Q: Strong gas odor after vehicle is shut off

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When i shut off my suv and get put i smell gas fumes.it smells for some time after shutting it off

My car has 143400 miles.
My car has an automatic transmission.

Hello there, many different faults can cause your 2000 GMC Jimmy to have a gas smell after shutoff. You are able to smell the fuel vapors due to a EVAP leak. The most common would be a loose gas cap, faulty solenoid , charcoal canister, or a gas tank seal. Once the leak gets bad enough the ECU will detect the leak and set a check engine light. A qualified technician, such as one from YourMechanic, will be able to diagnose your gas smell and perform any repairs required.

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