* Empty or low fuel tank: The most obvious reason.
* Fuel pump failure: This is a common problem in older vehicles.
* Clogged fuel filter: A dirty filter restricts fuel flow.
* Faulty fuel injectors: These can become clogged or fail.
* Problems with the fuel pressure regulator: This controls fuel pressure in the system.
* Electrical issues: Problems with the fuel pump relay or wiring can prevent the pump from working.
If you're experiencing fuel-related problems, take your Pontiac Montana to a qualified mechanic for diagnosis and repair. Attempting to "reset" the fuel system without understanding the problem could be dangerous and may even damage your vehicle.