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GMC Truck
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1984
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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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Diagrams
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Vacuum and Vapor Hose Diagrams
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Thermal Vacuum Valve, Vacuum/Dist. Advance
Thermal Vacuum Valve, Vacuum/Dist. Advance
Fig. 15 Typical EGR/EFE/DS vacuum system. 1983-84 V8 gasoline engines less solenoid control:
