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Home >> Saturn >> 2000 >> LS L4-2.2L VIN F >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Component Tests and General Diagnostics >> Fuel System Diagnostic Charts >> 5 - Fuel System Leakdown Test >> Preliminary Information
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Preliminary Information




The fuel system leakdown tests will determine if the fuel system is able to hold fuel pressure when the fuel pump is not operating. The system must hold pressure to ensure that the fuel supply circuit (fuel lines, filter, pressure regulator, lines, and fuel rail) is full of fuel. When the fuel supply is completely charged, fuel will be available at the injectors as soon as the ignition is turned On.
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