Heater Blower
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Senior User
Joined: Mar 2004
Posts: 198
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From: Rocky Point, North Carol
Heater Blower
I have been rebuilding a 77 F150, and the other night I tried to turn the vent on, and I got a puff of smoke from un the center of the dash, but no fan. When I flip the switch, I can hear the relay click to actuate the heat, and I checked, and the relay has 12 volts coming off of it when I turn it on. The truck sat outside for a long time before I resurrected it, so I'm guessing the blower motor is froze up. Does anyone have any suggestions or tricks on changing the motor? I know it's going to be a large pain in the butt.
Post Fiend
Joined: Feb 2000
Posts: 11,496
Likes: 6
From: Kansas
A 77 shouldn't be too hard. I believe it's behind the right front wheel well. A manual will show you where to cut so that you can access it. That puff of smoke make be a short in a relay connection. Be sure and check the blower before you remove it.
Postmaster
Joined: Apr 2000
Posts: 2,838
Likes: 6
From: SD
Does it have factory a/c? If so, follow the steps in the heater core tech article - link at top right of page. If no a/c, then it's a little easier. Be sure to test the motor for power before removing it. Hate to see you go to all that work for nothing.
Marty
Marty
