OEM 2001 Cadillac Seville Fuel Rail

2001 Cadillac Seville Fuel Rail Parts Questions & Experts Answers

• Q: How to replace the fuel rail assembly on 2001 Cadillac Seville?

  A: The first step to change the Fuel Rail assembly includes pressure relief from the fuel system followed by gm x-30a engine cleaner application to the assembly. Service technicians must prevent long exposure to liquid solvent. Disconnect first all fuel pipes (2,3) and then proceed to remove the Fuel Pressure Regulator vacuum hose from the cam cover followed by the pcv air tube and the PCV Valve. The first step involves removing the Fuel Rail bracket retainer nut followed by disconnecting Fuel Injector electrical connectors from all fuel injectors before placing the harness to the side. Take out the engine wiring harness from its position on the Fuel Rail studs before extracting the Fuel Rail attaching studs together with the Fuel Rail. You need to remove the o-ring seals positioning at the injector spray tips before discarding them. When replacing the Fuel Rail alongside its accessory parts users should detach both the fuel injectors and the pressure regulator. You should apply clean engine oil to new o-ring seals installed at the lower part of each Fuel Injector before adding fuel injectors when replacing the Fuel Rail and adding new o-ring seals to the spray tip end of every injector. Fasten the Fuel Rail by tightening each Fuel Rail attaching stud to 10 n.m (89 lb in). After installing the PCV Valve between the cam cover and coolant surge tank inlet pipe and pcv air tube, attach Fuel Injector electrical connectors to each Fuel Injector before installing the Fuel Rail bracket retainer nut which requires 10 n.m (89 lb in) torque. The installation should be completed with attaching the Fuel Pressure Regulator vacuum hose and the fuel feed and return pipes (2, 3) to the Fuel Rail. Inspect for fuel leaks by turning the ignition on for 2 seconds, off for 10 seconds and then on again after reattaching the negative Battery Cable. The inspection should check for leaks during the entire Battery Cable and on/off sequence. You must install the Fuel Injector sight shield as the last step.