DIAGNOSIS
| SYMPTOM | PROBABLE CAUSE | REMEDY |
|---|---|---|
| Engine will not start or hard to start | Vacuum hose disconnected or damaged | Repair or replace |
| EGR valve (Stepper Motor) is not closed. | Repair or replace | |
| Malfunction of evaporative emission purge solenoid | Repair or replace | |
| Rough idle or engine stalls | EGR valve (Stepper Motor) is not closed. | Repair or replace |
| Vacuum hose disconnected or damaged. | Repair or replace | |
| Malfunction of PCV valve | Replace | |
| Malfunction of purge control system | Check the system; If there is a problem, check its component parts. | |
| Engine hesitates or poor acceleration | Malfunction of EGR system | Check the system; If there is a problem, check its component parts. |
| Excessive oil consumption | PCV line clogged | Check PCV system |
| Poor fuel mileage | Malfunction of EGR system | Check the system; If there is a problem, check its component parts. |
DIAGNOSIS CHART