OEM Cadillac SRX Fuel Rail

Cadillac SRX Fuel Rail Parts and Q&A

• Fuel Rail
  12572886
  Q: How to service and repair the fuel rail and fuel injectors on Cadillac SRX?

  A:

  A professional should start service and repair work on the Fuel Rail and Fuel Injectors by depressurizing the fuel system either with ch-48027 or without it when needed. The first service step requires removal of both the upper and lower Intake Manifolds. Separate the attaching clip for the fuel pipe while disconnecting the fuel feed pipe from its connection to the Fuel Injector rail. Destroy any debris inside the area through which fuel injectors enter the Intake Manifold by utilizing compressed air. Prior to removing Fuel Rail bolts the technician should protect the injector electrical connector terminals and spray tips then support the Fuel Rail throughout extraction. Apply caps on the fittings and use plugs to protect against contamination. First detach the Fuel Rail with all fuel injectors attached and eliminate its link to the Fuel Injector electrical connector mechanism through unlocking the connection and unplugging the wires. Use a new tool to remove both the Fuel Injector retainer clip as well as the Fuel Injector while discarding any old Fuel Injector seals. Install new Fuel Injector seals first then position the Fuel Injector together with its retainer clip. Connect the electrical connector of the Fuel Injector before making sure the lock moves into its placed position. The Fuel Rail installation requires attachment with fuel injectors plus bolt tightening to 10 nm (89 lb in). The fuel feed pipe should be installed to the Fuel Rail before securing it with the retaining clip. Reinstall the upper Intake Manifold as the last installation step.
• Fuel Rail
  12598329
  Q: How to replace the fuel injector and fuel rail on Cadillac SRX?

  A:

  The first step involves decompressing the fuel system pressure either with ch 48027 or without it then the cross vehicle brace needs removal. Spray cleaning solution gm x-30a or its equivalent allows cleaning of the fuel rail assembly but avoid excessive soaking. You must remove the fuel feed hose/pipe from the fuel rail and after that remove the positive crankcase ventilation (PCV) dirty air hose and finally disconnect the evaporative emission (EVAP) quick connect fitting . Under the right side rear of the engine section and the front of the dash, use retainers (1 and 2) to access the lines for positioning them out of the way. You must first disconnect the left and right fuel injector wiring harness connectors at the fuel injectors then remove the sight shield bracket and its attaching studs to handle the fuel rail assembly. Remove lower o-ring seals from each injector and discard them before taking out the retainers and fuel injectors from the fuel rail assembly by throwing out the o-ring seals. When installing fuel injectors users must apply engine oil to new o-ring seals before they attach them to the fuel injectors using new retainer clips which need to be mounted to the fuel rail with electrical connectors maintained at a 90-degree angle to the crankshaft centerline. Secure the new o-ring seals on each injector spray tip end with lubricating them with engine oil. Next install the fuel injectors and fuel rail to the Intake Manifold before seating the assembly by pressing it down. Start by installing both fuel rail attaching studs, which require 10 n.m torque setting. After that, secure the sight shield bracket nuts at 10 n.m also. The fuel injector electrical connectors should be joined to their respective fuel injector before installing fuel feed and evap lines through retaining clips (1 and 2). The purge valve will receive the evap quick connect fitting while the pcv dirty air hose returns to its original position. The fuel rail receives the fuel feed hose/pipe installation after fitting the cross vehicle brace and positive Battery Cable reinstallation. The final check benefits from turning on the ignition key for 2 seconds followed by 10 seconds of off time before another 2-second key turn while the engine remains off for leak detection before shield installation is performed.