Low-Pressure Pump
- Disconnect electrical connector at high-pressure pump. Have assistant turn ignition to "RUN" position and listen for "buzzing" sound at fuel tank. If "buzzing" sound is heard, and high-pressure pump operates, low-pressure pump is good.
- If low-pressure and high-pressure pumps do not operate, check inertia switch. If low-pressure pump does not operate (high-pressure pump operable), check low-pressure pump electrical feed circuit. If low-pressure pump operates (high-pressure pump inoperable), check high-pressure pump electrical feed circuit.