1) Check the fuel lines: Make sure that the fuel lines leading to and from the rear tank are properly connected and free from any leaks or blockages. Check for any cracks or kinks in the fuel line.
2) Check the fuel selector valve: The fuel selector valve is responsible for controlling the flow of fuel between the front and rear tanks. Make sure that the valve is properly positioned to allow fuel to flow to the rear tank.
3) Check the fuel pump: The fuel pump is responsible for delivering fuel to the engine. Make sure that the fuel pump is properly functioning and that it is providing sufficient pressure to the rear tank.
4) Check the fuel filter: The fuel filter helps to remove contaminants from the fuel before it reaches the engine. Make sure that the fuel filter is clean and free from any restrictions.
5) Check the fuel tank vent: The fuel tank vent helps to prevent the build-up of pressure in the fuel tank. Make sure that the fuel tank vent is clear and unobstructed.
If you have checked all of these items and the rear tank is still not working, you may need to have the vehicle diagnosed by a qualified mechanic.
