HVAC, the cable that opens the vent that lets in cold air or heat is stuck in the cold air position?

1983 GMC S15

143,168 MILES • 2.8L • V6 • 2WD • AUTOMATIC

PILOTBILL

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I need your help. I have the pickup listed above, with A/C and heater. The cable that opens the vent that lets in cold air or heat is stuck in the cold air position. I pulled out the control assembly. As i pulled out the control assembly, i forgot about the vacuum harness assembly, it pulled off. I need to know in what position the vacuum harness plugs back on. I am enclosing four (4) photos of the control assembly. Please help with any information you might have, thank you, Bill H. Comfort, Texas. Pictures would be very helpful also.

Images (Click to enlarge)

Nov 26, 2023 at 12:28 PM

JACOBANDNICKOLAS

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Hi,

I'm not having too much luck due to the model year. I attached anything I could find, but I suspect it isn't what you need.

Take a look and let me know if they help.

Joe

See pics below.

Images (Click to enlarge)

Nov 26, 2023 at 5:13 PM

PILOTBILL

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Thank you very much, as soon as the weather warms back up some, i will get back to work on the system. Thanks a lot for the photos, they are a very big help.

Nov 27, 2023 at 7:14 AM

JACOBANDNICKOLAS

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Hi,

I'm glad to know they are helpful. Information is really limited because of the model year.

If you have a chance, when you get to it, let me know how things turn out for you.

Take care,

Joe

Nov 27, 2023 at 8:21 PM

PILOTBILL

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I sure will. We are suppose to have this cold snap for about 2 weeks before it warms up again. I will let you know how things work out. Thank You Again. Bill H. / Comfort Texas

Nov 28, 2023 at 6:47 AM

JACOBANDNICKOLAS

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110,175 POSTS

Hi,

No problem whatsoever. Keep warm!!! I'm near Pittsburgh. We had single-digit wind chills today. I miss summer. LOL

Take care,

joe

Nov 28, 2023 at 8:12 PM