|
08-25-2011, 01:48 AM
|
#1 |
|
Registered User
Join Date: Jul 2008
Location: Concord, CA
Posts: 194
|
Heater blower
I have a 72 AC Blazer. The other day, I noticed that the fan motor was slowing down and speeding up. The switch was set at high. The next day, no fan at all. Where do I look first? This is an AC cab, but the AC part is not funtioning at the moment. I was just running the fan.
Last edited by givengold; 08-25-2011 at 01:53 AM. |
|
|
|
08-25-2011, 10:26 AM
|
#2 |
|
Registered User
Join Date: Aug 2011
Location: shawnee, kansas
Posts: 13
|
Re: Heater blower
Check the ground first.
|
|
|
|
|
08-25-2011, 11:16 AM
|
#3 |
|
Registered User
 Join Date: Nov 2007
Location: Hermiston, OR
Posts: 947
|
Re: Heater blower
Does it do the same on the other speeds?
__________________
Running in place gets you nowhere fast. -me 1968 GTO 4-spd covnvertible 1970 K-20 4-speed, factory AC. |
|
|
|
|
08-25-2011, 01:11 PM
|
#4 |
|
Registered User
Join Date: Nov 2007
Location: Turlock California 95380
Posts: 2,075
|
Re: Heater blower
 Check the ground strap, clean it up while youre at it. Check the harness/connector at the motor to make sure it is getting battery voltage. Also check out the resistor pack behind the glove box. I had one that had surface rust causing low speed to not work... Hope this helps
__________________
72 C20 Longbed 05 1500 Z71 |
|
|
|
 |
| Bookmarks |
|
|
Linear Mode
