C 1500 Yukon XL 2WD V8-8.1L VIN G (2001)
5. If equipped with a 4.3L, 4.8L, or 5.3L engine, install the right exhaust manifold pipe nuts.
6. If equipped with a 4.3L, 4.8L, or 5.3L engine, install the left exhaust manifold pipe nuts.
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Tighten the exhaust manifold pipe nuts to 50 Nm (39 ft. lbs.).
7. If equipped with a 6.0L or 8.1L engine, perform the following:
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Connect the oxygen sensor electrical connector.
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Connect the CPA retainer.
8. Remove the adjustable jackstands from catalytic converter or exhaust manifold pipe.
9. If equipped with a 4.3L, 4.8L, or 5.3L engine, perform the following:
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Connect the oxygen sensor electrical connector (1).
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Connect the CPA retainer.