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Chevrolet
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2005
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Silverado 1500 HD, 4WD
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Repair and Diagnosis
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Transmission
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Automatic Trans
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Automatic Transmission - 4L80-E/4L85-E - Service, Diagnosis & Trouble Shooting
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Troubleshooting
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Engine Starts in Gear
Engine Starts in Gear
Engine Starts in Gear
Checks
Cause
Manual Valve (319)
Valve is not engaged to the detent lever.
Valve is stuck in the wrong position.
Park/Neutral Safety Switch
The switch is not operating.