Exploded view please

[drhd]

Would anybody out there have a explowed view of the blowed motor for a 1976 with AC. Looks like you have to remove the complete unit on the firewall just to change out a blower motor.

 

[Mil1ion]

Heater Core Removal and Installation For 1973-1979 Ford F-Series Trucks
By Thomas Hogan

1. Disconnect the battery ground cable.
2. Remove the air cleaner.
3. Drain the engine coolant below the level of the heater core.
4. Remove the heater hoses from the heater core.
5. Remove the screw fastening the A/C hose support bracket to the firewall.
6. The expansion valve is located on the right side of the evaporator core housing. Remove the insulating tape covering the valve.
7. Remove the two screws holding the plate over the opening that the A/C hoses exit the evaporator housing. Remove the plate and the seal.
8. Remove the glove box liner.
9. Separate the A/C duct from the register in the instrument panel and free the clip holding it to the plenum. Remove the duct from under the dash.
10. Remove the vacuum hose from the vacuum motor on the right hand side of the air box.
11. Remove the rear housing cover from the evaporator housing. The cover is retained by 4 nuts and one bolt. Disconnect the fresh air tube from the rear cover. After the cover is removed reinstall one nut to secure the evaporator housing to the firewall.
12. Gently remove the capillary tube from the evaporator core. Disconnect the wires from the icing sensor. Remove the plate the sensor is mounted to.
13. Remove the plenum by extracting the two screws above the transmission tunnel that hold the plenum to the dash.
14. Remove the screws securing the evaporator.
15. Pull the evaporator from the case and secure it above the case.
16. Remove the heater core.
17. Remove the heater air control door. There are no screws this is retained by a spring clip and snaps off.
18. Remove the arm that supports the air control door and the retainer that secures the pivot arm.
19. Remove the blower motor.
20. Transfer the blower wheel to the new motor.
21. Reverse the disassembly steps to assemble the heater A/C box.

 

[drhd]

Thank you very much, So I' m reading the blower motor is removed from the inside of the truck. Correct?

 

[smokey]

That is correct. the motor is removed from the outside once you remove it vacumm it out as little critters tend to make nests in there.

 

[fatherdoug]

Yes, the motor is removed from the INSIDE. Might also want to replace the heat exchanger while you're in there. You'll only want to do that job once. You have a little more room to move if you remove the screw holding the dash on the passenger side, also. FWIW.

 

[cipsmithers]

You have a little more room to move if you remove the screw holding the dash on the passenger side, also. FWIW.

AMEN AMEN AMEN. I work in a shop that specializes in radiators, heaters, and a/c. That will make life a lot easier

 

[BKW]

Would anybody out there have a explowed view of the blowed motor for a 1976 with AC. Looks like you have to remove the complete unit on the firewall just to change out a blower motor.

How do you know the blower motor is bad?

It could be a defective blower switch, or the blower motor's resistor.

The switch (19986) is shown at the lower left in Mil1ion's pic.

The blower motor resistor (19706) is just to the left of the accordian hose used with the double register.

 

[drhd]

How do you know the blower motor is bad?

It could be a defective blower switch, or the blower motor's resistor.

The switch (19986) is shown at the lower left in Mil1ion's pic.

The blower motor resistor (19706) is just to the left of the accordian hose used with the double register.

Good point, I do not know if the blower is bad, but looking at the process I will change the switch and resistor before having to take on the monster of changing the blower motor. Man what was those thinking when the designed a mess like this system!!!!!!!!!!!!!

 

[fatherdoug]

Generally, if the resistor is bad, the blower motor will only work on high speed.

 

[Mil1ion]

Just use a 12V jumper wire to test the heater motor.

 

[m78]

I'm glad some one fixed the spelling

 

[miottimouse]

i 2nd that if you gotta get in there anyways change out moter and heater core trust me you will only want to do that job once? you may want to remove the seat to get at every thing its a lot easier to work there if your not hanging half in half out of the door