OEM 2008 Cadillac CTS Fuel Rail

2008 Cadillac CTS Fuel Rail Parts Questions & Experts Answers

• Q: How to replace the Fuel Injection Fuel Rail Assembly for Bank 1 (LLT) with Direct Fuel Injection on 2008 Cadillac CTS?

  A: The procedure for fuel injection Fuel Rail assembly bank 1 (LLT) replacement on direct fuel injection vehicles begins by using the correct method to reduce fuel system pressure on your specific configuration. The procedure requires removal of three elements: cross vehicle brace and fuel pipe shield then Intake Manifold. First remove Fuel Rail foam insulation before disconnecting the Fuel Injector wiring connector from the injectors Fuel Rail and pressure sensor. Take out the high-pressure fuel sensor and the high-pressure fuel pipe along with disposing the latter. The technician should remove the Fuel Rail crossover pipe before discarding it. Extract the Fuel Rail bolts before you gradually lift the bank one Fuel Rail from the engine while paying attention to handle the rear sector first. The direct Fuel Injector hold down clamps need disposal because injectors require rebuilding whenever they leave their positions in the Fuel Rail or Cylinder Head. All workers must rebuild the fuel injectors before moving on to the next step. New hold down clamps should be used to secure rebuilt direct fuel injectors within the cylinder heads for installation. Newly installed fuel rails require lubrication of their injector cups with gm p/n 12345610 or equivalent silicon-free engine oil before installation by starting with the front nozzle over the front injector while rotating the rear injector down. Begin with the installation of outer Fuel Rail bolts followed by the insertion of inner bolts before performing hand-tightening. Initial tightening of bank 1 Fuel Rail bolts must be at 12 n.m (106 lb in) but final tightening needs to reach 23 n.m (17 lb ft). The replacement process requires a new Fuel Rail crossover pipe and high-pressure fuel pipe and the high-pressure fuel sensor needs to be installed. Verify that the Fuel Injector wiring connector is reconnected while utilizing a particular ignition turn order to inspect for fuel leakage. After placing back all parts start with the foam insulator then the Intake Manifold before installing the fuel pipe shield and low side fuel pressure service port cap along with the fuel tank cap and cross vehicle brace.