K 3500 Truck 4WD V8-6.6L DSL Turbo VIN 1 (2001)
5. If equipped with a 6.0L or 8.1L engine, perform the following:
5.1.
Remove the clip around the engine harness and the oxygen sensor pigtail.
5.2.
Disconnect the Connector Position Assurance (CPA) retainer.
5.3.
Disconnect the oxygen sensor electrical connector.
5.4.
If replacing the exhaust manifold pipe, remove the oxygen sensor.
6. if equipped with a 6.0L or 8.1L engine, remove the exhaust manifold pipe nuts.
7. If equipped with the 6.6L engine, remove the exhaust muffler nuts.
