'75 Heater Resistor??

[Renedy]

Guys, I am in the process of re-wiring my ’75 crew cab power wagon. I thank you all for hooking me up with the thread to find a NOS wiring harness.

Unfortunately, the previous owner(s) of my ‘wagon were the electrical genius types who spliced with electrical tape and many many crimp connectors, so I am still short some of the electrical system.

Right now I am in the process of trying to get the AC & Heater system back to stock.

Looking at the schematic I need to connect the blower motor to the heater resistor.

Can anyone tell me where the heater resistor was located in ’75 on my truck?

If someone has a photo of one mounted I would really appreciate that a lot.

Also, when I go to Rock Auto & Napa I cannot find a replacement heater resistor part listed.

Anyone know where I can score a replacement heater resistor?

[ddarnell]

I had a question about that also. Don't recall if I figured it out but it looks like it is part of the heater control/ fan switch. If you don't get anywhere by tomorrow I'll take another look and let you know.
David

[712edf]

Heater resistor should be up under dash (passenger side) on the heater assembly unit, held in with too small bolts (1/4"). A wire connector with 3-5 wires should plug into it. The wires come from the blower switch & heater control assembly & go to the blower motor.

Bucky

[Renedy]

Found it

Believe is or not, for this one issue the Haynes manuel I have is better than the factory manuel. They show a picture of the resistor. Now I need to find what the value of the resistor should be.

Interesting that I have a Haynes manuel, Factory service manuel, and a wiring schematic made from a tear down by a buddy of mine, and all three have different color wiring on the various sub-harnesses.

Oh well, keeping me entertained.

Thanks again all.