K 2500 Yukon XL 4WD V8-8.1L VIN G (2001)
1. Coat the threads of the heated oxygen sensor with anti-seize compound P/N 12377953, or equivalent if necessary.
NOTE: Refer to Fastener Notice in Service Precautions.
2. Install the heated oxygen sensor (2).
Tighten
Tighten the HO2S to 41 N.m (30 lb ft).
3. Connect the HO2S electrical connector (1).
4. Lower the vehicle.
