Sierra 3500 2WD V8-6.0L VIN U (2004)
10. If equipped with a 6.0L or 8.1L engine, perform the following:
1. Unclip the oxygen sensor connector from the frame.
2. Disconnect the Connector Position Assurance (CPA) retainer.
3. Disconnect the oxygen sensor electrical connector.
11. If equipped with a 6.0L or 8.1L engine, perform the following:
1. Unclip the oxygen sensor connector from the support.
2. Disconnect the CPA retainer.
3. Disconnect the oxygen sensor electrical connector.
12. If equipped with a 6.0L or 8.1L engine, perform the following:
1. Unclip the oxygen sensor connector from the support.
2. Disconnect the CPA retainer.
3. Disconnect the oxygen sensor electrical connector.
