Low air volume or velocity coming from my vents?

Discussion in 'Kenworth Forum' started by Lead_sled, Jul 30, 2021.

  1. Lead_sled

    Lead_sled Bobtail Member

    Mar 15, 2021
    I’ve been chasing down an issue with low air volume or velocity coming from my vents.

    2009 T660

    Today, I removed the glove box and lower panel to find that I have air escaping behind the heater box. Does anyone have a reference to a video or schematic that shows how things look behind there where I can’t see? I hate to break air conditioning lines to remove the components in the engine bay without knowing what I may be facing. I’m still working the truck and having a/c in 100+ degree temperatures is necessary.

    When I feel around the back, I can feel a rubber flap. While the fan is running, it’s open. And when the fan is turned off, the flap relaxes. I have a feeling that maybe something is missing or misaligned because I don’t think I should be able to feel this rubber flap where air is supposed to be contained and directed to the vents.

    Any help will be greatly appreciated.
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