Author Topic: air inlet valve  (Read 4721 times)

Offline wrangler

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  • 85 C-10 350 carb 2wd recently added air
air inlet valve
« on: March 08, 2011, 04:41:30 pm »
I installed a/c into my non a/c cab a couple of years ago and everything works great.  I have had a part left over, not sure what it was or what it does until now. I'll post a link to the picture and what I'm looking for is someone to explain where and how it is installed.  Thanks http://cgi.ebay.com/ebaymotors/NOS-1973-87-CHEVY-GMC-TRUCK-AC-Air-Inlet-VALVE-DOOR-_W0QQcmdZViewItemQQhashZitem5642a498baQQitemZ370485270714QQptZVintageQ5fCarQ5fTruckQ5fPartsQ5fAccessories

Offline TxFiddler

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Re: air inlet valve
« Reply #1 on: March 08, 2011, 05:00:05 pm »
Hey, I need one of those.  I call it the "flapper".  It mounts on the passenger side of the truck underneath the cowl vent cover.  You should see 2 screw holes on the top of the cowl.  The "flapper" goes down inside the fender.  It lets fresh air in.  I don't have a pic but I can try to get one later.
80 C10 2wd / 427 BigBlock / 700R4 / 3:42 Eaton Posi LSD / 770 cfm Holley Street Avenger / Doug's Headers / MSD ProBillet Distributor / Champion 3 row Radiator

Online VileZambonie

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Re: air inlet valve
« Reply #2 on: March 08, 2011, 09:51:10 pm »
Fresh air door actuator and I agree it goes in the cowl on the pass side. When you select max A/C it should close.
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74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline K20Wulf

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Re: air inlet valve
« Reply #3 on: March 08, 2011, 10:28:25 pm »
When I was sealing my cowl I saw that thing and wondered what the heck it was? Nice to know! :)
86 K20 4x4
7" lift, 35's
350/400/208

Offline wrangler

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  • 85 C-10 350 carb 2wd recently added air
Re: air inlet valve
« Reply #4 on: March 09, 2011, 02:56:53 am »
but where exactly do I access this?  Will I still have this hole if I didn't have a/c from the factory?

Offline Captkaos

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Re: air inlet valve
« Reply #5 on: March 09, 2011, 12:23:45 pm »
Its under the cowl panel.  My cleaning the cowl post will show it.

Offline wrangler

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  • 85 C-10 350 carb 2wd recently added air
Re: air inlet valve
« Reply #6 on: March 09, 2011, 02:27:14 pm »
thanks everyone, I would have never known where to look.

Offline Buddy

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Re: air inlet valve
« Reply #7 on: March 09, 2011, 02:42:51 pm »
hey bud where at in NB are ya!!

Offline wrangler

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  • 85 C-10 350 carb 2wd recently added air
Re: air inlet valve
« Reply #8 on: March 10, 2011, 05:05:59 pm »
I'm in Minto.