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Thread: Allison shifting hard

  1. #1
    New Member Rambo's Avatar
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    Default Allison shifting hard

    Allison shifting hard going from 3-4 at full throttle. Can anyone tell me what to adjust.
    02 Chevrolet LB7 D/A CC-SB , ATS Aurora 3000 turbo,ATS twinn CP3 (thanks Wade) suncoast stage V tranny,Fass fuel system, Banks Techni-cooler ,5 inch stacks,BD manifold,ATS boost and exhaust temp. gauges, EFILive Danville performance tune (thanks Mark) , line-X, and mickey thompson classic II wheels with 285-70-17 BFG mud terrain tires

  2. #2
    Senior Member lakingslayer's Avatar
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    Have you given the trans a chance to learn? If so try resetting the 3-4 shift TAPS.

  3. #3
    New Member Rambo's Avatar
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    thanks lakingslayer,I reset my 3-4 shift taps only to have same problem again. suncoast is currently working on fixing my problem. they are going to try to tune it out first. if that don't work i will have to pull the tranny. i've been told it is the tranns-go shift valve.
    02 Chevrolet LB7 D/A CC-SB , ATS Aurora 3000 turbo,ATS twinn CP3 (thanks Wade) suncoast stage V tranny,Fass fuel system, Banks Techni-cooler ,5 inch stacks,BD manifold,ATS boost and exhaust temp. gauges, EFILive Danville performance tune (thanks Mark) , line-X, and mickey thompson classic II wheels with 285-70-17 BFG mud terrain tires

  4. #4
    Senior Member lakingslayer's Avatar
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    Quote Originally Posted by Rambo
    thanks lakingslayer,I reset my 3-4 shift taps only to have same problem again. suncoast is currently working on fixing my problem. they are going to try to tune it out first. if that don't work i will have to pull the tranny. i've been told it is the tranns-go shift valve.
    Keep us posted on what you find.

  5. #5
    New Member Rambo's Avatar
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    I will, be glad to get it fixed because it will throw you in your seat going into fourth gear.
    02 Chevrolet LB7 D/A CC-SB , ATS Aurora 3000 turbo,ATS twinn CP3 (thanks Wade) suncoast stage V tranny,Fass fuel system, Banks Techni-cooler ,5 inch stacks,BD manifold,ATS boost and exhaust temp. gauges, EFILive Danville performance tune (thanks Mark) , line-X, and mickey thompson classic II wheels with 285-70-17 BFG mud terrain tires

  6. #6
    New Member HD-Nate's Avatar
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    Quote Originally Posted by Rambo
    I will, be glad to get it fixed because it will throw you in your seat going into fourth gear.

    You say that like its a bad thing??


    Let us know what you find please.

  7. #7
    New Member Rambo's Avatar
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    it is at the dealer shop right now getting dignosed
    02 Chevrolet LB7 D/A CC-SB , ATS Aurora 3000 turbo,ATS twinn CP3 (thanks Wade) suncoast stage V tranny,Fass fuel system, Banks Techni-cooler ,5 inch stacks,BD manifold,ATS boost and exhaust temp. gauges, EFILive Danville performance tune (thanks Mark) , line-X, and mickey thompson classic II wheels with 285-70-17 BFG mud terrain tires

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