Blower Switch Problem
Thread Starter
Melting Slicks
Joined: Jul 2006
Posts: 2,346
Likes: 41
From: Toronto
Blower Switch Problem
The blower switch on my 71 (with a/c) only works at the third speed.
The others do nothing
How do I go about troubleshooting this, or is it most likely that I just need a new switch?
If a new switch is the answer, where is the best place to get one?
Thanks
The others do nothing
How do I go about troubleshooting this, or is it most likely that I just need a new switch?
If a new switch is the answer, where is the best place to get one?
Thanks
Racer
Joined: Mar 2006
Posts: 366
Likes: 1
From: Houston Texas
Could be the switch, could be the speed control resistors or could be the hi speed relay. I have a 76 and do not know the detail for a 71, but I believe these are the 3 components in the circuit .
A wiring diagram and VOM should help you track it down.
A wiring diagram and VOM should help you track it down.
Le Mans Master
Joined: Jan 2006
Posts: 9,192
Likes: 27
From: Boca Raton Florida
Jake, there is a High Speed fuse, inline type over by the alt, it may have blown.
HZZ, if you pull the resistor pack, its located in the top of the AC box under the hood, you should be ablt to tell if they are burned or possibly disconnected.
HZZ, if you pull the resistor pack, its located in the top of the AC box under the hood, you should be ablt to tell if they are burned or possibly disconnected.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,116
From: Crossville TN
If the switch is the problem, you may be able to salvage it. Mine was getting very warm when it did work, but at times the blower wouldn't run. Turned out that the switch contacts were gummed up and put some resistance in the circuit. I removed the switch; straightened the crimped tabs on the housing; carefully removed the "guts" (so I would know how they went back together; cleaned everything up and buffed up the contacts; reassembled. It's good as new and works great. Obviously, you can buy a new one (aftermarket) for $20....but I'd rather keep the original if I can. Good luck!
