GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Chevrolet
🢒
2006
🢒
Chevrolet W-Series Commercial W4 (W3500/W4500)
🢒
Transmission/Transaxle
🢒
Automatic Transmission - 4L80-E/4L85-E
🢒 Soft Shift D3 to D2
Soft Shift -- Drive Third to Drive Second
Checks
Cause
Ball Check
Missing
Orifices
Incorrect sizes
