Valve Rocker Arm Cover Replacement - Left Side 5.3L
Removal Procedure
- Remove the connector position assurance (CPA) lock.
- Disconnect the main electrical connector (5) to the ignition coil wire harness.
- Remove the harness clips.
- Reposition the engine harness, if necessary.
- 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. |
- If necessary, remove the ignition coil
bracket studs from the rocker arm cover.
- If necessary, remove the ignition coils (719) and bracket from the rocker arm cover.
- Remove the positive crankcase ventilation (PCV) hose from the rocker arm cover.
- Remove the valve rocker arm cover bolts.
- Remove the valve rocker arm cover.
- Remove the gasket (1) from the rocker cover.
- Discard the OLD gasket.
Installation Procedure
Important:
• | All gasket surfaces should be free of oil and/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 PCV valve grommet has been removed from the rocker cover, install a NEW grommet during assembly. |
- Install a NEW rocker cover gasket (1) into the groove of the valve rocker arm cover.
- Install the valve rocker arm cover onto the cylinder
head.
Notice: Refer to Fastener Notice in the Preface section.
- Install new rocker arm cover grommets, if necessary.
- Install the rocker arm cover bolts.
Tighten
Tighten the bolts to 12 N·m (106 lb in).
- Install the PCV hose to the rocker arm cover.
- Apply threadlock to the threads of
the bracket bolts. Refer to
Adhesives, Fluids, Lubricants, and Sealers
for the correct part number.
- If necessary, install the ignition coils (719) and bracket to the rocker arm cover.
- If necessary, install the ignition coil bracket studs to the rocker arm cover.
Tighten
Tighten the studs to 12 N·m (106 lb in).
- Install the spark plug wires to the ignition coils.
- Position the engine harness, if necessary.
- Install the harness clips.
- Connect the main electrical connector (5) to the ignition coil wire harness.
- Install the CPA lock.
Valve Rocker Arm Cover Replacement - Left Side 6.0L
Removal Procedure
- Remove the intake manifold sight shield. Refer to
Upper Intake Manifold Sight Shield Replacement
.
- Remove the connector position assurance (CPA) lock.
- Disconnect the main electrical connector (5) to the ignition coil wire harness.
- Remove the harness clips.
- Reposition the engine harness, if necessary.
- 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. |
- If necessary, remove the ignition coil
bracket studs from the rocker arm cover.
- If necessary, remove the ignition coils (719) and bracket from the rocker arm cover.
- Remove the positive crankcase ventilation (PCV) hose from the rocker arm cover.
- Remove the valve rocker arm cover bolts.
- Remove the valve rocker arm cover.
- Remove the gasket (1) from the rocker cover.
- Discard the OLD gasket.
Installation Procedure
Important:
• | All gasket surfaces should be free of oil an/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 PCV valve grommet has been removed from the rocker cover, install a NEW grommet during assembly. |
- Install a NEW rocker cover gasket (1) into the groove of the valve rocker arm cover.
- Install the valve rocker arm cover onto the cylinder
head.
Notice: Refer to Fastener Notice in the Preface section.
- Install new rocker arm cover grommets, if necessary.
- Install the rocker arm cover bolts.
Tighten
Tighten the bolts to 12 N·m (106 lb in).
- Install the PCV hose to the rocker arm cover.
- Apply threadlock to the threads of
the bracket bolts. Refer to
Adhesives, Fluids, Lubricants, and Sealers
.
- If necessary, install the ignition coils (719) and bracket to the rocker arm cover.
- If necessary, install the ignition coil bracket studs to the rocker arm cover.
Tighten
Tighten the studs to 12 N·m (106 lb in).
- Install the spark plug wires to the ignition coils.
- Position the engine harness, if necessary.
- Install the harness clips.
- Connect the main electrical connector (5) to the ignition coil wire harness.
- Install the CPA lock.
- Install the intake manifold sight shield. Refer to
Upper Intake Manifold Sight Shield Replacement
.