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In a Hyundai Elantra, if the check engine light flashes, it could indicate a leak in the Evaporative Emission Control System, specifically in the evaporative canister. This typically points to a small leak rather than a large one. The canister plays a crucial role in capturing fuel vapor and redirecting it to the fuel tank for later use. This process helps reduce harmful emissions and improves fuel efficiency. If a leak is present, the check engine light will come on, and it's important to take care of it promptly to avoid potential fire hazards. Replacing the canister usually costs between $480 and $600.
The Hyundai Elantra with the 7e8 engine code indicates a small leak in the Evaporative Emission Control System.