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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 128 (Engine Controls And Fuel - 3.6L (LF4) - Repair Instructions (1 Of 3)) >> Repair Instructions >> Fuel Tank Replacement (MG9) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
  1. Relieve the fuel system pressure. Fuel Pressure Relief 
  2. Drain the fuel tank. Fuel Tank Draining 
  3. Raise and support the vehicle. Lifting and Jacking the Vehicle
  4. GM5395705Courtesy of GENERAL MOTORS COMPANY

    Rear Tire Front Air Deflector Bolt- Left Side and Right Side (1) - Remove [4x]

  5. Rear Tire Front Air Deflector- Left Side and Right Side (2) - Remove [2x]
  6. GM5400553Courtesy of GENERAL MOTORS COMPANY

    Rear Wheelhouse Liner Bolt- Left Side (1) - Remove

  7. Underbody Rear Air Deflector Nut- Left Side (2) - Remove [3x]
  8. Underbody Rear Air Deflector Bolt- Left Side (3) - Remove [3x]
  9. Underbody Rear Air Deflector Nut- Left Side (4) - Remove [2x]
  10. Underbody Rear Air Deflector- Left Side (5) - Remove
  11. GM5400642Courtesy of GENERAL MOTORS COMPANY

    Rear Wheelhouse Liner Bolt- Right Side (1) - Remove

  12. Underbody Rear Air Deflector Bolt- Right Side (2) - Remove [3x]
  13. Underbody Rear Air Deflector Nut- Right Side (3) - Remove [3x]
  14. Underbody Rear Air Deflector Nut- Right Side (4) - Remove [2x]
  15. Underbody Rear Air Deflector- Right Side (5) - Remove
  16. GM5839256Courtesy of GENERAL MOTORS COMPANY

    Underbody Front Air Deflector Bolt- Right Side (1) - Remove [6x]

  17. Underbody Rear Air Deflector Nut- Right Side (2) - Remove [5x]
  18. Transmission Fluid Cooler Pipe Bracket Bolt- Right Side (3) - Remove [2x]
  19. Underbody Rear Air Deflector- Right Side (5) - Remove
  20. GM5854893Courtesy of GENERAL MOTORS COMPANY

    Underbody Front Air Deflector Bolt- Left Side (1) - Remove [6x]

  21. Underbody Rear Air Deflector Nut- Left Side (2) - Remove [5x]
  22. Transmission Fluid Cooler Pipe Bracket Bolt- Left Side (3) - Remove [2x]
  23. Underbody Rear Air Deflector- Left Side (5) - Remove
  24. GM5400756Courtesy of GENERAL MOTORS COMPANY

    Floor Panel Number 4 Cross Bar Reinforcement Bolt (1) - Remove [6x]

  25. Floor Panel Reinforcement (2) - Remove
  26. GM5865265Courtesy of GENERAL MOTORS COMPANY

    Catalytic Converter Nut (1) - Remove [2x]

  27. GM5865271Courtesy of GENERAL MOTORS COMPANY

    Exhaust Pipe Clamp (1) - Loosen [2x]

  28. GM5406578Courtesy of GENERAL MOTORS COMPANY

    Exhaust Muffler (1) @ Exhaust Intermediate Pipe Insulator-Left Side (2) - Separate [2x]

  29. GM5406632Courtesy of GENERAL MOTORS COMPANY

    Exhaust Muffler (1) @ Exhaust Intermediate Pipe Insulator-Right Side (2) - Separate [2x]

  30. GM5865287Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (1) - Disconnect

  31. GM5865293Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (1) - Disconnect

  32. GM5865300Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The rear bumper fascia is removed for illustration purposes only.

    Exhaust Muffler Hanger Bracket Nut (1) - Remove [4x]

  33. GM5865329Courtesy of GENERAL MOTORS COMPANY

    With the aid of an assistant, remove the exhaust muffler (1).

  34. Catalytic Converter Gasket (2) - Remove and DISCARD
  35. GM5865888Courtesy of GENERAL MOTORS COMPANY

    Exhaust Heat Shield Bolt (1) - Remove [2x]

  36. Exhaust Intermediate Underbody Heat Shield (2) - Remove
  37. GM5334717Courtesy of GENERAL MOTORS COMPANY

    Floor Panel Number 2 Cross Bar Reinforcement Bolt (1) - Remove [4x]

  38. Floor Panel Number 2 Cross Bar Reinforcement (2) - Remove
  39. GM5867501Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Before removing the propeller shaft from the vehicle, paint or scribe references marks on the transmission flange to the propeller shaft and the rear differential drive flange to ensure minimal driveline system imbalance.

    Mark (2) the relationship of the propeller shaft flange (3) and the output flange (1) of the transmission.

  40. GM5863695Courtesy of GENERAL MOTORS COMPANY

    Mark (3) the relationship of the propeller shaft flange (1) and the rear axle pinion flange (2).

  41. GM5867502Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Ensure that the propeller shaft is secured to the jack stand.

    Support the propeller shaft with a suitable jack stand.

  42. Remove the 3 front propeller shaft bolts (2) and the 3 front propeller shaft nuts (1).
  43. GM5863697Courtesy of GENERAL MOTORS COMPANY

    Remove the 3 rear propeller shaft bolts (1) and the 3 rear propeller shaft nuts (2).

  44. GM5863691Courtesy of GENERAL MOTORS COMPANY

    Remove the 2 propeller shaft bearing support bolts (1).

  45. GM5863853Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Care should be taken not to use sharp or pry tools when separating the propeller shaft coupler from the drive flange. Damage to the coupler could result and replacement of the entire propeller shaft would be required.

    NOTE:

    It may be necessary to apply a small amount of penetrating lubricant or WD-40® to the area shown (1) to aid in separation of the propeller shaft coupling.

    If the propeller shaft does not easily separate from the differential, transmission or transfer case, use a rubber mallet to gently tap the locations (1) on the rubber coupling shown above to separate.

  46. GM5867503Courtesy of GENERAL MOTORS COMPANY

    Remove the propeller shaft (1) from the vehicle.

  47. GM5862587Courtesy of GENERAL MOTORS COMPANY

    Retaining Clip (3) - Disengage [2x]

  48. Transmission Fluid Cooler Inlet and Outlet Pipe (2) @ Transmission Fluid Auxiliary Cooler Inlet Pipe (1) - Disconnect
  49. Transmission Fluid Cooler Inlet and Outlet Pipe (4) @ Transmission Fluid Auxiliary Cooler Outlet Pipe (5) - Disconnect
  50. GM5865268Courtesy of GENERAL MOTORS COMPANY

    Transmission Fluid Cooler Pipe Clip (1) - Disengage [2x]

  51. Retaining Clip (3) - Disengage
  52. Transmission Fluid Auxiliary Cooler Inlet Pipe (2) - Disconnect
  53. Transmission Fluid Auxiliary Cooler Inlet Pipe (2) - Remove
  54. GM5864749Courtesy of GENERAL MOTORS COMPANY

    Transmission Fluid Cooler Pipe Clip (1) - Disengage [2x]

  55. Retaining Clip (3) - Disengage
  56. Transmission Fluid Auxiliary Cooler Outlet Pipe (2) - Disconnect
  57. Transmission Fluid Auxiliary Cooler Outlet Pipe (2) - Remove
  58. GM5845775Courtesy of GENERAL MOTORS COMPANY

    Fuel Sender Wiring Harness (1) - Disconnect [2x]

  59. Retainer (2) - Disengage [5x]
  60. GM5845776Courtesy of GENERAL MOTORS COMPANY

    Fuel Tank Vent Valve Hose (1) - Disconnect - Plastic Collar Quick Connect Fitting Service 

  61. Fuel Pump Fuel Feed Hose (2) - Disconnect - Plastic Collar Quick Connect Fitting Service 
  62. GM5845777Courtesy of GENERAL MOTORS COMPANY

    Fuel Tank Filler Hose Clamp (1) - Loosen

  63. Fuel Tank Filler Hose - (2) Remove
  64. Evaporative Emission Canister Purge Hose (3) - Disconnect - Plastic Collar Quick Connect Fitting Service 
  65. Fuel Tank Filler Evaporative Emission Valve Hose (4) - Disconnect - Plastic Collar Quick Connect Fitting Service 
  66. Fuel Tank Vent Hose (5) - Disconnect - Plastic Collar Quick Connect Fitting Service 
  67. GM5845778Courtesy of GENERAL MOTORS COMPANY

    Place a suitable adjustable jack under the fuel tank.

  68. Fuel Tank Strap Bolt (1) - Remove [5x]
  69. Fuel Tank Strap (2) - Remove [2x]
  70. GM5845779Courtesy of GENERAL MOTORS COMPANY

    Fuel Tank (1) - Remove

  71. Remove the jack.
  72. GM5845774Courtesy of GENERAL MOTORS COMPANY

    Fuel Sender Wiring Harness (1) - Disconnect [3x]

  73. Fuel Sender Wiring Harness (1) @ Retainer (2) - Disengage
  74. Fuel Sender Wiring Harness (1) - Remove
  75. GM5845782Courtesy of GENERAL MOTORS COMPANY

    Fuel Pump Fuel Feed Hose (1) - Disconnect - Plastic Collar Quick Connect Fitting Service 

  76. Fuel Pump Fuel Feed Hose (1) @ Retainer (2) - Disengage [3x]
  77. Fuel Pump Fuel Feed Hose (1) - Remove
  78. GM5845783Courtesy of GENERAL MOTORS COMPANY

    Fuel Tank Vent Valve Hose (1) @ Retainer (2) - Disengage [3x]

  79. Fuel Tank Vent Valve Hose (1) - Remove
  80. GM5845784Courtesy of GENERAL MOTORS COMPANY

    Evaporative Emission Canister Hose (1) - Disconnect - Plastic Collar Quick Connect Fitting Service 

  81. Evaporative Emission Canister Hose (1) @ Retainer (2) - Disengage
  82. Evaporative Emission Canister Hose (1) - Remove
  83. GM5845785Courtesy of GENERAL MOTORS COMPANY

    Fuel Tank Filler Evaporative Emission Valve Hose (1) - Disconnect - Plastic Collar Quick Connect Fitting Service 

  84. Fuel Tank Filler Evaporative Emission Valve Hose (1) @ Retainer (2) - Disengage
  85. Fuel Tank Filler Evaporative Emission Valve Hose (1) - Remove
  86. GM5831532Courtesy of GENERAL MOTORS COMPANY

    Fuel Sender Retainer (1) - Remove - CH - 45722  Fuel Sender Lock Ring Wrench (2)

  87. GM5831534Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (1) - Disconnect

  88. Fuel Tank Vent Hose (2) - Disconnect - Plastic Collar Quick Connect Fitting Service 
  89. Fuel Sender (3) - Disconnect [2x] - Plastic Collar Quick Connect Fitting Service 
  90. Fuel Hose (4) - Disconnect - Plastic Collar Quick Connect Fitting Service 
  91. GM5831533Courtesy of GENERAL MOTORS COMPANY

    Fuel Tank Fuel Pump Module (1) - Remove

  92. Fuel Pump Seal (2) - Remove and DISCARD
  93. GM5845780Courtesy of GENERAL MOTORS COMPANY

    Fuel Tank Pressure Sensor Cover (1) - Remove

  94. Fuel Tank Pressure Sensor (2) - Remove
  95. GM5845781Courtesy of GENERAL MOTORS COMPANY

    Fuel Tank Shield Retainer (1) - Remove [5x]

  96. Fuel Tank Shield (2) - Remove