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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

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