I have a 1995 7.3 4x4 with a E4od. It wont upshift. I can shift it from first to second manually but thats it. I have verified power at the shift solenoid connector. Ive replaced the TRS and the VSS. Im leaning towards the shift solenoid pack but just not sure. Trans was supposedly rebuild 2 months ago before I purchased it with this issue.
Im about ready to light this truck on fire! Change accumulator body checked valve body......all good Will not shift on its own out of first and will only manually shift into second. Trans supposedly was rebuild in june...it is spotless inside. I need help!