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Home >> Cadillac >> 2009 >> Escalade EXT >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 6L80/6L90 - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> Diagnostic Information And Procedures >> No First Gear

No First Gear

Checks Causes
Center (with 2-6 Low and Reverse Clutch) Support Assembly (67)
  • Inspect for damaged low clutch sprag assembly (467). Holding the sprag assembly with the retaining ring facing up, and the inner race of the sprag assembly fixed, the outer race should freewheel counterclockwise.
  • Inspect for cut, worn, or damaged low clutch sprag seal (468).