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Home >> Chevrolet >> 2018 >> Suburban 3500 HD LT >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 8L90 (M5U) - Diagnostic Information And Procedures >> Diagnostic Information And Procedures >> Harsh, Soft, Delayed Or Slipping First, Second, Seventh, Eighth, Or Reverse Shift

Harsh, Soft, Delayed Or Slipping First, Second, Seventh, Eighth, Or Reverse Shift

Checks Causes
1-2-7-8 Reverse Clutch Assembly
  • Inspect for damaged or worn 1-2-7-8 Reverse clutch plates (585 - 588).
  • Inspect for damaged 1-2-7-8 Reverse clutch piston (582), clutch piston housing (581), return spring (583), and apply ring (584).
  • Inspect for damaged 1-2-7-8 Reverse clutch piston housing retaining ring (580).
  • Inspect for damaged or improper selective 1-2-7-8 Reverse clutch backing plate (589). Inspect for worn splines on backing plate.