gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Exhaust System - Catalytic Converter Precautions|Page 4666 > < Exhaust System - Catalytic Converter Precautions
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Catalytic Converter: Service and Repair

Catalytic Converter Replacement (4.8L and 5.3L Engines) 

Removal Procedure 

1. Raise and suitably support the vehicle. Refer to Vehicle Lifting.
2. Support the transmission with a suitable transmission jack.

3. Remove the transmission mount to transmission support nuts.
4. Raise the transmission off of the transmission support.

5. Remove the transmission support crossmember bolts and nuts.
6. Remove the transmission support crossmember.

Exhaust System - Catalytic Converter Precautions|Page 4666 > < Exhaust System - Catalytic Converter Precautions