Operation CHARM
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GMC Truck
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1989
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Suburban 3/4 Ton 4WD V8-379 6.2L DSL
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Repair and Diagnosis
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Powertrain Management
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Fuel Delivery and Air Induction
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Fuel Pump
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Specifications
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Pressure, Vacuum and Temperature Specifications
Pressure, Vacuum and Temperature Specifications
Normal Fuel Pump Pressure
38 - 45 kPa (5.5 - 6.5 psi.)
Normal Fuel Pump Volume
237 ml (1/2 pint) or more in 15 seconds