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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1004 (Automatic Transmission - 4L80-E/4L85-E (Troubleshooting)) >> Troubleshooting >> Forward Motion in Neutral

Forward Motion in Neutral

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Forward Motion in Neutral

Checks Cause
Manual Valve (319) Valve is mispositioned or stuck.
Forward Clutch Springs (607) Jammed
Forward Clutch Piston (606) Jammed
Forward Clutch Plates (610, 611) Seized or jammed
Forward Clutch Housing (602) The hole is plugged.
Hub (613) The holes are plugged.