C 2500 Suburban 2WD V8-6.0L VIN U (2002)
8. Remove the exhaust muffler. Refer to Muffler Replacement (4.8L and 5.3L Engines) or Muffler Replacement (6.0L and 8.1L Engines).
9. Remove the clip around the engine harness and the oxygen sensor pigtail.
10. Disconnect the connector position assurance (CPA) retainer.
11. Disconnect the oxygen sensor electrical connector.
12. If replacing the exhaust manifold pipe, remove the oxygen sensor.
13. Remove the exhaust manifold pipe nuts.
14. Remove the exhaust manifold pipe.
15. Slide the exhaust manifold pipe hanger out of the exhaust pipe hanger bracket.
16. Discard the exhaust manifold pipe seal.
Installation Procedure
