Pontiac Repair Questions? Ask a Mechanic for Answers ASAP
Hello & welcome,
Can you tell us a little more about the issue your are having?
What cooling sensor are you referring to?
I just did a little checking and the manual says that the cooling fans are not supposed to come on until the temperature goes to about 223 degrees (F). This is for the Low speed setting when both fans are ON. If the temperature gets to about 230 degrees, then both fans should be on at high speed.
I can send you the system schematic if that would help. Just let me know.
Hi again - Sorry for the delay.
Here is the schematic for the cooling fans.
As you can tell, the fans are controlled by a few relays and there are a couple of fuses involved too. The PCM is what controls the relays, based on the engine coolant temperature sensor. I believe if the temperature gauge is working inside the vehicle, then the temperature sensor should be OK. But I have included the diagram of the temperature sensor below, just so you will know where it is.
I hope this helps. Please let me know if I can send you more information.
Take Care, Greg A.