Sierra 1500 4WD V8-5.3L VIN T (2004)
Tighten
Tighten the sensor to 42 N.m (31 lb ft).
3. If equipped with a 6.0L engine, connect the HO2S electrical connector (2).
4. If equipped with a 4.8L or 5.3L engine, connect the HO2S electrical connector (2).
5. If equipped with a fuel composition sensor, install the HO2S electrical connector to the fuel line clip.
6. Disconnect the CPA retainer.
7. If equipped, connect the fuel composition sensor electrical connector.
8. Lower the vehicle.
