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  1. D

    Allison 5sp: No engagement

    Transmission is assembled in truck and shifts great. Couldn't be happier. Not 100% sure what caused the issue in the first place but if I had to guess I would lean towards clearances between apply plates and clutch packs not in correct order. Glad this project has come to an end and thanks for...
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    Allison 5sp: No engagement

    Still in process of installing everything; however it seems the input shaft was locked up not allowing any planetarys or clutches to move either way. Just taking my time making sure everything is done right but will post once Trans is back in one piece.
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    Allison 5sp: No engagement

    Thanks for the advice. Yea I'll take step by step pics and post them up when I tear into it.
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    Allison 5sp: No engagement

    I'm gonna be tearing it back down shortly. I'll keep ya posted once I get the truck back thanks.
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    Allison 5sp: No engagement

    Yea can never catch a break with this truck. Coventry ct
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    Allison 5sp: No engagement

    After all tests were run and checked out fine Trans still won't engage in any gear leaving it to be that there's somethin internally wrong.
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    Allison 5sp: No engagement

    Diesel Shop in Jewett city. No updates as of yet due to holidays. Hoping for some good news by end of the week.
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    Allison 5sp: No engagement

    I currently have truck dropped off to a shop to run diagnose check. I will keep you posted as to what it comes out to.
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    2003 Gmc 2500hd

    Dmax0389 submitted a new Showcase Item: 2003 Gmc 2500hd Read more about this showcase item here...
  10. 2003 Gmc 2500hd

    2003 Gmc 2500hd

    2003 Gmc 2500hd
  11. D

    Allison 5sp: No engagement

    Well I haven't had any previous problems with ecm/ tcm or Ignition switch etc. I agree I should have reverse and 3rd. I'm thinking my next step is diagnosing with tech2..
  12. D

    Allison 5sp: No engagement

    This thread pertains to my truck a friend of mine and I are tryin to get to the bottom of this mystery. Manual valve pin along with everything in vb is in place. Starting to believe its either tcm/ecm or ignition switch?
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