Yukon 4WD V8-5.3L (2008)
5. Disconnect the left front heated oxygen sensor (HO2S) electrical connector (2) from the engine wiring harness electrical connector (3).
6. Remove the left rear CPA retainer (1).
7. Disconnect the left rear HO2S electrical connector from the engine wiring harness electrical connector (3).
8. Remove the catalytic converter to exhaust manifold nuts (2).
9. Separate the catalytic converter from the exhaust manifold studs.
10. Slide the catalytic converter hanger (1) out from the hanger bracket.
11. If replacing the catalytic converter perform the following steps, otherwise proceed to step 4 in the installation procedure.
12. Remove the exhaust seal (3) as required.
