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Home >> Cadillac >> 2019 >> ATS V >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 8L45 (M5N M5T) Or 8L90 (M5U) - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> Harsh, Soft, Delayed or Slipping First, Third, Fifth, Sixth or Seventh Shift

Harsh, Soft, Delayed or Slipping First, Third, Fifth, Sixth or Seventh Shift

Checks Causes
1-3-5-6-7 Clutch Assembly (57)
  • Inspect for damaged or worn 1-3-5-6-7 clutch plates (511 - 512).
  • Inspect for damaged 1-3-5-6-7 clutch piston (509), clutch housing (506), return spring (515), and piston dam (516).
  • Inspect for damaged 1-3-5-6-7 clutch piston dam retaining ring (517).
  • Inspect for cut, worn or damaged 1-3-5-6-7 clutch piston seals (507, 508), and dam seal (510).
  • Inspect for improper selective 1-3-5-6-7 clutch backing plate retaining ring (514).
  • Inspect for damaged 1-3-5-6-7 clutch backing plate (513). Inspect for worn splines on backing plate.