OEM Buick Park Avenue Fuel Rail

Buick Park Avenue Fuel Rail Parts and Q&A

• Fuel Rail
  17113198
  Q: How to service and repair the fuel rail on Buick Park Avenue?

  A:

  The service and repair process for the Fuel Rail starts by collecting the needed tools which include the fuel pressure gauge (J34730). Start by draining fuel pressure from the system then clean all pieces of the Fuel Rail assembly. The service begins by disconnecting fuel feed and return pipes from the Fuel Rail assembly and also removing the vacuum hose from both the pressure regulator and Throttle Body. Begin by disconnecting the ignition coil wires next to all Fuel Injectors as well as removing their electrical connectors. Afterward remove the Fuel Rail hold-down bolts. Wooden pliers should be used to gently uninstall the Fuel Rail assembly by pushing in both directions. Installation requires new o-rings for all components besides the Fuel Injector o-rings which need light motor oil application before inserting the Fuel Rail assembly onto the Intake Manifold with manual seating of fuel injectors. You should tighten the Fuel Rail hold-down bolts to reach 10 n.m torque (7 lb ft). You must reattach all Fuel Injector electrical connectors, fuel feed pipes, fuel return pipes and vacuum hoses to the pressure regulator and Throttle Body. The last steps include reconnecting the ignition coil wires while attaching the negative Battery Cable before putting back the Fuel Injector sight shield.
• Fuel Rail
  24508941
  Q: How to replace the fuel rail assembly on Buick Park Avenue?

  A:

  Before beginning replacement of the Fuel Rail assembly start by reducing pressure from the fuel system and cleaning both the Fuel Rail components and their connecting points. Separate all fuel feed along with return pipes from their connection points to Fuel Rail tubes followed by disconnecting the vacuum line from the Fuel Pressure Regulator. First remove ignition coil wires before using the lock release tool on Fuel Injector connectors to pull and depress the lock tab for disconnecting the connectors from the fuel injectors. Raise the fuel injectors using a Fuel Injector remover (J 43013) tool after removing the Fuel Rail hold-down bolts. The Fuel Rail should be taken out with uniform force that acts on both its sides. When installing the fuel injectors put the brown o-ring below the black o-ring into their correct positions. First install the new o-rings to every serviced component before lubricating them with motor oil and handing the Fuel Rail assembly into position on the Intake Manifold. The technicians should install Fuel Rail hold-down bolts before torquing them to 10 n.m (89 lb in). After connecting the Fuel Injector electrical connectors you should push down the lock release lever while it locks and proceed to connect the fuel feed along with the return pipes to the Fuel Rail tubes. After reconnecting the vacuum line to the Fuel Pressure Regulator the mechanic will install the ignition coil wires before tightening the fuel fill cap while reconnecting the negative Battery Cable. A final leak inspection should be conducted by following the specified ignition cycle then reinstalling the fuel injection sight shield.