Hi y'all. My 72 cutlass supreme for some reason every time i floor the gas the blower fan turns off by itself. The AC fan switch still has the "on" light ignited but the fan is off. I have vintage air fan switch installed, and also for some reason once i turn it off it won't go back on again. So either i have to start the car with AC or i have to drive without AC. Driving without AC doesn't really work for me in Houston...Any ideas?

 

I would check with Vintage Air since that is the system you have on the car.

 

Yeah, start by telling us EXACTLY the configuration of your A/C system. Is it stock or Vintage Air, and if aftermarket, which one? Kind of hard to provide useful info without knowing that first.