Sierra 1500 2WD V6-4.3L VIN X (2004)
6. Remove the air cleaner adapter nut.
7. In order to remove the air cleaner outlet duct, pivot the duct upward until the hinge clip releases from the lip on the throttle body.
8. Remove the oil level indicator tube.
9. Disconnect the spark plug wires from the spark plugs.
10. Remove the spark plug wire retainer bolt.
11. Reposition the wire retainer to the top of the engine.
12. Remove the spark plugs.
13. Remove the exhaust manifold and spark plug heat shield bolts.
14. Remove the exhaust manifold and spark plug heat shields.
