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GMC Truck
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2013
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Sierra 1500 4WD V6-4.3L
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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 Pressure
Fuel Pressure
Ignition ON, engine OFF, command the fuel pump relay ON with a scan tool. Verify the
fuel pressure
is between 345-414 kPa (50-60 psi) and does not decrease more than 34 kPa (5 psi) in 1 minute.