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- - 72 AC air flow issues (https://67-72chevytrucks.com/vboard/showthread.php?t=797306)

wdlittell

11-29-2019 09:43 AM

72 AC air flow issues

Hi Everyone, I have a 72 GMC K2500 with factory air. I'm getting air out of ac vents but can't get it to come out of the defroster/floor vents. Not sure if its a cable or vacumn issue. Thanks for any ideas and help.

Rods	11-29-2019 10:26 AM

Re: 72 AC air flow issues

1 Attachment(s)

Quote:

Originally Posted by wdlittell (Post 8634600)

Most likely your flapper inside the diverter box is broken.

wdlittell

11-29-2019 10:55 AM

Re: 72 AC air flow issues

Thank You Sir, have to dig in when the weather improves. Cold and snow for the next 2 days. LOL

tdangle

11-29-2019 01:44 PM

Re: 72 AC air flow issues

The flapper door is controlled by a cable, you will want to check that also. I believe you can verify if it is moving the lever before you disassemble the system.

wdlittell

11-30-2019 07:32 AM

Re: 72 AC air flow issues

Thank You Sir! Appreciate the help/

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