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Home >> Chevrolet >> 2007 >> Chevy Express G2500, Van Cargo, 6.6 6 >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 4L80-E/4L85-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> Diagnostic Information And Procedures >> No Engine Braking - D2

No Engine Braking - D2

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.