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Home >> Chevrolet >> 1987 >> S10/T10 P/U 2WD L4-151 2.5L >> Repair and Diagnosis >> Powertrain Management >> Tune-up and Engine Performance Checks >> Fuel Pressure >> Testing and Inspection >> Fuel Pump Flow Test
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Fuel Pump Flow Test

ALCL Connector:





FUEL FLOW TEST
- Disconnect the fuel feed line.
- Apply battery boltage to the fuel pump test terminal (terminal "G" of ALCL connector).
- Fuel Pump should supply 1/2 pint or more in 15 seconds.
- If flow is below minimum, check for fuel restriction. If there is no restriction, check pump pressure.
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