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Home >> GMC >> 2009 >> Acadia SLT, FWD >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 6T75 - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> Diagnostic Information And Procedures >> Harsh Garage Shift

Harsh Garage Shift

Checks Causes
Input Carrier Assembly (470) Inspect for worn or stripped Ring Gear Splines
Case Assembly (51)
  • Inspect for damaged or fatigued 1-2-3-4 Clutch Wave Plate (458) and Low & Reverse Clutch Wave Plate (450)
  • Inspect for stripped or worn splines on 1-2-3-4 Clutch Plate (456)
  • Inspect for improperly positioned or plugged Low Reverse Piston (408) air bleed
  • Inspect for correct fluid level