“…The service life may be determined through the use of testing methods [2,3,4]. Technological failures of the EFP are divided into two types: mechanical and electrical [5,6]. The main signs of the impairment of the fuel pump performance are unstable engine operation, interrupted fuel supply, increased leaks in the injection unit of the EFP, slow acceleration of the vehicle due to a violated fuel supply, delayed acceleration of the ICE when the accelerator pedal is activated, uneven fuel supply on the move, as well as related pump failures -increased noise during the pump operation, pops in the dumper [7,8].…”