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Thread: 0411 swap 4l80e low range not shifting up

  1. #1
    Potential Tuner
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    Mar 2022
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    0411 swap 4l80e low range not shifting up

    Hi, I have a Cherokee Chief with a L29 454 & 4l80e, thats had a 0411 swap, in low range, its not changing up gears unless revved above 3000 in each gear.
    I have connected c2-16 to earth when in low range & i think its c2-17 with ignition power. I am pretty sure the file is from a 4wd , but not 100% , if someone could check that would be awesome, I have tried some segment swaps from the repository, but not many there , with my os 12212156, 2002 model, the others wont let me do the swap.
    So some help please with
    Other possible causes
    Someone with a file for a 2000 ish Silverado or Suburban that has a 4l80e & is 4WD that has a OS 12212156 or something that is compatible for a segment swap in case mine is not from a 4WD.
    Thanks
    Attached Files Attached Files

  2. #2
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    Mar 2022
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    I have found a file for a K2500 4wd & done the segment swap, but still not shifting out of 1st when in low range, unless revved above 3000. Works fine in high range.
    Any ideas?

  3. #3
    Potential Tuner
    Join Date
    Jul 2021
    Location
    Central, upstate NY
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    What's the transfer case number? My 243 has a range switch on top left side of the case that tells the PCM when it's in low range.

  4. #4
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    Mar 2022
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    Mine has a switch also, that is connected. Wondering if the ecm does not have a 4wd table, not sure how to check that.