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Home >> Buick >> 2011 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Automatic Transmission - 4T80-E - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> Forward Motion in N

Forward Motion in N

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Forward Motion in N

Checks Causes
DEFINITION: Forward Motion in Neutral
Forward Clutch Housing Feed hole plugged, inspect tower
Forward Clutch Piston Jammed
Forward Clutch Plates Seized or jammed
Forward Clutch Springs Jammed
Forward/Coast Clutch Support Hub Holes plugged
Manual Valve Mispositioned or stuck
Shift Linkage
  • Mispositioned
  • Disconnected