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Blower motor staying on

Started by Shoooter, September 07, 2019, 11:13:55 PM

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Shoooter

I have a AC blower motor that is staying on with the key forward.  It wont switch speeds or turn off. I pulled the switch out and cleaned it but no luck. Could the be a problem with the heater blower motor resistor? When I pull any of the wires off the resistor the blower motor still runs.

Bpret

I had the same problem after putting my car back together. In my case I had the wrong wire connected to blower. Look around the wire harness there is another wire in the same area.

dodj

You seem to have it wire to acc power rather than switched through the resistor. I agree with beret,  check your wiring,  Aftermarket or original wires?
"There is nothing your government can give you that it hasn't already taken from you in the first place" -Winston Churchill


Shoooter

I'll take a look again I think your right. Thanks I'll let you know what I find.

Shoooter

Does anyone know what colour the blower wire on the harness should be?

1 Wild R/T


Shoooter

Ok I'm hooked up to dark blue right now. What one does the blue go to?


anlauto

#7
Going only from memory....There is a low pressure switch on top of the dryer. The blue wire from the harness plugs into that switch. Another blue wire runs from the switch to the compressor.
When you added the additional AC underhood wiring harness to the transmision harness, you had to plug two additional wires into the bulkhead connector...they were blue and dark green. The dark green wire goes to the blower motor  :alan2cents:
I've taught you everything you know....but I haven't taught you everything I know....
Check out my web site ....  Alan Gallant Automotive Restoration

Shoooter

Ok I dont have under hood AC harness yet. That's my problem.  Oil found the harness on classics site. I guess I will just have to hide the other wires as I haven't found any under dash AC parts yet. Is there a way to make the blower motor work until I find all the pieces or easiet  way is to just use this one and hide the wires till then? Thank you again everyone

anlauto

Do you have the AC harness inside the car ?
I've taught you everything you know....but I haven't taught you everything I know....
Check out my web site ....  Alan Gallant Automotive Restoration

Shoooter



Shoooter

Where do the spayed ends of the AC engine side harness go to? I'd there a plug I cant find on the dash side that it does into? Anyone with a AC car care to PM me?

anlauto

The green wire is in #4 and blue is in #3 on the interior side of the bulkhead. I mis-spoke earlier, on the engine compartment side they become part of the transmission harness not engine.
I've taught you everything you know....but I haven't taught you everything I know....
Check out my web site ....  Alan Gallant Automotive Restoration

Shoooter

Alan, so correct me if I'm wrong but you are saying the under hood ac harness that I'm missing ( two wires a blue and a green) ties into the transmission harness?

anlauto

#14
Yes...the normal (without AC) connector plug from the transmission harness should have two empty sections in it where you can add the AC harness wires. They simply click into the connector

This is a bad picture of an automatic harness, but manual is the same....See how there is two available slots for adding the AC wires

...and an even worse picture of the AC under hood wire harness  :rofl:
I've taught you everything you know....but I haven't taught you everything I know....
Check out my web site ....  Alan Gallant Automotive Restoration