4L60E Issue
January 5th, 2020, 7:43 PM
#1
CF Beginner
Thread Starter
4L60E Issue
93 Suburban with 208k. Trans shifts early through all gears. 1st-2nd before 10mph and through all gears before 35mph. Replaced TPS and VSS. What could be the issue?
January 5th, 2020, 7:46 PM
#2
stock size wheels and rear axle?
January 5th, 2020, 8:12 PM
#4
that will affect it a bit, but I don't know your vehicle history.
My 4L60E works fine, and cruising in 4th @ 35mph isn't unusual, but it depends on so many things... accelerator pedal position, engine load, gearing, incline etc.. so it's not really a reliable indicator. Try to find out the shift RPM and get the OBD system scanned for abnormalities. Make sure the relevant sensors are reporting correctly.
My 4L60E works fine, and cruising in 4th @ 35mph isn't unusual, but it depends on so many things... accelerator pedal position, engine load, gearing, incline etc.. so it's not really a reliable indicator. Try to find out the shift RPM and get the OBD system scanned for abnormalities. Make sure the relevant sensors are reporting correctly.
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