OEM Chevrolet K3500 Fuel Rail

Chevrolet K3500 Fuel Rail Parts Questions & Experts Answers

• Fuel Rail
  17120039
  Q: What tools are required to service and repair the fuel rail on Chevrolet K3500?

  A: Service and repair of the Fuel Rail requires the fuel pressure gauge tool with its part number j 34730-1a. Start the process by unhooking the negative Battery Cable before you eliminate pressure from the fuel system. The upper Intake Manifold needs removal before cleaning the Fuel Rail assembly with gm x-30a or equivalent engine cleaner according to the package instructions while avoiding prolonged Fuel Rail immersion in liquid solvent. Users must first detach fuel pipes from their rail position while removing the engine fuel pipe bracket bolt before disconnecting electrical injectors with pliers and taking out Fuel Rail keeping bolts. The second step involves removing the Fuel Rail from the Intake Manifold after you disconnect the vacuum hose line which leads to the pressure regulator. Follow the specified package methods using x-30a product to clean the fuel feed and return pipe o-rings before removing the injector o-ring seals from the spray tip end of each injector. Keep the o-ring back ups for future use. Before mounting new o-rings on each injector you need to put the o-ring back ups onto injectors and then apply engine oil to the o-rings but place them on the spray tips. After tilting the Fuel Rail assembly inside the Intake Manifold, install each injector and secure Fuel Rail attaching bolts with torque to 10 n.m (89 lb in). As a part of installation you should first attach injector electrical connectors before you put on new o-rings to the fuel pipes and then connect feed and return pipes by using a back up wrench to prevent turning motion and tightening the fittings to 27 n.m. The service technician should reengage the negative Battery Cable after reinstalling the fuel filler cap and delay a leak check with an on-off-on ignition switch procedure before checking for fuel leakage. To finish the installation process install the upper Intake Manifold as the last step.