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Home >> Chevrolet >> 2017 >> Caprice 3.6L Eng VIN 3 >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 3.6L (LFX) - Repair Instructions >> Repair Instructions >> Fuel Tank Replacement >> Installation Procedure

Installation Procedure

    Fig 1: Identifying Fuel Tank Strap To Chassis Retaining Bolts
    GM1949817Courtesy of GENERAL MOTORS COMPANY
  1. If the fuel tank was replaced, install the following components.
    2. NOTE:
    • Do not to damage the following components when installing the fuel tank assembly:
      • The fuel tank assembly wiring harness.
      • The fuel tank assembly electrical harness.
      • The fuel tank EVAP pipes.
    • Support the fuel tank assembly while installing the fuel tank assembly retaining straps to chassis retaining bolts (1).
  2. With the aid of an assistant install the fuel tank assembly to the vehicle.
  3. Install the fuel tank assembly retaining straps.
    4. CAUTION:

    Refer to Fastener Caution .

  4. Install the fuel tank assembly strap to chassis retaining bolts (1) and tighten to 30 N.m (22 lb ft).
    5. Fig 2: Identifying Evaporative Emission Line & Canister
    GM2008604Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Listen for an audible click to confirm correct installation of the EVAP emission hoses.

  5. Connect the EVAP emission hoses to the EVAP emission canister (3). Refer to Plastic Collar Quick Connect Fitting Service .
    6. Fig 3: Supporting Rear Frame Assembly
    GM2172065Courtesy of GENERAL MOTORS COMPANY
  6. Raise and support the rear frame assembly (1) into its position using a suitable tool (2).
    7. Fig 4: Rear Frame Bolts
    GM2178933Courtesy of GENERAL MOTORS COMPANY
  7. Remove the EN-48536  tool (2) from the rear frame mounts (1).
    8. Fig 5: Identifying Rear Frame To Chassis Retaining Bolts
    GM1949819Courtesy of GENERAL MOTORS COMPANY
  8. Using a suitable tool clean the threaded holes (1 and 2) in the rear frame.
  9. Install NEW rear frame to chassis retaining bolts (2).

    Do not fully tighten at this stage.

  10. Install NEW rear frame to chassis retaining bolts (1).

    Do not fully tighten at this stage.

  11. Tighten the NEW rear frame to chassis retaining bolts (1) and (2).
    1. First Pass: Tighten the bolts to 65 N.m (48 lb ft).
    2. Final Pass: Tighten the bolts a further 125 degrees.
    12. Fig 6: Fuel Tank Electrical Connector
    GM2084586Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Listen for an audible click to confirm correct installation of the fuel tank electrical connector.

  12. Connect the fuel tank assembly electrical connector (1) to the chassis electrical harness.
    13. Fig 7: Identifying Fuel Feed Line & Fuel EVAP Hose
    GM1949815Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Listen for an audible click to confirm correct installation of the EVAP pipe (2) and the fuel feed pipe (1).

  13. Connect the EVAP pipe (2) to the EVAP chassis pipe.
  14. Connect the fuel feed pipe (1) to the chassis fuel feed pipe.
    15. Fig 8: Identifying Worm Drive Hose Clamp & Filler Tube
    GM1949831Courtesy of GENERAL MOTORS COMPANY
  15. Install the filler tube (2) to the fuel tank assembly.
  16. Install the filler tube clamp (1) to the fuel tank assembly. Tighten the filler tube hose clamp (1) to 3.5 N.m (31 lb in)
    17. Fig 9: Identifying Evaporative Emission (EVAP) Line
    GM1949829Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Listen for an audible click to confirm correct installation of the EVAP hose (1).

  17. Install the EVAP hose (1) to the fuel tank assembly.
  18. Connect the fuel feed line pressure sensor. Refer to Fuel Pressure Sensor Replacement - Fuel Feed Pipe .
  19. Install the fuel tank heat shield. Refer to Fuel Tank Heat Shield Replacement .
  20. Install the propeller shaft. Refer to Propeller Shaft Replacement .
  21. Install the exhaust crossover pipe. Refer to Exhaust Crossover Pipe Replacement .
  22. Install the right rear wheel. Refer to Tire and Wheel Removal and Installation .
  23. Lower the vehicle.
  24. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection (Primary Battery)Battery Negative Cable Disconnection and Connection (Auxiliary Battery) .
  25. Inspect for fuel leaks using the following procedure:
    1. Turn ON the ignition, with the engine OFF for 2 seconds.
    2. Turn OFF the ignition, for 10 seconds.
    3. Turn ON the ignition, with the engine OFF.
    4. Inspect for leaks.
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