fan speed
Thread Starter
Heel & Toe
Joined: Jun 2011
Posts: 24
Likes: 0
fan speed
1975 coup anyone know why my ac heater fan switch will not go to high speed? It starts at low , goes to medium , then goes to next speed but when it push it all the way to the right , on more click shuts off. I have changed the resister, the relay , and change the fan motor and squirrel cage. What else is there?
Le Mans Master
Joined: Aug 2006
Posts: 7,431
Likes: 1,562
From: mount holly NC
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2019 C3 of Year Finalist (appearance mods)
Is 75 the same as 74?
You might have a bad inline fuse. Look under the left fender near the M/C.
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
The blue wire at the relay needs to be hot when the fan is on high AND the relay case needs to be grounded.
