Fuel Pump: Inspection

INSPECT FUEL PUMP
1. Inspect fuel pump resistance.
  1. Using an ohmmeter, measure the resistance between the terminals.
    Standard resistance: 0.2 to 3.0 Ω at 20°C (68°F)
2. Inspect fuel pump operation
  1. Apply battery voltage to both the terminals.
    Check that the pump operates.
    NOTE:
    These tests must be done quickly (within 10 seconds) to prevent damage to the pump.
    
    Keep fuel pump as far away from the battery as possible.
    
    Always do the switching at the battery side.
    Fig 1: Inspecting Fuel Pump
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