Valve Rocker Arm Cover Cleaning and Inspection 7.0L

Important: 

•	Do not use the valve rocker arm cover gasket again. Install a NEW gasket during assembly.

•	Remove the ignition coils before cleaning the cover in solvent. Do not submerge the ignition coils in solvent.

•	Do not remove the oil cap from the right valve rocker arm cover, unless service is required. If the cap is removed, install a NEW cap during assembly.

1. Inspect the oil cap (424) for a loose fit, leakage, or damage.
2. Inspect the covers (505) for the following conditions:

•	Scoring or damage to the gasket surfaces

•	Ventilation system passages for restrictions

•	Threaded bolt holes for damage or debris

•	Leakage at the oil cap seal (450)

Valve Rocker Arm Cover Cleaning and Inspection 6.2L

Important: 

•	Do not use the valve rocker arm cover gasket again. Install a NEW gasket during assembly.

•	Remove the ignition coils before cleaning the cover in solvent. Do not submerge the ignition coils in solvent.

•	Do not remove the oil fill tube from the covers unless service is required. If the tube is removed from the cover, install a NEW tube (423) and seal (422) during assembly.

1. Inspect the oil fill tube (423) for a loose fit or damage.
2. Inspect the covers (505) for the following conditions:

•	Scoring or damage to the gasket surfaces

•	Ventilation system passages for restrictions

•	Threaded bolt holes for damage or debris