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2009
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Impala V8-5.3L
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Repair and Diagnosis
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Powertrain Management
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Tune-up and Engine Performance Checks
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Fuel Pressure
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Specifications
Fuel Pressure: Specifications
Fuel Pressure
Ignition ON/Engine OFF
345-414 kPa (50-60 psi)
Should not decrease more than 34 kPa (5 psi) in 1 minute