Removal Procedure

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Engine Protection Shield

Courtesy of GENERAL MOTORS CORP.

Raise and suitably support the vehicle. Refer to LIFTING & JACKING THE VEHICLE .
Remove the engine shield bolts and shield, if necessary.

Fig 2: View of Oil Pan Skid Plate & Bolts

Courtesy of GENERAL MOTORS CORP.

Remove the oil pan skid plate bolts and plate, if necessary.

Fig 3: View Of Transmission & HO2S Sensor Electrical Connector

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Disconnect the CPA retainer.
Disconnect the oxygen sensor electrical connector (1).
Support the catalytic converter or exhaust manifold pipe with adjustable jackstands.

Fig 4: View of Right Exhaust Manifold Pipe Nuts

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Remove the right exhaust manifold pipe nuts.

Fig 5: View of Left Exhaust Manifold Pipe Nuts

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Remove the left exhaust manifold pipe nuts.
Remove the exhaust hanger mounting bracket bolts.
Lower the catalytic converter or exhaust manifold pipe using the adjustable jackstands.
Remove the exhaust manifold pipe seal(s).