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Home › Cadillac › 2021 › CT4 V, 4WD › Repair and Diagnosis › Engine Performance › System › Engine Controls And Fuel - 2.7L (L3B) - Repair Instructions › Repair Instructions › Fuel Tank Shield Replacement › Installation Procedure

Installation Procedure

GM5312860Courtesy of GENERAL MOTORS COMPANY
  1. Fuel Tank Shield (2) - Install
    2. CAUTION:

    Refer to Fastener Caution .

  2. Fuel Tank Shield Retainer (1) - Install [5x]
  3. GM5334765Courtesy of GENERAL MOTORS COMPANY

    Apply a thin layer of grease to the transmission output shaft splines (1). Adhesives, Fluids, Lubricants, and Sealers

  4. Loosely install a NEW propeller shaft hub clamp (3) to the propeller shaft joint boot.
  5. Support and secure the propeller shaft (2) to a suitable hydraulic jack stand.
  6. Propeller Shaft (2) - Install
  7. GM5317838Courtesy of GENERAL MOTORS COMPANY

    Prepare the 2 propeller shaft bearing support bolts (1) for installation as follows:

    1. Remove any loose cured adhesive from the external threads of the components using a lint free cloth.
    2. Thread the cleaned components into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Apply thread locking adhesive to the external threads of the components. Adhesives, Fluids, Lubricants, and Sealers
    4. Ensure there are no gaps in the thread locking adhesive once applied to the component.
  8. Propeller Shaft Bearing Support Bolt (1) - Install and tighten [2x] - Fastener Specifications
  9. Remove the hydraulic jack stand supporting the propeller shaft.
  10. GM5317835Courtesy of GENERAL MOTORS COMPANY

    Prepare the 3 rear propeller shaft bolts (1) and nuts (3) for installation as follows:

    1. Remove any loose cured adhesive from the external threads of the components using a lint free cloth.
    2. Thread the cleaned components into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Apply thread locking adhesive to the external threads of the components. Adhesives, Fluids, Lubricants, and Sealers
    4. Ensure there are no gaps in the thread locking adhesive once applied to the component.
  11. Align the relationship marks (2) made on the propeller shaft and the rear differential flange.
  12. Rear Propeller Shaft Bolt (1) - Install [3x]
  13. Rear Propeller Shaft Nut (3) - Loosely install [3x]
  14. Rear Propeller Shaft Bolt (1) - Tighten [3x] - Fastener Specifications
  15. GM5317844Courtesy of GENERAL MOTORS COMPANY
  16. Ensure that the drive shaft boot is completely seated in the output shaft groove prior to crimping the propeller shaft hub clamp (2).
  17. Using the DT-35910  Drive Axle Seal Clamp Pliers (1), crimp the propeller shaft hub clamp (2) until the final crimped outer diameter (a) is 39 - 41 mm (1.54 - 1.61 in).
  18. GM5334717Courtesy of GENERAL MOTORS COMPANY

    Floor Panel Number 2 Cross Bar Reinforcement (2) - Install

  19. Floor Panel Number 2 Cross Bar Reinforcement Bolt (1) - Install and tighten [4x] - Fastener Specifications
  20. GM5309833Courtesy of GENERAL MOTORS COMPANY

    Exhaust Intermediate Underbody Heat Shield (2) - Install

  21. Exhaust Heat Shield Bolt (1) - Install and tighten [6x] - Fastener Specifications
  22. GM5309214Courtesy of GENERAL MOTORS COMPANY

    Catalytic Converter Gasket (2) - Install NEW

  23. With the aid of an assistant, install the exhaust system to the vehicle (1)
  24. {If equipped} Electrical Connector @ Exhaust Control Valve Actuator - Connect
  25. GM5309211Courtesy of GENERAL MOTORS COMPANY

    Exhaust Muffler (1) @ Exhaust Rear Muffler Insulator-Right Side (3) - Install

  26. Exhaust Muffler (1) @ Exhaust Intermediate Pipe Insulator-Right Side (2) - Install
  27. GM5309202Courtesy of GENERAL MOTORS COMPANY

    Exhaust Muffler (1) @ Exhaust Rear Muffler Insulator-Left Side (3) - Install

  28. Exhaust Muffler (1) @ Exhaust Intermediate Pipe Insulator-Left Side (2) - Install
  29. GM5309188Courtesy of GENERAL MOTORS COMPANY

    Catalytic Converter Nut (1) - Install and tighten [2x] - Fastener Specifications

  30. GM5400756Courtesy of GENERAL MOTORS COMPANY

    Floor Panel Number 4 Cross Bar Reinforcement (2) - Install

  31. Floor Panel Number 4 Cross Bar Reinforcement Bolt (1) - Install and tighten [6x] - Fastener Specifications
  32. GM5400642Courtesy of GENERAL MOTORS COMPANY

    Underbody Rear Air Deflector- Right Side (5) - Install

  33. Underbody Rear Air Deflector Plastic Nut (3) - Install and tighten [3x] - Fastener Specifications
  34. Underbody Rear Air Deflector Bolt (2) - Install and tighten [3x] - Fastener Specifications
  35. Underbody Rear Air Deflector Nut (4) - Install and tighten [2x] - Fastener Specifications
  36. Rear Wheelhouse Liner Screw (1) - Install and tighten - Fastener Specifications
  37. GM5424018Courtesy of GENERAL MOTORS COMPANY

    Rear Tire Front Air Deflector- Right Side (2) - Install

  38. Rear Tire Front Air Deflector Bolt (1) - Install and tighten [2x] - Fastener Specifications
  39. GM5400553Courtesy of GENERAL MOTORS COMPANY

    Underbody Rear Air Deflector- Left Side (5) - Install

  40. Underbody Rear Air Deflector Plastic Nut (2) - Install and tighten [3x] - Fastener Specifications
  41. Underbody Rear Air Deflector Bolt (3) - Install and tighten [3x] - Fastener Specifications
  42. Underbody Rear Air Deflector Nut (4) - Install and tighten [2x] - Fastener Specifications
  43. Rear Wheelhouse Liner Screw (1) - Install and tighten - Fastener Specifications
  44. GM5424015Courtesy of GENERAL MOTORS COMPANY

    Rear Tire Front Air Deflector- Left Side (2) - Install

  45. Rear Tire Front Air Deflector Bolt (1) - Install and tighten [2x] - Fastener Specifications
  46. Remove the support and lower the vehicle.
  47. Inspect the exhaust system for leaks.
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