temp hits ~216F or ~228F for high speed. Or.. if you turn on the ac.

Originally Posted by BillBoost37

There isn't a fan switch. The closest thing you' have is a temp sensor. How do you know the fans aren't working, please give us more details so we know what you are working through.

Because..the pcm won't request the fans to turn on unless the temp hits ~216F or ~228F for high speed. Or.. if you turn on the ac.

It was going to the line where u see the the F looking thing in water. I connected a test lead to fans and it worked. I found out it was a short that was blowing a fuse over and over and I moved the expose wire touching the car out of the way and replaced the fuse. Now My fans are working. Going fix the exposed wire with electrical tape.

Ahhhh FWIW the F and water looking thing.. I have no idea what you are describing as I drive a Regal, had a Bonneville and have spent almost no time lookiing at GP dash.

Originally Posted by BillBoost37

Ahhhh FWIW the F and water looking thing.. I have no idea what you are describing as I drive a Regal, had a Bonneville and have spent almost no time lookiing at GP dash.

lol here a pic of the logo

On my GP, one of the lines before the red has that logo next to to it, and that how hot it was getting. The logo is located few lines above the 210F degrees mark. I found out later there no radior fan switch for the GP just thermostat. I fixed the problem since OP, it was a short that was blowing fuse #21 IGN-1UH.

Note: the pic not from my GP, my mom took my GP atm, since her car having issues right now so not able to take a pic atm since it not here right now.