Operation CHARM
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GMC Truck
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1993
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G 1500 1/2 Ton Van V6-262 4.3L VIN Z
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Repair and Diagnosis
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Transmission and Drivetrain
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Automatic Transmission/Transaxle
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Testing and Inspection
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Symptom Related Diagnostic Procedures
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Forward Motion In Neutral
Forward Motion In Neutral
1. Manual valve stuck.
2. Forward clutch springs, piston, and plates jammed.
3. Forward clutch housing and hub hole(s) plugged.