Emission Control System - General Information: Troubleshooting
EMISSION CONTROL SYSTEM TROUBLESHOOTING
| Symptom | Suspect area |
|---|---|
| Engine will not start or struggle to start | Vapor hose damaged or disconnected |
| Engine struggle to start | Malfunction of the Purge Control Solenoid Valve |
| Rough idle or engine stalls | Vapor hose damaged or disconnected |
| Malfunction of the PCV valve | |
| Rough idle | Malfunction of the Evaporative Emission Control System |
| Excessive oil consumption | Positive crankcase ventilation line clogged |