9. Bleed The High Pressure Fuel System
9. BLEED THE HIGH PRESSURE FUEL SYSTEMPurpose:
Bleed the high pressure fuel system to check if the hard start/no start condition is being caused by air in the fuel system.
Bleed The High Pressure Fuel System
- Bleed the high pressure fuel system. Refer to the Fuel Delivery and Air Induction, Fuel System, Fuel System Bleeding - High Pressure, Diesel Engine.
- If the fuel is aerated after completing the fuel system bleeding procedure, repeat the fuel system bleed procedure.
Recommended Procedure:
Bleed the high pressure fuel system. Refer to the Fuel Delivery and Air Induction, Fuel System, Fuel System Bleeding - High Pressure, Diesel Engine.
If the fuel is aerated after completing the Fuel System Bleeding procedure, repeat the Fuel System Bleed procedure.
If the vehicle starts and runs while the bleed procedure is carried out and fuel is not aerated, the vehicle may have run out of fuel or the fuel filters may have been changed recently. Carry out the High Pressure Fuel System Test to verify correct operation. 25. High Pressure Fuel System Test
If the vehicle does not start or the fuel is aerated, carry out the Sufficient Clean Fuel Test to continue diagnosis. 10. Sufficient Clean Fuel Test
Tools Required:
Scan tool