2000 Cadillac Escalade Fuel Line

You need to disconnect the negative battery cable, relieve the fuel system pressure and remove the air cleaner outlet duct. Loosen the fuel and EVAP pipe retainer nut at the bell housing stud, disconnect the chassis fuel feed and return pipes at the engine compartment fuel feed and return pipes and remove the injector fuel feed and return pipe retainer nuts, the injector fuel feed and return pipe retainer and the rear fuel pipe bracket retaining bolt. Then pull straight up on the fuel pipes, remove the O-ring seals from both ends of the fuel feed and return pipes and discard the O-ring seals.

You need to disconnect the negative battery cable, relieve the fuel system pressure and clean all the fuel pipe connections and the surrounding areas before disconnecting the pipes to avoid possible contamination of the fuel system. Disconnect the fuel feed and return pipes from the engine fuel pipes, remove the upper bell housing stud and the fuel pipe clip and raise the vehicle. Then disconnect the fuel pipes from the attaching hardware and the fuel feed and return pipe fittings at the fuel filter and the return pipe union and remove the fuel feed and return pipes.

You need to connect the fuel feed and return pipes to the engine fuel pipes and the fuel pipe attaching hardware, position the new fuel pipe harness in the original location and fuel pipe harness attaching hardware and remove protective caps from one end of both fuel pipes. Leave caps on the other end of the pipes to prevent dirt from entering. Apply a few drops of clean engine oil to the male connector tube ends, connect the fuel feed pipe to the fuel filter and the return pipe to the union, the quick-connect fittings at the fuel feed and return pipes, and the vapor pipes at the fuel sender assembly and the fuel pipe unions in front of the crossmember. Next, install the fuel tank and attaching hardware, if the tank was removed. Then tighten the fuel filler cap, connect the negative battery cable and inspect for fuel leaks.

You need to install the fuel feed and return pipes, lower the vehicle and connect the fuel feed and return pipes to the engine fuel pipes. Install the fuel pipe clip and the upper bell housing stud, raise the vehicle and install the fuel pipes into the fuel pipe attaching hardware. Connect the fuel feed and return pipes to the fuel filter and the return pipe union, lower the vehicle and tighten the fuel filter cap. Then connect the negative battery cable and inspect for fuel leaks.