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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 Overrun Braking - D3

No Overrun Braking - D3

No Overrun Braking - D3

Checks Cause
Clutch Plates (508, 509) The splines or the plate are worn.
Thrust Washer (218) Damaged or worn
Output Shaft (671) The shaft or the splines are broken.
Seals Cut or nicked
Checkball Leaking
Piston (505) Jammed, cracked, or damaged
Housing (504) Cracked or damaged
Sun Gear (650) Worn
Spring Assembly (506) Jammed
Oil Feed Plugged