Blower motor issues
Thread Starter
|
New User
Joined: Jul 2018
Posts: 6
Likes: 0
Blower motor issues
Ok y’all need some help. I have a 78 f150 4x4 that the blower motor ain’t working. I changed the resistor to no affect now thinking it’s the relay for the blower motor but I can’t find the damn thing. Any help would be greatly appreciated.
Grumpy goat
Joined: May 2017
Posts: 3,058
Likes: 596
You have AC, or just heat? Mine is heat only. Just a 35 amp fuse. I had problems with mine and finally figured out the fuse socket had gotten sloppy loose. I've never really fixed it. It's kind of a Fonzy fix...Instead of hitting the juke box, I slam the clutch to the firewall and the blower starts working again. No Charge
Cargo Master
Joined: Jul 2005
Posts: 2,313
Likes: 367
From: Kansas
there is no blower motor relay on your truck. as previously mentioned, make sure you have power making it through the fuse...then to the AC mode switch...once you move the ac lever from off, it should send 12 volts to the fan speed switch...from there, the power goes to the resistor....then on to the motor (with the exception of high, then the blower resistor is completely bypassed...
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 787
From: Simi Valley, CA
THREE different types of A/C for 1973/79 F100/350 & 1978/79 Bronco: Factory installed A/C; Deluxe dealer installed A/C; Economy dealer installed A/C
Factory installed integral A/C is combined with the heater, the A/C controls are in the same panel as the heater controls.
HUGE evaporator case located at the right rear corner of the engine compartment.
Thread Starter
|
New User
Joined: Jul 2018
Posts: 6
Likes: 0
THREE different types of A/C for 1973/79 F100/350 & 1978/79 Bronco: Factory installed A/C; Deluxe dealer installed A/C; Economy dealer installed A/C
Factory installed integral A/C is combined with the heater, the A/C controls are in the same panel as the heater controls.
HUGE evaporator case located at the right rear corner of the engine compartment.
Factory installed integral A/C is combined with the heater, the A/C controls are in the same panel as the heater controls.
HUGE evaporator case located at the right rear corner of the engine compartment.
Thread
Thread Starter
Forum
Replies
Last Post
Grantmh6.4
1973 - 1979 F-100 & Larger F-Series Trucks
5
Oct 11, 2018 07:37 PM
