GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Buick
🢒
2009
🢒
Lucerne
🢒
Transmission
🢒
Automatic Transmission - 4T80-E
🢒 No Torque Multiplication
Checks
Causes
Drive Sprocket Support
•
Broken or detached from case
•
Spline damage
Torque Converter - Stator
•
Poor acceleration - stator is freewheeling
•
Poor high speed performance - stator is locked up
