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Home >> GMC >> 2003 >> Yukon Denali >> Repair and Diagnosis >> External Pages >> Different car >> Section 499 (Automatic Transmission - 4L80-E/4L85-E (Troubleshooting)) >> Troubleshooting >> No Second Gear Engine Braking - D2

No Second Gear Engine Braking - D2

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 Second Gear Engine Braking - D2

Checks Cause
Fluid Pressure Too low
Direct Clutch Housing (623)
  • The internal diameter of the splines are worn.
  • The outer band surface is worn.
Front Band (628) Broken, worn, or not anchored
Apply Pin (55) Too short or binding in the case
Apply Clip (56) Broken or missing
Piston (58) Cracked, broken, or binding
Seal (57) Damaged or worn
Case (7) Cracked or damaged
Spacer Plate (46) Damaged
Gasket (48) Torn or pinched
Valve Body Bolts (35) Loose, broken, or missing