GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Chevrolet
🢒
2005
🢒
Impala
🢒
Engine
🢒
Engine Mechanical - 3.8L
🢒 Valve Rocker Arm Cover Cleaning and Inspection
Clean the valve rocker arm cover mating surface.
Clean the valve rocker arm cover. Remove all the sludge and the oil deposits.
Inspect the valve rocker arm cover for damage. Replace the valve rocker arm cover if any damage is found.