Here's why:
* Fuel Injection: The 1995 Duravan 3500 likely uses fuel injection, which relies on an electric fuel pump to deliver pressurized fuel to the engine.
* Location: The fuel pump is typically located within the fuel tank, and it's controlled by the engine control module (ECM).
Note: While the fuel pump is electric, it's also important to consider the fuel pump relay, which acts as an electrical switch to control the pump's operation.
If you're experiencing fuel pump issues, it's best to consult your owner's manual or a qualified mechanic for specific information and troubleshooting guidance.