Your Oldsmobile fuel pump's job is to maintain the proper volume and pressure levels necessary to push the fuel through the combustion system. When the fuel pump begins to sputter, you will sense hesitation and bucking, or the car might even die entirely. When you start the car up in the mornings, your Oldsmobile will take forever to crank and turn over... and then will promptly die. Sometimes the pump might suffer from an electrical issue; most pumps are fueled by an electrical motor in the newer vehicles. The failure can come from a blown out fuel pump motor, or loose or broken connectors. To diagnose an electrical issue, test the voltage at the Oldsmobile fuel pump's positive terminal or wire. Look at the connectors for signs of burning, corrosion or loose wiring. Use a digital volt-ohmmeter to measure the drop in voltage between the negative wire and the pump connection at the tank. To diagnose whether the fuel pump is ailing because of blockage or pressure issue, purchase a fuel pressure gauge and check the pressure levels at different segments of the fuel system. When you pinpoint that your fuel pump is, indeed, failing, then replace the entire pump set. Order a new Oldsmobile fuel pump from our site and save yourself major repair bills by installing it yourself.