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Forum: 4speed RWD/FWD Transmission Tuning (incl T42)

4L60E, 4L80E, 4T60E etc transmission tuning, incl T42 TCM.

  1. Sticky Thread Sticky: 4L60E Transmission Torque Reduction during WOT

    Started by recrit, July 11th, 2021
    2 Pages
    1 2
    • Replies: 13
    • Views: 2,435
    August 3rd, 2021 Go to last post
  2. Sticky Thread Sticky: How about a transmission tuning tutorial!

    Started by Redline Motorsports, January 12th, 2006
    16 Pages
    1 2 3 ... 16
    • Replies: 155
    • Views: 157,492
    October 3rd, 2020 Go to last post
  3. Sticky Thread Sticky: 4L60E Reference Material

    Started by joecar, January 11th, 2007
    4 Pages
    1 2 3 ... 4
    • Replies: 32
    • Views: 144,812
    November 12th, 2017 Go to last post
  4. Sticky Thread Sticky: Tool to help tune A4 shift points...

    Started by SSpdDmon, August 1st, 2007
    6 Pages
    1 2 3 ... 6
    • Replies: 55
    • Views: 72,571
    February 6th, 2017 Go to last post
  5. Sticky Thread Sticky: 4L80E Reference Material

    Started by joecar, January 11th, 2007
    3 Pages
    1 2 3
    • Replies: 21
    • Views: 91,862
    February 18th, 2015 Go to last post
  6. Sticky Thread Sticky: Torque Converters

    Started by joecar, October 5th, 2010
    • Replies: 0
    • Views: 10,881
    October 5th, 2010 Go to last post
  1. 4L80E TCC release at idle

    Started by robof16, June 14th, 2021
    • Replies: 2
    • Views: 746
    July 4th, 2021 Go to last post
  2. Question 4L80 T42 problems

    Started by Autovation, May 8th, 2021
    • Replies: 4
    • Views: 1,159
    May 28th, 2021 Go to last post
  3. 03 6L 4L80E VSS 1/2 GPS Speed

    Started by TurboCamaro, March 28th, 2021
    • Replies: 3
    • Views: 1,051
    March 30th, 2021 Go to last post
  4. 4l60e TCC Lockup unlocking at 0% throttle

    Started by Mr98z71, November 22nd, 2020
    2 Pages
    1 2
    • Replies: 14
    • Views: 3,795
    December 10th, 2020 Go to last post
    • Replies: 0
    • Views: 817
    December 9th, 2020 Go to last post
  5. 4l80e parameters to prevent TCC from disengaging in 4th gear

    Started by GMCtrk, August 23rd, 2012
    7 Pages
    1 2 3 ... 7
    • Replies: 62
    • Views: 37,588
    December 9th, 2020 Go to last post
    • Replies: 3
    • Views: 2,096
    August 13th, 2020 Go to last post
  6. 80E Segment swap and ABS not working

    Started by 1bar, May 26th, 2020
    • Replies: 4
    • Views: 2,775
    May 27th, 2020 Go to last post
  7. T42 4L60E 3-4 UpShift issue

    Started by nonnieselman, March 16th, 2020
    • Replies: 7
    • Views: 2,414
    April 27th, 2020 Go to last post
  8. flashing for 4l80

    Started by akafred, October 6th, 2012
    2 Pages
    1 2
    • Replies: 17
    • Views: 8,190
    April 16th, 2020 Go to last post
  9. 0411 Segment swap issues 80E

    Started by 1bar, March 29th, 2020
    • Replies: 4
    • Views: 1,506
    April 13th, 2020 Go to last post
    • Replies: 5
    • Views: 1,941
    March 23rd, 2020 Go to last post
  10. E38/T42 4l60E P0717 Code

    Started by minytrker, February 28th, 2012
    3 Pages
    1 2 3
    • Replies: 29
    • Views: 15,247
    March 17th, 2020 Go to last post
  11. T42 4L80 file

    Started by derkscustomcars, February 25th, 2020
    • Replies: 7
    • Views: 2,743
    March 3rd, 2020 Go to last post
  12. List - T42 4L80E Tune Files

    Started by LeftCoast32, April 12th, 2011
    2 Pages
    1 2
    • Replies: 13
    • Views: 10,295
    February 25th, 2020 Go to last post
  13. need O/S 24255281

    Started by SPi, January 31st, 2020
    • Replies: 0
    • Views: 904
    January 31st, 2020 Go to last post
  14. No Lockup

    Started by max57, November 11th, 2019
    2 Pages
    1 2
    • Replies: 13
    • Views: 6,378
    December 8th, 2019 Go to last post
  15. Need 4L80E segment swap wiring schematic

    Started by 1bar, September 20th, 2019
    • Replies: 1
    • Views: 1,680
    September 29th, 2019 Go to last post
  16. 4l80e change gear completely opposite to what it should

    Started by Ponrov, April 30th, 2019
    2 Pages
    1 2
    • Replies: 14
    • Views: 4,908
    August 25th, 2019 Go to last post
  17. Post 4L60E Shift Pressure Knowledge

    Started by PHLTHS, July 18th, 2019
    4l60, 4l60e, fmc, line pressure
    • Replies: 2
    • Views: 3,870
    July 20th, 2019 Go to last post

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