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Thread: 8hp70 no shift

  1. 04-27-2021 #1
    white1
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    8hp70 no shift

    Installed unlocked PCM into a 2020 charger, drove close to the shop for internet. Installed bypass cable, pulled factory tune, loaded base tune now trans will not do anything. Dash says shift to park then into desired gear. Shift lever moves fine but trans stays in park. Any advise is appreciated
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  2. 05-03-2021 #2
    ramdart74
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    Does he happen to have the tazer married to the car. I had the same problem when loading in the trans tune. Unmarried the tazer, loaded tunes and it was fine. Then married back the tazer.
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  3. 05-10-2021 #3
    white1
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    Quote Originally Posted by ramdart74 View Post
    Does he happen to have the tazer married to the car. I had the same problem when loading in the trans tune. Unmarried the tazer, loaded tunes and it was fine. Then married back the tazer.
    It did not have a tazer.
    Sent it to the dealership, and all is good now. Not 100% sure what they did
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