weekndz

my ac fan switch does not change fan speed. don't even have high speed. Changed resistor piece. What to check next?

xrav22

I cant say what year you have but if you have no fan and changed the resistor, you may have a failed blower fan. If the resistor fails it usually defaults to high.
That is assuming it was working and now it isn't.
Good luck

Billymac

Thank you!!!

Hot Rod Roy

Gotta know what year!! Automatic a/c, or manual? If it's an early C4, I'm going to guess it's a bad relay. Probably located below your a/c - heater fan motor, but we need to know the year!!

FOURSPEEDVETTE

I just had this same problem on my 85. I replaced the blower motor resistor and the problem remained. I then replaced the blower motor relay and the problem was fixed. All fan speed positions work correctly now..