FixVault
Home › Pontiac › 2002 › Aztek AWD › Repair and Diagnosis › External Pages › Different car › Section 1617 (Engine Controls And Fuel - 3.5L - Introduction) › Repair Instructions › Fuel Injection Fuel Rail Assembly Replacement › Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
WARNING: In order to reduce the risk of fire and personal injury that may result from a fuel leak, always install the fuel injector O-rings in the proper position. If the upper and lower O-rings are different colors (black and brown), be sure to install the black O-ring in the upper position and the brown O-ring in the lower position on the fuel injector. The O-rings are the same size but are made of different materials.
CAUTION: Cap the fittings and plug the holes when servicing the fuel system in order to prevent dirt and other contaminants from entering the open pipes and passages.

An 8-digit identification number is stamped on the fuel rail. Refer to this number if servicing or part replacement is required.

    Fig 1: Chassis Fuel Feed Line Quick Connect Fitting
    GM1885563Courtesy of GENERAL MOTORS CORP.
  1. Disconnect the chassis fuel feed line quick connect fitting (2) from the fuel rail. Refer to Metal Collar Quick Connect Fitting Service .
  2. Remove the upper intake manifold. Refer to Upper Intake Manifold Replacement .
    3. Fig 2: View Of Upper Intake Manifold
    GM1775159Courtesy of GENERAL MOTORS CORP.
  3. Disconnect the fuel injector wiring harness electrical connector from the engine coolant temperature (ECT) sensor.
    4. Fig 3: View Of Fuel Injector Wiring Harness Electrical Connector
    GM1775160Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the fuel injector wiring harness electrical connector from the camshaft position (CMP) sensor.
    5. Fig 4: Identifying Fuel Injector Wiring Harness Connector Bracket Bolt
    GM1775161Courtesy of GENERAL MOTORS CORP.
  5. Remove the fuel injector wiring harness electrical connector bracket bolt from the intake manifold.
    6. Fig 5: Identifying Fuel Rail
    GM1557674Courtesy of GENERAL MOTORS CORP.
  6. Remove the fuel rail bolts.
  7. Remove the fuel rail (1).
  8. Remove the fuel injector O-ring seal from the spray tip end of each injector, if the fuel rail was removed for other purposes.
  9. If replacing the fuel rail proceed to the disassembly procedure, otherwise proceed to the Installation Procedure.
About FixVault