GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2001
🢒
Yukon XL - 4WD
🢒
Transmission/Transaxle
🢒
Automatic Transmission - 4L80-E
🢒 Third Gear Starts
Checks
Cause
Forward Clutch Components
Driving Hub (615)
Plugged holes
Plates (610, 611)
Seized
Direct Clutch Components
Piston (619)
Jammed
Spring Assembly (607)
Jammed
Lube Feed Hole
Blocked