subject: Used Fuel Pump for your Jeep and Subaru [print this page] So, in order to maintain smooth functioning of the vehicle, working of fuel pump must be at the highest performance level consistently. Part of the effort should be directed to ensure that auto warranty and insurance papers and formalities are updated, if the need arises to stake claim for any compensation. It is the responsibility of the vehicle owner to prevent fuel pump problems and if symptoms of a bad fuel pump do show up, they must be attended to on top priority.