Yukon 4WD V8-5.3L (2008)
17. Install the catalytic converter to exhaust manifold nuts. (1500 series shown, 2500 series similar).
Tighten the nuts to 50 N.m (37 lb ft).
Partially lower the vehicle in order to work through the wheel opening.
Install the HO2S. Refer to Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 (1500 Series) Heated Oxygen Sensor Replacement - Bank 2
Sensor 1 (2500 Series) .
