What The Sources Say About It
- Stores fuel vapor. With the engine running, the computer opens the purge valve and pulls the vapor out of the canister. Fresh air comes in through the canister air filter and vent valve. (source)
- ORVR canisters capture refueling vapor before it reaches the pump nozzle. (source)
- FCA recalled about 81,000 Chrysler 300, Challenger and Charger cars whose canister might not absorb enough vapor during refueling. (source)
Codes That Point Here
P0441Evap Emission Control System Incorrect Purge FlowP0455Evap Emission Control System Gross Leak DetectedP0456Evap System Very Small Leak
What It Costs
Published estimates put a charcoal canister at $558 to $643 at RepairPal. See every price row. For a real example of pricing the test before the part, see what to do after a failed smog check.
By Anthony Limpert, co-founder of Supercanic in San Jacinto, California, a shop with ASE certified mechanics. Updated November 12, 2026.
Author Source EEAT Authors · Anthony's Author Page
Sources For This Page
- Diagnosing Toyota's Key Off Evap System (February 2016), MOTOR Magazine, read 2026-11-12
- Fact Sheet, Final Rule Determining Widespread Use of ORVR and Waiver of Stage II, US EPA, read 2026-11-12
- Emissions Recall UB4, Evaporative Emissions Canister, Revision 6 (April 2020), FCA US LLC, read 2026-11-12
- Fuel Evaporative Canister Replacement Cost Estimate, RepairPal, read 2026-11-12