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Home >> Hummer >> 2007 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 1055 (Automatic Transmission - 6L50/6L80/6L90 - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Diagnostic Information And Procedures >> No Reverse Gear

No Reverse Gear

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
No Reverse Gear

Checks Causes
Control Valve Upper Body Assembly (304)
  • Inspect for worn, damaged, or sticking 3-5 reverse regulator valve (336) and valve spring (326).
  • Inspect for damaged or missing #5 checkball.
Control Valve Lower Body Assembly (307) Inspect for worn, damaged, or sticking clutch select solenoid valve 3 (352) and valve spring (353).