1. Stop the car and turn off the engine.
2. Get out of the car and open all the windows to let in fresh air.
3. Call for roadside assistance or have the car towed to a mechanic.
4. Do not attempt to start the car again until the gas leak has been fixed.
Potential causes of a gas smell in a Nissan Xterra:
* A loose or damaged gas cap: This can allow gas fumes to escape.
*A cracked or damaged fuel line: This can leak gas onto the ground.
*A leaking fuel injector: This can also leak gas onto the ground.
*A damaged evaporative emissions system: This system captures gas vapors and sends them back to the engine to be burned. If this system is damaged, gas vapors can escape into the air.
It's important to have a qualified mechanic diagnose the cause of the gas smell and make the necessary repairs. Driving with a gas leak is dangerous and could lead to a fire or explosion.
