Installation Procedure

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Anti-Rotation Tab Of Lower Brace Bracket

Courtesy of GENERAL MOTORS COMPANY

Inspect the anti-rotation tab of the lower brace bracket (2) to ensure that the tab is flush with the oil pan rib.

CAUTION:

Refer to Fastener Caution .

If the brace bracket has been removed or adjustment is required, position the bracket and tighten the bolt (1) to 22 N.m (16 lb ft).

Fig 2: Catalytic Converter Seal

Courtesy of GENERAL MOTORS COMPANY

NOTE:

Install a NEW catalytic converter seal.

Install Catalytic Converter Seal (3)
Install Warm Up Three-Way Catalytic Converter (2)
Hand tighten Catalytic Converter Nut (1)

Fig 3: Catalytic Converter Brace Bracket

Courtesy of GENERAL MOTORS COMPANY

NOTE:

Ensure the brace bracket is flush with the engine block boss.

Install Catalytic Converter Brace Bracket-Upper (2)
Hand tighten Catalytic Converter Brace Bracket Bolt (1)

Fig 4: Catalytic Converter Brace Bracket-Lower And Bolts

Courtesy of GENERAL MOTORS COMPANY

NOTE:

Ensure the brace bracket is flush with the catalytic converter tab.

Install Catalytic Converter Brace Bracket-Lower (3)
Hand tighten Catalytic Converter Brace Bracket Bolt (2)
Hand tighten Catalytic Converter Brace Bracket Bolt (1)

Fig 5: Catalytic Converter Seal

Courtesy of GENERAL MOTORS COMPANY

NOTE:

Tighten the catalytic converter nuts in a cross pattern.

Catalytic Converter Nut (1) Tighten 50 N.m (37 lb ft)

Fig 6: Catalytic Converter Brace Bracket

Courtesy of GENERAL MOTORS COMPANY

Catalytic Converter Brace Bracket Bolt (1) Tighten 22 N.m (16 lb ft)

Fig 7: Catalytic Converter Brace Bracket-Lower And Bolts

Courtesy of GENERAL MOTORS COMPANY

Catalytic Converter Brace Bracket Bolt (1) Tighten 22 N.m (16 lb ft)
Catalytic Converter Brace Bracket Bolt (2) Tighten 58 N.m (43 lb ft)

Fig 8: Heated Oxygen Sensor Electrical Connector

Courtesy of GENERAL MOTORS COMPANY

Connect Heated Oxygen Sensor Electrical Connector (1)
Install Exhaust Muffler - Exhaust Muffler Replacement (LTG)
Install Turbocharger Heat Shield - Turbocharger Heat Shield Replacement