FixVault
Home › Cadillac › 2010 › STS 4.6 A, RWD › Repair and Diagnosis › Engine Performance › Engine Control Systems › Engine Controls And Fuel - 4.6L (LH2) - Repair Instructions › Repair Instructions › Fuel Line Replacement - Chassis › Installation Procedure

Installation Procedure

  1. Clean any of the contamination from the male line ends and apply a few drops of clean engine oil.
  2. With the aid of an assistant, carefully guide the chassis fuel hose/pipes up through the engine compartment into position.
  3. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
    4. Fig 1: Pulling Right Side Transmission Support Down
    GM818898Courtesy of GENERAL MOTORS CORP.
  4. Pull the right side transmission support down only enough to allow installation of the chassis fuel hose/pipes.
    5. Fig 2: Transmission Support Bolts
    GM818897Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Fastener Caution .
  5. Install the bolts securing the transmission support to the underbody and tighten to 60 N.m (44 lb ft).
    6. Fig 3: Chassis Hose/Pipe Retainers
    GM785812Courtesy of GENERAL MOTORS CORP.
  6. Install the bolt securing the fuel filter bracket to the body and tighten to 9 N.m (80 lb in).
  7. Push upward in order to connect the fuel/brake bundle chassis pipe retainer to the underbody.
  8. Complete the following in order to install the chassis hose/pipes to the retainers (2) located at the rearward portion of the rail:
    1. Install the chassis hose/pipes into the retainers (2).
    2. Close the retainers (2) at the top.
    3. Insert the retainers (2) into the rail.
  9. Install the chassis hose/pipes into the retainers (1) located at the forward portion of the rail.
  10. Close the retainers.
    11. Fig 4: Fuel/Brake Bundle Chassis Pipe Retainers Locking Mechanisms
    GM818896Courtesy of GENERAL MOTORS CORP.
  11. Push the locking mechanism (1) inward in order to engage the fuel/brake bundle chassis pipe retainers to the rail.
    12. Fig 5: Fuel Filter & Fittings
    GM1272549Courtesy of GENERAL MOTORS CORP.
  12. Refer to Plastic Collar Quick Connect Fitting Service  and Metal Collar Quick Connect Fitting Service  in order to connect the following quick connect fittings to the chassis bundle:
    • The fuel filter (2)
    • The fuel hose
    • The fuel EVAP hose
  13. Lower the vehicle.
    14. Fig 6: Hose Retainers
    GM1235105Courtesy of GENERAL MOTORS CORP.
  14. Insert the chassis hose/pipes into the retainers (1 and 2) located at the rear of the engine and the front of dash.
  15. Close the retainers.
    16. Fig 7: EVAP Quick Connect Fitting & Electrical Connector
    GM1239219Courtesy of GENERAL MOTORS CORP.
  16. Connect the EVAP quick connect fitting (2). Refer to Plastic Collar Quick Connect Fitting Service .
    17. Fig 8: Fuel Line-To-Fuel Rail Connection
    GM1234881Courtesy of GENERAL MOTORS CORP.
  17. Connect the fuel feed pipe (1) to the fuel rail. Refer to Metal Collar Quick Connect Fitting Service .
  18. Check the fuel system for leaks.
  19. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .
About FixVault