Dash Heat/A/C control unit

[mike teets]

When I was putting my 77 GMC to sleep for the winter, I attempted to slide the A/C lever to heat. I heard a pop and then the level slid freely from
side to side. I suspect I broke something. I haven't had a chance to dig in and figure it out. Anyone have advice on what I am in for? Are there
replacements available if I did break some plastic component?

--
Mike
77 Palm Beach, 260, 403
Dublin, OH

http://teamteets.com/gmc/

 

[hal stclair]

Sounds like you broke the pin the levers rotate on. Don't know the actual name but once you pull it apart it will be quite evident.Try Alex Sirum out
of Florida, he has a replacement made of aluminium for around $10 if that's your problem. Hal
--
1977 Royale 101348,

1977 Royale 101586, Diesel powered,

1975 Eleganza II, 101230,

1974 Eagle Bus 45',w/slideout,

Rio Rancho, NM

 

[terry1]

Or the molded cable end eye that anchors the cable sheath to the control broke and now the entire cable is moving instead of just the core. You will
have to see where it is bent the tightest and relieve that stress, repair the cable end with a P type cable clamp, and attempt to lube the cable with
some silicone or other plastic-friendly lubricant. Or get a new/another cable and install it with minimum bending to make the action easier on the AC
control assembly.
--
Terry Kelpien

ASE Master Technician

73 Glacier 260

Smithfield, Va.

 

[jim kanomata1]

Until you pull the controller out and inspect, you just guessing as to what
is possibly going on.
All the possibilities have been posted. We stock replacement parts or can
have it repaired so

> Or the molded cable end eye that anchors the cable sheath to the control
> broke and now the entire cable is moving instead of just the core. You will
> have to see where it is bent the tightest and relieve that stress, repair
> the cable end with a P type cable clamp, and attempt to lube the cable with
> some silicone or other plastic-friendly lubricant. Or get a new/another
> cable and install it with minimum bending to make the action easier on the
> AC
> control assembly.
> --
> Terry Kelpien
>
> ASE Master Technician
>
> 73 Glacier 260
>
> Smithfield, Va.
>
>
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>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502

 

[john r. lebetski]

Have someone move the temp lever while you watch cable under the drivers side hood where it moves temp door lever on side of air box. If not moving
problem is under dash.
--
John Lebetski
Woodstock, IL
77 Eleganza II

 

[charles boyd]

A few years ago the plastic piece that fastens the cable to the door lever broke. I called Jim B kinda freaking out. He says "go to your local Chevy
dealer and get you one, they are still available". Probably the only piece on the coach that was.. IIRC it was < 1$.

> Have someone move the temp lever while you watch cable under the drivers side hood where it moves temp door lever on side of air box. If not
> moving problem is under dash.

--
C. Boyd
76 Crestmont
East Tennessee