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Thread: 4l60 shifting

  1. 06-25-2015 #1
    Robbiej22
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    4l60 shifting

    hELLO EVERYONE AND THANKS IN ADVACE FOR ANY INFO TO HELP

    i HAVE A 2003 GMC TRUCK WITH 4L60 I CAN PULL IT DOWN IN 1ST AND LAY INTO IT AND IT SHIFTS INTO 2ND AT 30MPH CAUSING IT TO BOGG, i HAVE CHANGED MPH IN TRANS SETTINGS TO GET MORE MPH OUT BETWEEN SHIFTS BUT NOTHING HAPPEN iM NO TUNING GOD EITHER CAN ANYONE SUGGEST SOMETHING FOR ME TO TRY
    Last edited by Robbiej22; 06-25-2015 at 02:02 PM.
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  2. 06-25-2015 #2
    Markmx6
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    Would help if you posted your tune.

    It's too hard to more than guess at this point
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  3. 06-25-2015 #3
    smokestack
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    As was stated above. Post your tune and a log if you can. And stop yelling!!!
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  4. 06-25-2015 #4
    10yz250f
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    I have good luck changing the wot shift rpm. Not the mph
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  5. 06-26-2015 #5
    Robbiej22
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    im at work and i will load a tune later today,, I wasnt yelling hahahhaha,,,, wot rpm doesnt help it tried that lol...
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