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GMC Truck
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1982
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G 2500 3/4 Ton Van V8-350 5.7L VIN L 4-bbl
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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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3L80/3L80HD (400/475) Automatic Transmission
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Will Not Hold In Park
Will Not Hold In Park
1. Manual control linkage improperly adjusted.
2. Internal linkage defective; check for chamfer on
actuator
rod sleeve.
3. Parking pawl broken or inoperative.