Where is gas tank vent on 2003 sonoma?

On a 2003 GMC Sonoma, the gas tank vent is typically located at the top of the fuel tank. It connects to the evaporative emissions system, allowing pressure to equalize as fuel is added or consumed. If you're checking for the vent line, it usually runs from the top of the tank to the charcoal canister in the engine compartment. Make sure to consult a service manual for specific diagrams and details if you're performing maintenance.