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Home >> GMC >> 2011 >> Yukon Base, 5.3 3 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Automatic Transmission - 2ML70 - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> Harsh, Soft, Delayed or Slipping 1-2-3-4 Shift

Harsh, Soft, Delayed or Slipping 1-2-3-4 Shift

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Harsh, Soft, Delayed or Slipping 1-2-3-4 Shift

Checks Causes
Hybrid Low 1-2 and Hybrid Direct 2-3-4 Clutch Assembly
  • Inspect for damaged or worn 1-2 and 2-3-4 clutch plates.
  • Inspect for damaged 1-2 and 2-3-4 clutch piston, piston housing, spring, and dam assembly.
  • Inspect for damaged 1-2 and 2-3-4 clutch piston dam retaining ring.
  • Inspect for cut, worn, or damaged 1-2 and 2-3-4 clutch piston seal, inner seal, and housing seals.
  • Inspect for improper selective 1-2 and 2-3-4 clutch backing plate retaining ring.
  • Inspect for damaged 1-2 and 2-3-4 clutch backing plate. Inspect for worn splines on the backing plate.