Valve Rocker Arm Cover Replacement - Right Side 5.3L

1. Remove the air conditioning (A/C) compressor hose. Refer to Compressor Hose Assembly Replacement.
2. Remove the connector position assurance (CPA) lock.
3. Disconnect the main electrical connector (1) to the ignition coil wire harness.
4. Remove the harness clips.
5. Reposition the engine harness, if necessary.
6. Remove the spark plug wires from the ignition coils.

•	Twist each plug wire ½ turn.

•	Pull only on the boot in order to remove the wire from the ignition coil.




7. If necessary, remove the ignition coil bracket studs from the rocker arm cover.
8. If necessary, remove the ignition coils (719) and bracket from the rocker cover.



9. Remove the vent hose (2) from the valve rocker arm cover (1).



10. Remove the valve rocker arm cover bolts.
11. Remove the valve rocker arm cover.



12. Remove the gasket (1) from the rocker cover.
13. Discard the OLD gasket.



14. Remove the oil fill cap (424) from the oil fill tube.
15. Remove the oil fill tube (423) from the rocker cover, if required.
16. Discard the oil fill tube.

Note: 

•	All gasket surfaces should be free of oil or other foreign material during assembly.

•	DO NOT reuse the valve rocker arm cover gasket.

•	The valve rocker arm cover bolt grommets may be reused.

•	If the oil fill tube has been removed from the rocker arm cover, install a NEW fill tube during assembly.

1. Lubricate the O-ring seal (422) of the NEW oil fill tube with clean engine oil.
2. Insert the NEW oil fill tube (423) into the rocker arm cover.

Rotate the tube clockwise until locked in the proper position.

3. Install the oil fill cap (424) into the tube.

Rotate the cap clockwise until locked in the proper position.




4. Install a NEW rocker cover gasket (1) into the valve rocker arm cover.



5. Install the valve rocker arm cover onto the cylinder head.

Caution: Refer to Fastener Caution in the Preface section.

6. Install new rocker arm cover grommets, if necessary.
7. Install the rocker arm cover bolts and grommets. Tighten the bolts to 12 N·m (106 lb in).



8. Install the vent hose (2) to the valve rocker arm cover (1).



9. Apply threadlock to the threads of the bracket bolts. Refer to Adhesives, Fluids, Lubricants, and Sealers for the correct part number.
10. If necessary, install the ignition coils (719) and bracket to the rocker arm cover.
11. If necessary, install the ignition coil bracket studs to the rocker cover and tighten to 12 N·m (106 lb in).



12. Install the spark plug wires to the ignition coils.
13. Position the engine harness, if necessary.
14. Install the harness clips.
15. Connect the main electrical connector (1) feeding the ignition coils.
16. Install the CPA lock.
17. Install the A/C compressor hose. Refer to Compressor Hose Assembly Replacement.

Valve Rocker Arm Cover Replacement - Right Side 6.0L

1. Remove the intake manifold sight shield. Refer to Upper Intake Manifold Sight Shield Replacement.
2. Remove the air conditioning (A/C) compressor hose. Refer to Compressor Hose Assembly Replacement.
3. Remove the connector position assurance (CPA) lock.
4. Disconnect the main electrical connector (1) to the ignition coil wire harness.
5. Remove the harness clips.
6. Reposition the engine harness, if necessary.
7. Remove the spark plug wires from the ignition coils.

•	Twist each plug wire ½ turn.

•	Pull only on the boot in order to remove the wire from the ignition coil.




8. If necessary, remove the ignition coil bracket studs from the rocker arm cover.
9. If necessary, remove the ignition coils (719) and bracket from the rocker cover.



10. Remove the vent hose (2) from the valve rocker arm cover (1).



11. Remove the valve rocker arm cover bolts.
12. Remove the valve rocker arm cover.



13. Remove the gasket (1) from the rocker cover.
14. Discard the OLD gasket.



15. Remove the oil fill cap (424) from the oil fill tube.
16. Remove the oil fill tube (423) from the rocker cover, if required.
17. Discard the oil fill tube.

Note: 

•	All gasket surfaces should be free of oil or other foreign material during assembly.

•	DO NOT reuse the valve rocker arm cover gasket.

•	The valve rocker arm cover bolt grommets may be reused.

•	If the oil fill tube has been removed from the rocker arm cover, install a NEW fill tube during assembly.

1. Lubricate the O-ring seal (422) of the NEW oil fill tube with clean engine oil.
2. Insert the NEW oil fill tube (423) into the rocker arm cover.

Rotate the tube clockwise until locked in the proper position.

3. Install the oil fill cap (424) into the tube.

Rotate the cap clockwise until locked in the proper position.




4. Install a NEW rocker cover gasket (1) into the valve rocker arm cover.



5. Install the valve rocker arm cover onto the cylinder head.

Caution: Refer to Fastener Caution in the Preface section.

6. Install new rocker arm cover grommets, if necessary.
7. Install the rocker arm cover bolts and grommets.

Tighten
Tighten the bolts to 12 N·m (106 lb in).




8. Install the vent hose (2) to the valve rocker arm cover (1).



9. Apply threadlock to the threads of the bracket bolts. Refer to Adhesives, Fluids, Lubricants, and Sealers.
10. If necessary, install the ignition coils (719) and bracket to the rocker arm cover.
11. If necessary, install the ignition coil bracket studs to the rocker cover.

Tighten
Tighten the studs to 12 N·m (106 lb in).




12. Install the spark plug wires to the ignition coils.
13. Position the engine harness, if necessary.
14. Install the harness clips.
15. Connect the main electrical connector (1) feeding the ignition coils.
16. Install the CPA lock.
17. Install the A/C compressor hose. Refer to Compressor Hose Assembly Replacement.
18. Install the intake manifold sight shield. Refer to Upper Intake Manifold Sight Shield Replacement.