| Engine cranks, but does not fire |
- Engine breather system disconnected/restricted
- Ignition system
- Fuel system
- Electronic engine controls
|
- Ensure the engine breather system is free from restriction and is correctly installed
- Check for fuel, ignition and electronic engine control system DTCs and refer to the relevant DTC Index
|
| Engine cranks and fires, but will not start |
- Evaporative emissions purge valve
- Fuel pump
- Spark plugs
- Ignition coil failure(s)
|
- Check for purge valve, fuel and ignition system DTCs and refer to the relevant DTC Index
|
| Difficult cold start |
- Check engine coolant level/anti-freeze content
- Battery
- Electronic engine controls
- Exhaust gas recirculation (EGR) valve stuck open
- Fuel pump
- Evaporative emissions purge valve
|
- Check the engine coolant level and condition. Refer to Refer to Specifications
information.
- Ensure the battery is in a fully charged and serviceable condition
- Check for electronic engine control, EGR valve, fuel system and purge valve related DTCs and refer to the relevant DTC Index
|
| Difficult hot start |
- Injector leak
- Electronic engine controls
- Evaporative emissions purge valve
- Fuel pump
- Ignition system
- EGR valve stuck open
|
- Carry out injector leak tests, install new injectors as required. Refer to Refer to Fuel Injectors
information.
- Check for electronic engine control, EGR valve, fuel system, ignition system and purge valve related DTCs and refer to the relevant DTC Index
|
| Difficult to start after hot soak (vehicle standing, engine off, after engine has reached operating temperature) |
- Injector leak
- Electronic engine controls
- Evaporative emissions purge valve
- Fuel pump
- Ignition system
- EGR valve stuck open
|
- Carry out injector leak tests, install new injectors as required. Refer to Refer to Fuel Injectors
information.
- Check for electronic engine control, EGR valve, fuel system, ignition system and purge valve related DTCs and refer to the relevant DTC Index
|
| Engine stalls soon after start |
- Breather system disconnected/restricted
- ECM relay
- Electronic engine controls
- Ignition system
- Air intake system restricted
- Air leakage
- Fuel lines
|
- Ensure the engine breather system is free from restriction and is correctly installed
- Check for ECM relay, electronic engine control and ignition system DTCs and refer to the relevant DTC Index
- Check for blockage in air cleaner element and air intake system
- Check for leakage in air intake system
- Check fuel lines for blockage/restriction
- Clear blockage/restriction and install new fuel lines as required
|
| Engine hesitates/poor acceleration |
- Fuel pressure, fuel pump, fuel lines
- Injector leak
- Air leakage
- Electronic engine controls
- Ignition system
- EGR valve stuck
- Transmission malfunction
- Restricted pedal travel (carpet, etc)
|
- Carry out fuel pressure check
- Check fuel lines for blockage/restriction
- Clear blockage/restriction and install new fuel lines as required
- Check for fuel system DTCs and refer to the relevant DTC Index
- Carry out fuel injector leak tests, install new injectors as required. Refer to: Fuel Injectors
information.
- Check for leakage from air intake system
- Check for electronic engine control, EGR valve, ignition system and transmission related DTCs and refer to the relevant DTC Index
- Ensure accelerator pedal is free from restriction
|
| Engine backfires |
- Fuel pump, fuel lines
- Air leakage
- Electronic engine controls
- Ignition system
- Sticking variable camshaft timing (VCT) hub
|
- Check for fuel system related DTCs and refer to the relevant DTC Index
- Check fuel lines for blockage/restriction
- Clear blockage/restriction and install new fuel lines as required
- Check for leakage from air intake system
- Check for electronic engine control, ignition system and VCT related DTCs and refer to the relevant DTC Index
|
| Engine surges |
- Fuel pump, fuel lines
- Electronic engine controls
- Ignition system
|
- Check for fuel system related DTCs and refer to the relevant DTC Index
- Check fuel lines for blockage/restriction
- Clear blockage/restriction and install new fuel lines as required
- Check for electronic engine control and ignition system related DTCs and refer to the relevant DTC Index
|
| Engine detonates/knocks |
- Fuel pump, fuel lines, fuel quality
- Air leakage
- Electronic engine controls
- Sticking VCT hub
|
- Check for fuel system related DTCs and refer to the relevant DTC Index
- Check fuel lines for blockage/restriction
- Clear blockage/restriction and install new fuel lines as required
- Check for leakage from air intake system
- Check for electronic engine control and VCT related DTCs and refer to the relevant DTC Index
|
| Fuel gauge reading empty with fuel in the fuel tank |
- Active fuel level sensor circuit open circuit
- Passive fuel level sensor circuit open circuit
- Instrument cluster internal failure
|
- Using the manufacturer approved diagnostic system, perform the guided diagnostic routine - Fuel Level Sensor Test
|
| Fuel gauge not reading empty with no fuel in the fuel tank |
- Jet pump fault
- Fuel crossover tube blocked or leaking
|
- Using the manufacturer approved diagnostic system, check datalogger signals - Fuel Sender 2 (0x61B8) - Fuel Sender 1 (0x61B7). Refer to the table below. If the right sensor reads empty when the left sensor reads more than empty, check that the jet pump is transferring fuel from the left side to the right side
|