Installation Procedure

Install the exhaust manifold pipe seal(s).
Raise the catalytic converter or exhaust manifold pipe using the adjustable jackstands.

Fig 1: View Of Right Exhaust Pipe Nuts

Courtesy of GENERAL MOTORS CORP.

Fig 2: View Of Left Exhaust Manifold Pipe & Nuts

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to FASTENER NOTICE in Cautions and Notices.

Install the left exhaust manifold pipe nuts.
Tighten: Tighten the nuts to 50 N.m (37 lb ft).
Remove the adjustable jackstands from catalytic converter or exhaust manifold pipe.

Fig 3: View Of O2 Sensor Harness Routing

Courtesy of GENERAL MOTORS CORP.

Perform the following:
1. Connect the oxygen sensor electrical connector (1).
2. Connect the CPA retainer.
3. Clip the oxygen sensor electrical connector to the hose clip.

Fig 4: View Of O2 Sensor Harness Routing And Harness Mounting Brackets

Courtesy of GENERAL MOTORS CORP.

Perform the following:
1. Connect the forward oxygen sensor electrical connector.
2. Connect the CPA retainer.
3. Install the clip around the engine harness and the oxygen sensor pigtail.
Lower the vehicle.