[GTOh!]

Hi guys. I'm trying to get the heater fan to work on my '67 GTO. I tore into it today and found what I hope is the solution. See attached photos.

The first photo shows the blower switch with what looks to be a missing 12 volt feed. If I'm reading it right, my wiring diagram shows that the feed should be a brown wire.

The second wire shows a "loose" DOUBLE brown wire with a connector that looks like it'll snap into place on the blower switch.

Can someone advise me whether this double wire belongs on the switch?

Any help is much appreciated.

Thanks


Don

[Andre]

My recollection is that is correct. A note regarding these switches... the second part of the controlling of the blower speed is the resistor that is mounted on the top of the air box inside the cabin. Sometimes that goes bad, so if the blower only works at one speed, that is the place to look. It looks just like the resistors pictured in old school books and its fairly obvious if it has broken.

[GTOh!]

Originally Posted by Andre

My recollection is that is correct. A note regarding these switches... the second part of the controlling of the blower speed is the resistor that is mounted on the top of the air box inside the cabin. Sometimes that goes bad, so if the blower only works at one speed, that is the place to look. It looks just like the resistors pictured in old school books and its fairly obvious if it has broken.

Thank you Andre! I do have a new resistor and found its location too. In fact, along with the car, came a new fan switch, a new resistor a new heater core and a new (NOS) heater box. Based on your advice, I'll examine the old resistor upon removal, looking for a visual defect/failure in it.

I doubt I'll use the heater box on this job, but I'll install the new switch and the new resistor. My lingering question to myself as I continue on today is why the power feed to the blower switch was unconnected. I hope it was just an oversight on previous maintenance or that it fell off on its own. Wish me luck...

[428ho4spd]

Here's an illustration from the service manual if it helps...

[GTOh!]

Good morning all.

Checking in here to share that I've completed the heater fan repair and gauge cluster lens R&R with success. Let me just say that if you ever get the chance to remove the gauge cluster from your car...DON"T. I've done alot of jobs on alot of classic cars but this one was a real PITA .

My only niggling task is to figure out why, after reassembly, the courtesy lights are constant ON. I checked the ground wires at each door plunger switch and don't see where they've been inadvertently grounded. I suspect the 55 year old headlight switch didn't survive the job. I'll likely pick up a new one and hope that this is the needed fix.

Regards

[428ho4spd]

Don,

Check your lower dash center courtesy lamp above the console and make sure the socket isn't cocked in the holder and grounding out against the side of the bulb.

Grant

[GTOh!]

Originally Posted by 428ho4spd

Don,

Check your lower dash center courtesy lamp above the console and make sure the socket isn't cocked in the holder and grounding out against the side of the bulb.

Grant

Thank you Grant. My car has the factory 8 track tape player, therefore, I have under-dash courtesy lights on the LH and RH side. I looked into your suggestion and found that the LH bulb was indeed cocked against the light's mounting bracket. Thanks to you and your advice, I'm all fixed. The dash is back together with the heater now functioning at 100% and the rally gauge cluster's lens is new. Even the AM radio and tape players work. Not even a squeak or rattle issue. I'm so happy!!!

Thanks again!

[428ho4spd]

Great! I've had that one get me a few times over the years. Much nicer having the dual lamps with the 8-track option. Nice work!

[GT182]

I have the dual courtesy lamps under my dash too. Far better than the single, seeing I have an aftermarket Kenwood radio mounted under the dash, in the radio's mounting case.