Operation CHARM
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GMC Truck
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1988
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V 1500 P/U 4WD V8-454 7.4L
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Repair and Diagnosis
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Specifications
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Pressure, Vacuum and Temperature Specifications
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Fuel Delivery and Air Induction
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Fuel Pump
Fuel Pump
Fuel Pressure
27.5-44.8 kPa (4 -6.5 psi)