Yukon 4WD V8-5.3L (2008)
Notice: Refer to Fastener Notice .
3. Install the HO2S's (2 and 3) to the catalytic converter assembly.
Tighten the sensors to 42 N.m (31 lb ft).
4. Install the NEW exhaust seal (1) as required.
5. Slide the catalytic converter hanger (3) into the hanger bracket.
6. Install the catalytic converter to the exhaust manifold studs.
7. Install the catalytic converter to exhaust manifold nuts (2).
Tighten the nuts to 50 N.m (37 lb ft).
8. Install the right rear HO2S electrical connector clip to the engine harness clip (4).
9. Connect the engine wiring harness electrical connector (2) to the right rear HO2S electrical connector.
10. Install the right rear CPA retainer (3).
