Canister Vent Valve
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 a Bad or Failing Canister Vent Valve
- Check Engine Light may illuminate
- Fuel tank may be hard to fill
Canister Vent Valve 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
Related Questions
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The following codes: p0171 and p0131
The check engine light does stay on it throws the same code every time but goes off and on