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2004 Transmission Stays in Drive when in Park

Discussion in '2nd Gen - 2003 - 2006' started by smart, Jan 21, 2021.

  1. smart

    smart New Member

    Likes Received:
    Jan 13, 2015
    2004 5.4L E4OD. +200K miles.
    Had 1-2 upshift issue (upshifted better when taking out of OD, get mph up and then turn OD back on it would upshift; also a delay in upshift if left in OD - usually after warmed up) no other issues. No Codes. No Flashing OD light.

    Replaced all the shift solenoids, filter kit, and a new spring and piston in the 1-2 shift accumulator.
    Test drive - all gears present and smooth shifting.

    ISSUE: When in Park it will still roll forward. Replaced the shift position sensor/switch on the trans and still has the issue. Tried shifting without the linkage/cable attached and same issue.

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