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Thread: Air Box Door Reseal

  1. #1

    Dr_Snooz's Avatar
    Join Date
    Jun 2007
    1989 Accord LX-i
    Fresno, California

    Air Box Door Reseal

    This is an easy Saturday morning project. One of the problems with old cars is that the seals around the heater doors disintegrate. On Chevys, it means that the hot air from the heater is always blowing into the passenger compartment. That's a problem when it's hot outside. On Hondas, it means that when you get stuck behind a smelly Ford diesel, the REC button doesn't stop the stink.

    To fix that problem, pull out the glove box, then the heater blower motor. Complete directions for that are in the manual (you can download it from my signature below). Pull out the air diverter doors and reseal them using some standard foam sealing tape from Home Depot. Also reseal around the top of the blower motor (see the pic). Everything you need is pictured below. The only tricky part is that one of the doors can be turned end for end when you re-install, which will cause problems when you try to re-assemble the linkages and re-install the box. Just make sure your mechanism works completely before reassembling. You'll notice that your AC works a little better and that stinky Ford pickups don't stink so much anymore.


    "I like to take hammers, and just break stuff, just break stuff." - Beavis

    1989 Honda Accord LX-i Coupe, 240k miles, MT swap, rear disc swap

    Shop manual downloads available here: CLICK TO VIEW

  2. #2
    LX User Fixedit's Avatar
    Join Date
    Feb 2015
    1986 LXi Sedan - 1972 F250 C/S - 1987 DX Hatch - 1977 Skylark S/R (Sold) - 2001 Hyundai Accent GS (Sold) - 1981 Suzuki GS450 (Sold)

    Re: Air Box Door Reseal

    This is awesome, thanks for the tip! My air controls have all sorts of problems I have yet to tackle. Being young and stubborn, getting that rear disc swap done seems to be the most important thing to me right now haha so a lot of things are being put off. But I'll use this info I know I will

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