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Thread: Bulletin 15175854

  1. #1
    Join Date
    Jul 2001
    Location
    Shelby,NC
    Posts
    58

    Post

    I finally took my truck in for the software upgrades last Tuesday. I complained about "Excessive Shifting While Towing With Cruise Control On". I havn't towed with it yet so the only difference that I can see is that it has much quicker throttle response off idle. The truck has always ran fine. I have noticed the late shift to 1st when rolling through a stop sign and had come to expect it and allow for it. I guess I was chalking it up to "quirkyness". I am not sure if it still does it or not. (I don't think I've ever owned a vehicle that wasn't quirky some how or other.)

    The service invoice states "Updated PCM Per Bulletin 1517854". I am hoping that STEVEO or BIG Al can tell me if this is a good upgrade or should I go back for another shot? The build date on my truck is 11/00.

    This bulletin board is fabulous. I don't post much but I read every word. Thanks guys and gals!!

    Regards,

    Lee

    [ 04-02-2002: Message edited by: glclary ]</p>
    '06 CrewCab Dually, LLY, Retrax Bed Cover

  2. #2
    Join Date
    Oct 2001
    Location
    - U.S.A.
    Posts
    327

    Post

    Sure it's not this:

    Bulletin #210730034 new calibration to address excessive shifting with cruise on and idle surge

  3. #3
    Join Date
    Jul 2001
    Location
    Shelby,NC
    Posts
    58

    Post

    No Mic the invoice says 1517854. Just wondering what I got....Thanks

  4. #4
    Join Date
    Jul 2001
    Location
    Shelby,NC
    Posts
    58

    Post

    We towed our little 8000 lb camper to the hills of South Carolina this weekend. The truck holds overdrive in cruise much better than before the update. Even though the bulletin number doesn't match the numbers posted here in the forum, it definitely helps.

    Lee
    '06 CrewCab Dually, LLY, Retrax Bed Cover

  5. #5
    Join Date
    Nov 2000
    Location
    Pensacola, FL
    Posts
    93

    Post

    glclary;
    That number is the software update #.
    Ed
    GMC 3500 D/A 4x4, SLT<br />Running Boards, Lucerix Mirrors, gauges,CB,Street Pilot III w/outside antenna, Jordan Brake Controller,U.S.Gear Exhaust Brake,Amsoil Air and Dual Remote Oil Filter,Rhino Bed Liner, Mud Flaps.<p><a href=\"http://www.picturetrail.com/Edmac\" target=\"_blank\">Pictures</a>

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