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Home >> GMC >> 2004 >> Yukon Denali >> Repair and Diagnosis >> External Pages >> Different car >> Section 417 (Automatic Transmission - 4L80-E/4L85-E (Troubleshooting)) >> Troubleshooting >> No First Gear - D4

No First Gear - D4

WARNING: This page is about a different car, the 2004 GMC Yukon XL, 2004 Chevrolet Suburban, and 2004 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
No First Gear - D4

Checks Cause
Low Roller Assembly (644)
  • Assembly is not attached
  • Broken race
Center Support (640) Broken support or broken splines
Case (7) Check for damage near the center support.
Retainer Rings (633, 643) Rings are not seated.