SIR Service Precautions
WARNING: If a service procedure indicates that a module is to be
replaced, a new
production unit MUST be ordered from the GM Parts Catalog or certified
supplier. Using a module that has been reset by a 3rd party company is strictly
prohibited. Not using a new production unit
DESCRIPTION
Examples used in this article are general in nature and do not necessarily
relate to a specific engine or
system. Illustrations and procedures have been chosen to guide mechanic through
engine overhaul
process. Descriptions of cleaning, inspection, and assembly processes are
included.