GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Generic
🢒
2002
🢒
Unit Repair
🢒
Transmission/Transaxle
🢒
Automatic Transmission - 4L80-E
🢒 Harsh Shift 3 to 4
Harsh Shifts -- Third to Fourth
Checks
Cause
Spring Assembly (532)
Not compressing evenly
Air Bleed
Plugged
