Pontiac Problems? Ask a Mechanic for Answers ASAP
Hello I will help,
I don't know if I can get to the bottom of this but I do need further data to get to an understanding of what is happening.
What are the pressures you see on the scantool vs the pressure you see on the gauge?
Same for the ECT?
Most systems run the fans on high speeds until the last few years when they dialed them back to save on gas.
Let me know and I will help you as I can.