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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 154 (Automatic Transmission - 4L80-E/4L85-E - Service, Diagnosis & Troubleshooting) >> Third Gear Starts

Third Gear Starts

WARNING: This page is about a different car, the 2007 GMC Yukon XL and 2007 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.
Third Gear Starts

Checks Cause
Forward Clutch Components
  • Driving Hub (615)
 Plugged holes
  • Plates (610, 611)
 Seized
Direct Clutch Components
  • Piston (619)
 Jammed
  • Spring Assembly (607)
 Jammed
  • Lube Feed Hole
 Blocked
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