greenvortec97

iTrader: (1)

Car won't shift at WOT unless i back out of the pedal a bit. 100% to 38%

turbo fbody, 4l80e swap. 408 etc yada yada.

car is driving me nuts, would like some input..

things i've tried so far.

added/subtracted lead time using Bluecat trans tool

checked fluid, fluid is good.

level is good.

checked transmission connections, connections are good.

Would appreciate a little bit of help.

attached are my config file, tune file, and log.

greenvortec97

iTrader: (1)

Update.. Transmission was gone through and was good. Went ahead and refreshed with new clutch pack and band


Problem still persists. Have checked continuity on all transmission wiring

simman22

iTrader: (25)

Any luck on this issue?

greenvortec97

iTrader: (1)

none, i did drop my shift points to 5500 and it shifts at WOT now, but no dice in getting it to go over 6k

odd boy

good info

greenvortec97

iTrader: (1)

It was the bushing in the pump that came out

Monte4ever

iTrader: (2)

Finally, someone that actually came back and reported what they found.

greenvortec97

iTrader: (1)

Yeah it started walking out, after it was fixed I was able to shift above 5500

Monte4ever

iTrader: (2)

"On a 1-2 shift issue I would look at the tune first , i know your ajusting the MPH tables but what about the RPM I would lower both. If that does not fix it you have a trans problem that a shift kit will not likley fix .Burned band likely." (Perfomabuilt trans)

This is exact what my 4l80e is doing and what I have done to try to correct it. Looks like a rebuild or purchase is in my future.

MaroonMonsterLS1

A pump bushing walking out doesn't really seem to make much sense at all as to why it wouldn't shift

And if the trans was checked out...that should have been caught anyway?