Where is the vapor sensor located at in a 2001 Pontiac Montana van?

In a 2001 Pontiac Montana van, the vapor sensor is typically located near the fuel tank, often on or near the evaporative emissions canister. It may also be integrated into the fuel system components. To access it, you might need to lift the vehicle and remove any protective shields or panels that cover the fuel tank area. Always refer to the vehicle's service manual for specific details and procedures.