I hav replaced the 4 speed blower switch on the dash. MY A/C does work
My car has 150000 miles.
My car has an automatic transmission.
Hello there, a few common faults can cause your 1972 Oldsmobile Cutlass to only work on the #2 speed air flow. You are correct, the blower motor resistor could cause this fault. Other likely causes would be the fan control switch, blower motor, or a wiring harness fault. A qualified technician, such as one from YourMechanic, will be able to diagnose your air flow issues and move forward with any repairs required.
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing