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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 >> No Gear Selection

No Gear Selection

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No Gear Selection

Checks Causes
Control Valve Bodies, Channel Plate, Case Blocked channels
Detent Lever Nut loose or missing
Manual Valve Stuck
Spacer Plate/Gaskets Blocked holes