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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) >> No Engine Braking - D2

No Engine Braking - D2

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.
No Engine Braking - D2

Checks Cause
Bushing (234) Worn or damaged
Thrust Washer (218) Worn or damaged
Rear Gear set Spalled or broken
Reaction Drum and Carrier (651) Broken
Mainshaft (662) The shaft or the splines are broken.
Output Shaft (671) The shaft or the splines are broken.
Sun Gear Shaft (649) The shaft or the splines are broken.