1999 olds cutlass I am only owner . while driving at all speeds and conditions the air cond will shut off and not cycle back on. If I hit,tap or push on temp control it will come back on also low fan speed (position 1 and 2) does not work.
You might need a resistor network for the blower motor.
Does the blower motor cut out?
Or is the AC compressor disengaging?
Blower stays on but blows hot air.
The problem is probably with the AC/Heater controller. Inside the controller are the following.
*Defroster Control Logic
*Air Temperature Control Logic
*AC Request Logic
*Blower Speed Control Logic.