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Home >> GMC >> 2018 >> Terrain Denali, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 24 (Automatic Transmission - 6T40 (MNH MNK) Or 6T45 (MHG) - Diagnostic Information And Procedures) >> Diagnostic Information And Procedures >> Harsh Or Late Third, Fifth, And Reverse Shift

Harsh Or Late Third, Fifth, And Reverse Shift

WARNING: This page is about a different variant/trim than selected.
Checks Causes
3 - 5 Reverse Clutch Assembly
  • Inspect for damaged splines or improper surface finish on 3 - 5 Reverse Clutch Plates (507 - 509), Backing Plate (510)
  • Inspect for damaged, worn or leaking 3 - 5 Reverse Clutch Piston Seals (504 - 506)
  • Inspect for warped 3 - 5 Rev/4 - 5 - 6 Clutch Housing (516)
  • Inspect for broken or fatigued 3 - 5 Reverse Clutch Waved Plate (507)