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Thread: 4l60e 3-4 issue

  1. #1
    Potential Tuner
    Join Date
    Jan 2022
    Posts
    1

    4l60e 3-4 issue

    Hi dudes, i have a 4l60e rebuild with less 500 miles.

    -Sonax Smart Shell
    -Clutch Pack Red Raybestos
    -Zpack 3-4
    -Corvette Servo
    -Red Wide Band
    -Tq 3200 stall
    -External Cooler

    the transmission did never get hot (i have temp sensor) always below 170*F, i tuned with Blue Cat so when i go in WOT the 4th gear not enter if i don?t loose the gas pedal it will hit the rev limiter. i watch the oil level and i see the level below the 2nd dot, that can cause slip or will be tune issue? Only in wot i have this issue green line is my oil level with 160* temp. My shifts 1-2 2-3 did feels smooth.

    The transmission is in a:
    Silverado 2003 2 doors
    2wd 4.10 gear
    230/242 625/605 103LSA
    660 springs
    6.0 with 243 heads
    29" tyres size
    SD tune

    I have false KR dont worry about that.

    Silverado 6.0 3-4 issue.hpt
    2nd pass.hpl
    1st pass.hpl

    CapOilLeveñ.jpg

  2. #2
    Advanced Tuner
    Join Date
    Aug 2023
    Location
    SoCal
    Posts
    450
    Quote Originally Posted by slw_chevy View Post
    Hi dudes, i have a 4l60e rebuild with less 500 miles.

    -Sonax Smart Shell
    -Clutch Pack Red Raybestos
    -Zpack 3-4
    -Corvette Servo
    -Red Wide Band
    -Tq 3200 stall
    -External Cooler

    the transmission did never get hot (i have temp sensor) always below 170*F, i tuned with Blue Cat so when i go in WOT the 4th gear not enter if i don?t loose the gas pedal it will hit the rev limiter. i watch the oil level and i see the level below the 2nd dot, that can cause slip or will be tune issue? Only in wot i have this issue green line is my oil level with 160* temp. My shifts 1-2 2-3 did feels smooth.

    The transmission is in a:
    Silverado 2003 2 doors
    2wd 4.10 gear
    230/242 625/605 103LSA
    660 springs
    6.0 with 243 heads
    29" tyres size
    SD tune

    I have false KR dont worry about that.

    Silverado 6.0 3-4 issue.hpt
    2nd pass.hpl
    1st pass.hpl

    CapOilLeveñ.jpg
    If you did not change the slide spring in the pump you can't shift it pass 5400 RPM or else the slide opens with centrifugal force and the it just can't shift. If you absolutely want to shift it pass 5400 RPM you'll have to put this in the pump: https://transgo.com/product-details/700-pkh/
    Robert Moreau
    Technical Sales and Marketing Support Specialist
    TransGo
    2621 Merced Avenue El Monte, CA 91733 USA
    Calibration | Innovation |Performance
    https://transgo.com/our-products/