Measurement - Engine Will Not Start
WARNING: This page is about a different car, the 2018 Nissan Titan XD. However, it is still accessible from the selected car via links, so may be relevant.
- This part of the procedure is for measuring the low pressure system for an engine that will not start.
- Check for air in the fuel with the engine cranking.
- If air in the fuel is present at the inlet of the Stage 1 fuel filter, this indicates air is being ingested in the fuel tank, fuel supply line connections at the fuel tank, or the fuel line between the tank and the Stage 1 fuel filter.
- If air in the fuel is not present before the Stage 1 fuel filter, but present at the outlet of the Stage 1 fuel filter, this indicates air is being ingested at the inlet connection to the Stage 1 fuel filter or the Stage 1 fuel filter.
- Measure drain line restriction with the engine cranking.
Maximum drain line restriction engine cranking (150 RPM minimum)
: 100 kPa (1.02 kg/cm 2 , 14.5 psi)
- Measure inlet restriction with the engine cranking.
Maximum fuel inlet restriction engine cranking (150 RPM minimum)
: 100 kPa (1.02 kg/cm 2 , 14.5 psi)
- Measure the fuel filter restriction with the engine cranking.
- Record the fuel pressure at the inlet of the Stage 2 fuel filter from the fuel pressure gauge or multimeter.
- Record the fuel pressure at the outlet of the Stage 2 fuel filter through CONSULT (Fuel Supply Pressure).
- The fuel pressure reading in CONSULT is in absolute pressure. Make sure the ambient pressure is subtracted from the CONSULT reading so that the pressures are in gage.
- Subtract the inlet reading from the outlet reading to determine the fuel filter restriction.
Maximum Stage 2 fuel filter restriction with engine cranking (150 RPM minimum)
: 34 kPa (0.35 kg/cm 2 , 4.9 psi)