Symptom Chart
WARNING: This page is about a different variant/trim than selected.
| SYMPTOM |
POSSIBLE CAUSES |
ACTION |
| Difficult to start |
- Exhaust Gas Recirculation (EGR) valve stuck open
|
- Using the manufacturer approved diagnostic system, perform routine - Inline diagnostic unit 2 diagnostic test - Exhaust gas recirculation valve. Clear the DTCs and retest
|
| Poor/erratic idle |
| Lack of power when accelerating |
| Engine stops/stalls |
- Exhaust Gas Recirculation (EGR) valve stuck open
- Breather system disconnected/restricted/blocked
|
- Using the manufacturer approved diagnostic system, perform routine - Inline diagnostic unit 2 diagnostic test - Exhaust gas recirculation valve. Clear the DTCs and retest
- Check for Exhaust Gas Recirculation (EGR) DTCs
- Check the engine breather system
- Check the oil separator
|
| Excessive fuel consumption |
- Exhaust Gas Recirculation (EGR) valve stuck open
- Exhaust Gas Recirculation (EGR) not operating
- Breather system restricted/blocked
|
| Excessive black smoke |
| Excessive emissions |
| Excessive blow-by |
- Breather system restricted/blocked
|
- Check the engine breather hoses
- Check the oil separator
|
| Engine oil leaks |
- Breather system restricted/blocked
|
- Check the engine breather hoses
- Check the oil separator
|
| Rattling noise from the EGR valve/cooler |
Leak in the vacuum system which controls the cooler bypass valve |
Check the integrity of the vacuum pipes and pump |