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1972 K10 Disabled Veteran First Build
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05-15-2015, 08:06 PM
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0311Chevy8152
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Join Date: Mar 2015
Location: Elverta, California
Posts: 104
Re: 1972 K10 Disabled Veteran First Build
Quote:
Originally Posted by
SS Tim
All trucks have a direct manual operation driver's inet air vent.
On non-A/C trucks there is a matching direct manual operation passenger inlet air vent.
However on A/C trucks like yours, was, this became the air recirculation door. It is vacuum motor operated to allow interior air to be sucked into the A/C inlet plenum when the outside/fresh air door (also vacuum motor operated) is closed.
Might be best to review the factory service manual on the A/C system if the picture does not clear this up for you.
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Thank you very much. I didn't realize the a/c systems were that advanced back then. Make sense.
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