For service and parts needs, visit
your dealer. You will receive
genuine GM parts and GM-trained
and supported service people.
Genuine GM parts have one of
these marks:
California Proposition
65 War
Warning:
It can be dangerous to work on
your vehicle if you do not have
the proper knowledge, service
manual, tools, or parts. Always
follow owner's manual procedures
and consult the service manual
fo
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Refer to Diagnostic Procedure Instructions provide an overview of each
diagnostic category.
Diagnosti
NOTE: This information is intended as a quick reference for firing
order and
cylinder identification only. The information provided covers many
vehicles and may include some information that does not apply to the
vehicle you have currently selected.
3 CYLINDER ENGINE
4 CYLINDER ENGINE
5 CYLINDER