OEM 2003 Chevrolet Venture Fuel Rail

2003 Chevrolet Venture Parts Questions & Experts Answers

• Q: How to replace the fuel rail assembly on 2003 Chevrolet Venture?

  A: Focus on reading the eight-digit identification number that marks the left-hand Fuel Rail supplying fuel to even cylinders 2, 4 and 6 as your first step in Fuel Rail assembly replacement. Correct o-ring installation requires placement of the black one on top while the brown one should go below because both rings have different materials although they have matching dimensions. The holes in the fuel system need plugging along with fittings that seal off the passages during maintenance procedures. The first step requires draining fuel system pressure before disconnecting the upper Intake Manifold. Cut the pipeline that delivers engine fuel at the Fuel Rail before removing the pipeline that returns engine fuel to the Fuel Pressure Regulator and dispose of all present o-rings in both lines. After pulling up the lock release and pressing the lock tab down disconnect both the Fuel Injector harness electrical connector and the individual connectors that secure the fuel injectors to their places. Detach the injector electrical harness from the Fuel Rail before disconnection of the coolant temperature sensor electrical connector. Proceed to uninstall the Fuel Rail retaining bolts while simultaneously removing the Fuel Rail assembly before extracting the o-ring seal from each injector at their spray tip end. Install the new Fuel Rail assembly by first tilting it before inserting the injectors before securing the attaching bolts and tightening them to 10 n.m (89 lb in). Connect the coolant temperature sensor electrical connector while safely installing the Fuel Rail injector electrical harness followed by relevant connector plug-ins that lock securely. The main injector harness electrical connector needs to be reconnected after installing new o-rings onto both the fuel feed pipe and fuel return pipe. The fuel feed pipe should be connected at the Fuel Rail where the nut needs to be tightened to 17 n.m (13 lb ft). The fuel return pipe needs to be connected to the Fuel Pressure Regulator while torquing the nut to 17 n.m (13 lb ft). The procedure concludes with reconnecting the negative Battery Cable. The inspection process includes testing fuel leaks by flipping the ignition twice for two seconds followed by ten seconds off before turning it back on prior to reinstalling the upper Intake Manifold.