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4l80e tcc slip issues.

Re: 4l80e tcc slip issues.

Postby MIKE91B » Jan 24 2020, 10:24pm

Any update on this?
2015 Reg cab, 2wd, 5.3l, On3 single turbo, E85 conversion, 4.10 rear gear, and HP Tuner software.
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Re: 4l80e tcc slip issues.

Postby fuzzydash [OP] » Jan 24 2020, 10:45pm

Not yet. Hoping to get another tuner to tune it and see what happens. I'm 99% sure it's something like a bad segment swap in the programming. The tcc locking up in third with no slip on the live data stream means that everything that commands and makes lockup happen is capable of it. However in 4th for some reason it half asses the TC lock up. Duty cycle is maxed out, trans makes plenty of pressure because when limp mode is triggered it slams into gear and it slams all gears not just a harsh 1-2. Fluid level is correct and no leaks.
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Re: 4l80e tcc slip issues.

Postby MIKE91B » Jan 24 2020, 11:04pm

I’d agree with that train of thought. Just curious how this goes.
2015 Reg cab, 2wd, 5.3l, On3 single turbo, E85 conversion, 4.10 rear gear, and HP Tuner software.
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MIKE91B
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Shifting into Fifth Gear [L3]
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Posts: 1596
Topics: 13
Joined: May 23 2015, 3:06am
Years of membership: 4 years of membership4 years of membership4 years of membership4 years of membership
Location: OHIO
Year: 2015
Make/Model: Chevrolet Silverado
Group Membership:
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