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Chevrolet
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2007
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Chevy Express G2500, Van Cargo, 6.6 6
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Repair and Diagnosis
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Transmission
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Hydraulic Diagrams
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Automatic Transmission - 4L80-E/4L85-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis
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Diagnostic Information And Procedures
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No First Gear - D4
No First Gear - D4
No First Gear - D4
Checks
Cause
Low Roller Assembly (644)
Assembly is not attached
Broken race
Center Support (640)
Broken support or broken splines
Case (7)
Check for damage near the center support.
Retainer Rings (633, 643)
Rings are not seated.