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Thread: '94 C3500 Crew Cab Interior air filtering

  1. 07-24-2008, 12:11 #1
    Splitrimz's Avatar
    Splitrimz
    Splitrimz is offline Enthusiast
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    Smile '94 C3500 Crew Cab Interior air filtering

    I can't find a diagram of the ducting system on this truck anywhere. I'm primarily interested in locating, if there is any, dust filter for the Heater/AC system.

    Anyone know where the exterior air for the system originates? Does this truck have any breathing air filtration? I've got lots of dust and I want to find and clean the filter, or add one if necessary.

    Thanks for any help.

    Splitrimz
    1994 C3500 6.5TD CREWCAB DUALLY, Heath Turbomaster, cone style cold air intake, PMD cooler mounted under grill, Banks boost and exhaust temp gauges, OPS bypass, Air Lift rear bags.

    2006 LBZ LTD, 4WD, CREW CAB DUALLY.
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  2. 07-24-2008, 22:16 #2
    1999GMC
    1999GMC is offline Enthusiast
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    They don't have cabin air filters. The air comes in on the pass. side cowl.
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