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.
Diagnostic Procedure Instructions provides an overview of each
diagnostic category.
Circuit/System De
Special Tools
EN-43963 Valve Spring Compressor (off car)
EN-46116 Valve Stem Seal Remover/Installer
EN-50717 Valve Spring Compressor
For equivalent regional tools, refer to Special Tools.
1.
Remove the intake camshaft position sensor (2) and bolt (1).
2.
Remove the exhaust camshaft position