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Home >> Cadillac >> 2018 >> Escalade Base, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 21 (Automatic Transmission - 8L90 (M5U) - Diagnostic Information And Procedures) >> Diagnostic Information And Procedures >> Harsh, Soft, Delayed Or Slipping First, Second, Third, Fourth, Fifth, Or Reverse Shift

Harsh, Soft, Delayed Or Slipping First, Second, Third, Fourth, Fifth, Or Reverse Shift

WARNING: This page is about a different car, the 2018 Chevrolet Suburban 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Checks Causes
1-2-3-4-5 Reverse Clutch Assembly
  • Inspect for damaged or worn 1-2-3-4-5 Reverse clutch plates (592 - 595).
  • Inspect for damaged 1-2-3-4-5 Reverse clutch piston (406), clutch piston dam (402), and return spring (405).
  • Inspect for cut, worn or damaged 1-2-3-4-5 Reverse clutch piston seals (403, 408), piston O-ring seal (404), dam seal (401), and dam inner O-ring seal (409).
  • Inspect for damaged 1-2-3-4-5 Reverse clutch piston dam retaining ring (400).
  • Inspect for damaged or improper selective 1-2-3-4-5 Reverse clutch backing plate retaining ring (590).
  • Inspect for damaged 1-2-3-4-5 Reverse clutch backing plate (591). Inspect for worn splines on backing plate.