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Key buzzard? 84 blazer and delayed wipers modual

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Ben Malinski, May 26, 2002.

  1. Ben Malinski

    Ben Malinski Guest

    Well, the "key in the ignition buzzard" has died! Time for burial and a replacement! But, where is it and what does it look like?
    Also, I'm thinking of buying a steering column (tilt, cruise, delayed wipers) from a fellow in Colorado. Where is the black box that controls the delayed wipers located and what does it look like. The steering wheel is coming out of an 86 blazer.
  2. Michael

    Michael 1/2 ton status

    Feb 17, 2000
    Likes Received:
    Sherman, Texas
    Man, I have removed at least a dozen of those things and tossed 'em! I would just leave it dead, but it's a little black box 3" square 1/2" thick or so with little spearker holes in it. It should be around the fuse box and just unplug. I'm not sure on the wiper deal....LMC lists one for $52, so it would be nice to get one with the column. It should be hangin' around under the dash also....wires plug in one side and out of the other. That's the best I can do.....sorry.
  3. Ben Malinski

    Ben Malinski Guest

    Thanks Michael!
  4. dyeager535

    dyeager535 1 ton status Premium Member

    Dec 13, 2000
    Likes Received:
    Roy WA
    You can rebuild those buzzers apparently. Personally, I've killed too many batteries without one. /forums/images/icons/smile.gif

    Hmm, here it is. Mid 80's car is the subject here, should be very similar. At $52, worth a check to see if they are similar : )

    "Hope nobody threw out those chime modules whose volume
    was low. They can be repaired, as my now restored to full
    volume module could attest.

    The problem is simple, how hard the fix is depends on
    which module you have. The tone is generated by an electr-
    magnet vibrating a diaphram that seals a resonant cavity.
    The diaphram rests on a step moulded into the cavity and
    then a thin strip of foam holds the diaphram in place also
    keeping the diaphram the correct distance from the magnet.

    It seems that this foam, which looks much the headliner
    foam, suffers the same deterioration. Eventually the
    diaphram can move around changing it's distance from the
    electromagnet, this in turn reduces the volume. In severe
    cases the diaphram can even hit the magnet making a sort
    of knocking noise.

    A 22529628 (85-86 w/TR9) should be rather easy as it's a
    simple matter to get at the diaphram. A 22531857 (87-88)
    will be more difficult due to it's construction, plastic
    tabs folded down to hold the assembly in place.

    What is actually used as replcement for the foam, doesn't
    seem to matter, so long as it at least as thick as the
    original and compressable enough that everything can be
    reassembled easily. I used a piece of closed-cell foam I
    had laying around that had wrapped something for shipping.
    When held in place by hand, even an airhorn gasket seemed
    to work. The tricky part is you'll have to cut a 1/8" wide
    ring about 1-5/8" diameter of material to replace the foam.

    Sorry, I didn't take any pictures of the process when I did
    my 22531857. I only figured it was 50-50 it'd work. Ended
    up being pleasantly surprised. I still have a 22529628 that
    needs to be fixed, so someday when I do that one."

    Courtesy of Keith Grant, Oldsgmail list.

    not sure if no noise at all is fixable, but they are also common in the wrecking yards. I believe some car ones *are* interchangeable, but I'd want to take mine with me to match them up.
  5. dyeager535

    dyeager535 1 ton status Premium Member

    Dec 13, 2000
    Likes Received:
    Roy WA
    BTW, after re-reading your post, it may not even be that that is the problem. The contact in the column may be a problem too.

    The wiper module is under the dash somewhere, usually silver finned (heat sink) and black plastic. Just about any GM vehicle same vintage with delay wipers will have one. Unplugs at both ends.

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