midnight01

So I am hoping that someone has experienced this with their truck as well, my 06 2500 HD CTD w/48RE, is having a delayed shift in 1st and 2nd gear. The truck is throwing a P0868 code and P1757 code one is low transmission fluid pressure and the other is 3 psi is present when 0 psi is demanded. I am at a loss i have replaced the transducer with the BD upgraded one, done the GM conversion Solinoid, and a new wiring harness. Someone please help. The transmission is a stage 6 ATS unit.

Lary Ellis (Top)

What does ATS say about it?

midnight01

They said its electrical but i don't know how its possible when i have replaced everything electrical.

patdaly

You say wiring harness, but the one in the trans or the external one?

I'm not familiar with the 3rd gens, but the second gens have a connector underneath the area by the drivers toe kick that can be an issue.

Time to start tracing wires/connector up to the PCM.

midnight01

I replaced the internal one. Could it be a bad or corrupt stock file in the ECM?

Z-MAN

I have the same issue. Can you please let me know what you found out?