K 2500 Yukon XL 4WD V8-8.1L VIN G (2001)
15. If equipped with a 6.0L or 8.1L engine, install the exhaust manifold pipe nuts.
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Tighten the exhaust manifold pipe nuts to 50 Nm (39 ft. lbs.).
16. If equipped with a 6.0L or 8.1L engine, and the exhaust manifold pipe was replaced perform the following:
16.1.
Apply anti-seize compound GM P/N 12377953 or equivalent to the threads of the old oxygen sensor.
16.2.
Install the old oxygen sensor.
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Tighten the oxygen sensor to 42 Nm (31 ft. lbs.).
17. If equipped with a 6.0L or 8.1L engine, and the exhaust manifold pipe was not replaced perform the following:
17.1.
Connect the oxygen sensor electrical connector.
17.2.
Connect the CPA retainer.
17.3.
Install the clip around the engine harness and the oxygen sensor pigtail.
18. If equipped with the 4.3L, 4.8L, 5.3L, 6.0L, or 8.1L engines, install the exhaust muffler.
19. Install the oil pan skid plate and bolts, if necessary.
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Tighten the oil pan skid plate bolts to 20 Nm (15 ft. lbs.).
