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.

Raise and support the vehicle. Lifting and Jacking the Vehicle
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Rear Tire Front Air Deflector Bolt- Left Side and Right Side (1) - Remove [4x]
Rear Tire Front Air Deflector- Left Side and Right Side (2) - Remove [2x]
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Rear Wheelhouse Liner Bolt- Left Side (1) - Remove
Underbody Rear Air Deflector Nut- Left Side (2) - Remove [3x]
Underbody Rear Air Deflector Bolt- Left Side (3) - Remove [3x]
Underbody Rear Air Deflector Nut- Left Side (4) - Remove [2x]
Underbody Rear Air Deflector- Left Side (5) - Remove
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Rear Wheelhouse Liner Bolt- Right Side (1) - Remove
Underbody Rear Air Deflector Bolt- Right Side (2) - Remove [3x]
Underbody Rear Air Deflector Nut- Right Side (3) - Remove [3x]
Underbody Rear Air Deflector Nut- Right Side (4) - Remove [2x]
Underbody Rear Air Deflector- Right Side (5) - Remove
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Underbody Front Air Deflector Bolt- Right Side (1) - Remove [6x]
Underbody Rear Air Deflector Nut- Right Side (2) - Remove [5x]
Transmission Fluid Cooler Pipe Bracket Bolt- Right Side (3) - Remove [2x]
Underbody Rear Air Deflector- Right Side (5) - Remove
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Underbody Front Air Deflector Bolt- Left Side (1) - Remove [6x]
Underbody Rear Air Deflector Nut- Left Side (2) - Remove [5x]
Transmission Fluid Cooler Pipe Bracket Bolt- Left Side (3) - Remove [2x]
Underbody Rear Air Deflector- Left Side (5) - Remove
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Floor Panel Number 4 Cross Bar Reinforcement Bolt (1) - Remove [6x]
Floor Panel Reinforcement (2) - Remove
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Catalytic Converter Nut (1) - Remove [2x]
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Exhaust Pipe Clamp (1) - Loosen [2x]
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Exhaust Muffler (1) @ Exhaust Intermediate Pipe Insulator-Left Side (2) - Separate [2x]
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Exhaust Muffler (1) @ Exhaust Intermediate Pipe Insulator-Right Side (2) - Separate [2x]
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Electrical Connector (1) - Disconnect
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Electrical Connector (1) - Disconnect
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NOTE:
The rear bumper fascia is removed for illustration purposes only.

Exhaust Muffler Hanger Bracket Nut (1) - Remove [4x]
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With the aid of an assistant, remove the exhaust muffler (1).
Catalytic Converter Gasket (2) - Remove and DISCARD
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Exhaust Heat Shield Bolt (1) - Remove [2x]
Exhaust Intermediate Underbody Heat Shield (2) - Remove
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Floor Panel Number 2 Cross Bar Reinforcement Bolt (1) - Remove [4x]
Floor Panel Number 2 Cross Bar Reinforcement (2) - Remove
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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.
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Mark (3) the relationship of the propeller shaft flange (1) and the rear axle pinion flange (2).
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NOTE:
Ensure that the propeller shaft is secured to the jack stand.

Support the propeller shaft with a suitable jack stand.
Remove the 3 front propeller shaft bolts (2) and the 3 front propeller shaft nuts (1).
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Remove the 3 rear propeller shaft bolts (1) and the 3 rear propeller shaft nuts (2).
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Remove the 2 propeller shaft bearing support bolts (1).
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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.
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Remove the propeller shaft (1) from the vehicle.
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Retaining Clip (3) - Disengage [2x]
Transmission Fluid Cooler Inlet and Outlet Pipe (2) @ Transmission Fluid Auxiliary Cooler Inlet Pipe (1) - Disconnect
Transmission Fluid Cooler Inlet and Outlet Pipe (4) @ Transmission Fluid Auxiliary Cooler Outlet Pipe (5) - Disconnect
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Transmission Fluid Cooler Pipe Clip (1) - Disengage [2x]
Retaining Clip (3) - Disengage
Transmission Fluid Auxiliary Cooler Inlet Pipe (2) - Disconnect
Transmission Fluid Auxiliary Cooler Inlet Pipe (2) - Remove
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Transmission Fluid Cooler Pipe Clip (1) - Disengage [2x]
Retaining Clip (3) - Disengage
Transmission Fluid Auxiliary Cooler Outlet Pipe (2) - Disconnect
Transmission Fluid Auxiliary Cooler Outlet Pipe (2) - Remove
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Fuel Tank Shield Retainer (1) - Remove [5x]
Fuel Tank Shield (2) - Remove