gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Catalytic Converter Replacement (Gas, Below 8600 Lb (GVWR))|Page 3613 > < Catalytic Converter Replacement (Gas, Below 8600 Lb (GVWR))|Page 3611
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Catalytic Converter: Service and Repair
Catalytic Converter Replacement (Gas, 8600 Lb and Above (GVWR))

REMOVAL PROCEDURE

1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle.
2. Disconnect the oxygen sensor electrical connections.

3. Remove the nuts from the Y-pipe flat flange.

4. Remove the nuts, studs and flange seals from the Y-pipe and the exhaust manifold.

Catalytic Converter Replacement (Gas, Below 8600 Lb (GVWR))|Page 3613 > < Catalytic Converter Replacement (Gas, Below 8600 Lb (GVWR))|Page 3611