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Hummer
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2007
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H3 Automatic
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Repair and Diagnosis
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Transmission
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Hydraulic Diagrams
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Automatic Transmission - 4L60-E/4L65-E/4L70-E - Removal & Installation, Overhaul, Troubleshooting & Diagnosis
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Symptoms - Automatic Transmission
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No Second Gear, No Fourth Gear and No Reverse Gear
No Second Gear, No Fourth Gear and No Reverse Gear
No Second Gear, No Fourth Gear and No Reverse Gear
Checks
Causes
Reaction Sun Shell (670)
Broken spline on reaction sun shell/replace shell.