I have a 1991 Pontiac Transport Van, is the fuel pump in the gas tank?
Your fuel pump is located in the gas tank. The gas tank will need to be removed to replace the fuel pump. Most all vehicles from 1990 on and some earlier models have the fuel pump in the tank. This is how most all fuel injected vehicles are now.It is also a good idea to replace the fuel filter at the same time to help keep out any contaminants that might get in the line, this will help keep the fuel injectors from getting clogged that would turn into a poor running engine and poor fuel mileage.