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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 155 (Automatic Transmission - 6L50/6L80/6L90 - Service, Diagnosis & Troubleshooting) >> Harsh, Soft, Delayed or Slipping Second or Sixth Gear

Harsh, Soft, Delayed or Slipping Second or Sixth Gear

WARNING: This page is about a different car, the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Cadillac Escalade EXT, 2007 Cadillac Escalade ESV, and 2007 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
Harsh, Soft, Delayed or Slipping Second or Sixth Gear

Checks Causes
Center (with 2-6 Low and Reverse Clutch) Support Assembly (67)
  • Inspect for damaged or worn 2-6 clutch plates (452 and 454).
  • Inspect for damaged 2-6 clutch backing plate (451). Inspect for worn splines on backing plate.
  • Inspect for damaged 2-6 clutch backing plate retaining ring (450).
  • Inspect for damaged 2-6 clutch piston assembly (457), spring (456), retaining ring (455), and center support assembly (459).