Nissan Altima Fuel Pump And Fuel Pressure Regulator Removal Procedure
Start by locating the fuel pump cover under the rear seat. Remove the fuel pump cover by removing the four screws that hold it in place. You then need to remove the locking ring. It should twist right off. Disconnect the electrical connectors of the fuel pump. Disengage the fuel lines from the car’s fuel pump assembly as well.Remove the entire assembly and replace with a new one the same way the old one was removed.The fuel pump removal and installation procedure:---
See Figures 1, 2, 3, 4 and 5
Fig. Fig. 1: The fuel pump access cover is located under the rear seat. It is secured by four screws (arrows)
Fig. Fig. 2: Fuel pump components include the locking ring (1), fuel pump assembly (2), electrical harness (1), low pressure fuel return line (2), and high pressure fuel feed line (3)
Fig. Fig. 3: The locking ring should twist off easily. If it is difficult to remove, it can be tapped around gently with a small hammer and drift
Fig. Fig. 4: The fuel pump assembly can then be lifted from the fuel tank
