K 1500 Yukon Denali AWD V8-6.0L VIN U (2002)
1. Install a new exhaust manifold pipe seal to the exhaust manifold pipe.
2. Install the exhaust manifold pipe.
3. Apply lubricant to the exhaust pipe hanger bracket, in order to aid in installation.
4. Slide the exhaust manifold pipe hanger into the exhaust pipe hanger bracket.
Notice: Refer to Fastener Notice in Cautions and Notices.
5. Install the exhaust manifold pipe nuts.
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Tighten the nuts to 50 Nm (39 ft. lbs.).
6. If the exhaust manifold pipe was replaced perform the following:
6.1.
Apply anti-seize compound GM P/N 12377953 or equivalent to the threads of the old oxygen sensor.
6.2.
Install the old oxygen sensor.
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Tighten the oxygen sensor to 42 Nm (31 ft. lbs.).
7. If the exhaust manifold pipe was not replaced perform the following:
7.1.
Connect the oxygen sensor electrical connector.
7.2.
Connect the CPA retainer.
7.3.
Install the clip around the engine harness and the oxygen sensor pigtail.
