Auto Systems and Repair: Canister Vent Valve

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

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