Canister Purge Valve

Symptoms of Wear or Failure

  • Check Engine Light may illuminate
  • Rougher than normal engine idle

Related Repair Advice

  • Evaporative system diagnosis can be difficult and trouble codes can be triggered by sensors and components other than the canister purge valve
  • It is not uncommon for bits of charcoal to separate from the charcoal brick inside the canister and cause the canister purge valve to stick in the open or closed position