Inspection And Verification
WARNING: This page is about a different variant/trim than selected.
WARNING:
Do NOT
carry out any work on the fuel system with the engine running. The fuel pressure within the system can be as high as 2000 bar (29, 008 lb/in2
). Failure to follow this instruction may result in personal injury.
CAUTION:
Before disconnecting any part of the system, it is imperative that all dust, dirt and debris is removed from around components to prevent ingress of foreign matter into the fuel system. Failure to follow this instruction may result in damage to the vehicle.
NOTE:
Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests.
- Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage.
VISUAL INSPECTION CHART
MECHANICAL ELECTRICAL - Fuel level
- Contaminated fuel
- Fuel supply line(s)
- Fuel return line(s)
- High-pressure fuel supply line(s)
- Fuel tank filler pipe
- Fuel leak(s)
- Fuel tank
- Fuel filler cap
- Fuel filter
- Push connect fittings
- Fuel rail
- Fuel injection pump
- Exhaust gas recirculation system
- Battery charge and condition
- Fuse(s)
- Fuel pump module relay
- Fuel pump module
- Electrical connector(s)
- Damaged or corroded wiring harness
- Fuel volume control valve
- Fuel pressure control valve
- Engine control module
- If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
- If the cause is not visually evident, verify the symptom and refer to the Symptom Chart, alternatively check for Diagnostic Trouble Codes (DTCs) and refer to the DTC Index.