Canister Vent Valve

By Daniel Dillon, July 26, 2009

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

1 User Comment

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By , July 13, 2017
the vent valve is also called the vent solenoid, I think it can also be called the shut-off valve, I am having a hard time locating this part for a 95 volvo 850 turbo

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