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Old 08-07-2018, 05:36 AM   #1
snowball
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AS blowing at feet

hi all,

my ac works but air is cold only at your feet. I think it's the diverter. Any ideas to source parts for this?
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Old 08-07-2018, 11:20 AM   #2
pontgta
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Re: AS blowing at feet

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Originally Posted by snowball View Post
hi all,

my ac works but air is cold only at your feet. I think it's the diverter. Any ideas to source parts for this?

Make sure the vacuum hose coming from the firewall is connected and not broken in the engine bay. You can take a hand vac pump and test it there to make sure you can get the vents to operate.
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Old 08-07-2018, 11:29 AM   #3
Justins76
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Re: AS blowing at feet

Check to see if this plastic hinge is broken. I have to replace mine every few years.
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Old 08-07-2018, 12:56 PM   #4
snowball
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Re: Ac blowing at feet

Looks like the hinge is bad. Where do you get a replacement?
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Old 08-07-2018, 01:35 PM   #5
Dead Parrot
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Re: AS blowing at feet

Check out this thread, should have most of the info you need: http://67-72chevytrucks.com/vboard/s...d.php?t=460942

The white thing connects to the hot/cold door. I think your original problem is the defrost/heater flapper.
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Old 08-07-2018, 01:52 PM   #6
snowball
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Re: AS blowing at feet

Ok. On closser look it looks like this part is broken

Justin, you're showing me the same image. Sorry, couldn't see it on my phone.

So where do we get that hinge?

http://photobucket.com/gallery/user/...NjEwMQ==/?ref=
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Last edited by snowball; 08-07-2018 at 02:40 PM. Reason: added details
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Old 08-07-2018, 08:02 PM   #7
Justins76
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Re: AS blowing at feet

Part #3018715. Come in 5 packs from the GM dealer. There is a lot of pressure from the vacuum motor and they always seem to break in the same thin part of the plastic.
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Old 08-10-2018, 08:04 PM   #8
v30crewcab
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Re: AS blowing at feet

someone needs to machine those out of billet!
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Old 08-11-2018, 08:07 PM   #9
Justins76
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Re: AS blowing at feet

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Originally Posted by v30crewcab View Post
someone needs to machine those out of billet!
That would be a help. The plastic always breaks in the same spot. Its quite thin and over time the plastic likes to get brittle.
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