K 1500 Truck 4WD V8-4.8L VIN V (2003)
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.