C 2500 Suburban 2WD V8-6.0L VIN U (2002)
13. Unclip the oxygen sensor connector from the frame.
14. Disconnect the connector position assurance (CPA) retainer.
15. Disconnect the oxygen sensor electrical connector,
16. Unclip the oxygen sensor connector from the support.
17. Disconnect the CPA retainer.
18. Disconnect the oxygen sensor electrical connector.
19. Unclip the oxygen sensor connector from the support.
20. Disconnect the CPA retainer.
21. Disconnect the oxygen sensor electrical connector.