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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 237 (Automatic Transmission - 4L80-E/4L85-E (Service & Replacement)) >> Diagnostic Information and Procedures >> No Torque in Reverse and Third

No Torque in Reverse and Third

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Savana Special, 2003 GMC Savana Camper Special, 2003 GMC Savana, 2003 Chevrolet RV Cutaway, and 2003 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
No Torque In Reverse & Third

Checks Cause
Forward Clutch Hub (613) The hub is broken.
Snap Ring (616a) The ring is not seated.
Forward Clutch Housing (602) The housing is broken.
Direct Clutch Piston (619) The piston is broken.
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