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6L80e does some odd stuff, surging/hunting at WOT?

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Tue, 07/09/2019 - 16:50

#1

GrannySShifting

6L80e does some odd stuff, surging/hunting at WOT?

Thought it was doing odd stuff downshifting but managed to get it to the floor in 2nd without it spinning and rpm wavers for a long while before it seems to get itself figured out and pulls normally in that gear before shifting?

I do notice that Fill Pressure Cmd is 8psi through most of the gear then up near top where its little normalized jumps to 24?

What are the normal PCS1-5 pressures in gear WOT, what should they go to when preparing shift, and what should the do when shift occurs?

This is a RPM trans rebuilt/upgraded unit supposedly

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