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EVAP emission system-large leak detected for 2008 Kia Sportage and the gas cap has been replaced 2 times in the last month. which to fix 1st.. Faulty selenium or where to look/fix in a leak in emission system?

Vehicle: 2008 Kia Sportage

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Hi there,

Normally the best method for testing on these is to have a smoke test done to locate the leak. The most common issue is the vent control valve. This is located on the charcoal canister under the car.

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