The canister vent valve closes the fuel tank vent to prevent outside air from entering the EVAP system during an evaporative system leak test.
Symptoms of Wear or Failure
- Check Engine Light may illuminate
- Fuel tank may be hard to fill
Related Repair Advice
- Evaporative system diagnosis can be difficult and trouble codes can be triggered by sensors and components other than the canister vent valve
- Due to its common location under the vehicle, the vent valve may become clogged with dirt and debris