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Home >> Chevrolet >> 2011 >> Caprice >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 6.0L - Repair Instructions >> Repair Instructions >> Primary Fuel Tank Module Replacement >> Removal Procedure
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Removal Procedure

  1. Ignition OFF.
  2. WARNING:

    Refer to Battery Disconnect Warning .

  3. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection (Primary) , Battery Negative Cable Disconnection and Connection (Auxiliary) .
  4. WARNING:

    To avoid any vehicle damage, serious personal injury or death when major components are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed and strap the vehicle to the hoist.

    WARNING:

    Refer to Safety Glasses Warning .

    WARNING:

    Refer to Relieving Fuel Pressure Warning .

  5. Relieve the low side fuel pressure. Refer to Fuel Pressure Relief .
  6. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  7. Remove the fuel tank assembly. Refer to Fuel Tank Replacement .
  8. Fig 1: Primary Fuel Tank Module
    GM2169264Courtesy of GENERAL MOTORS CORP.
    NOTE:

    Press the locking tang (4) to release the electrical harness connector (1) from the primary fuel tank module (2).

  9. Disconnect the electrical harness connector (1) from the primary fuel tank module (2).
  10. Detach the fuel feed pipe (3) from the primary fuel tank module (2). Refer to Plastic Collar Quick Connect Fitting Service .
  11. Fig 2: Locating Cam Lock Ring
    GM2008609Courtesy of GENERAL MOTORS CORP.
    NOTE:

    The cam lock ring (2) is a single use item and must be discarded after removal.

  12. Remove the cam lock ring (2) from the fuel tank assembly (3) by rotating the cam lock ring (2) counterclockwise using the fuel tank sender wrench J-45722  fuel tank sender wrench (1).
  13. Discard the cam lock ring (2)
  14. Fig 3: Primary Fuel Tank Module
    GM2169266Courtesy of GENERAL MOTORS CORP.
    NOTE:
    • To release the transfer tube connector (4) from the primary fuel tank module (1), squeeze the releasing buttons on the transfer tube connector (4).
    • Note the orientation of the primary fuel tank module (1) in relation to the fuel tank assembly (2).
  15. Carefully lift the primary fuel tank module (1) from the fuel tank assembly (2), allowing enough clearance to disconnect the transfer tube connector (4) from the primary fuel tank module (1).
  16. Disconnect the transfer tube connector (4) from the primary fuel tank module (1).
  17. NOTE:

    Care should be taken not to damage the fuel level sensor float rod (3) when removing the primary fuel tank module (1) from the fuel tank assembly (2).

  18. Carefully manoeuvre the primary fuel tank module (1) from the fuel tank assembly (2).
  19. Fig 4: Primary Fuel Tank Module Seal Ring
    GM2169267Courtesy of GENERAL MOTORS CORP.
    NOTE:

    The primary fuel tank module seal ring (1) is a single use item and must be discarded after removal.

  20. Remove the primary fuel tank module seal ring (1) from the fuel tank assembly (2).
  21. Discard the primary fuel tank module seal ring (1).