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
Circuit/System Description
The camshaft position actuator solenoid valve - Intake and camshaft position
actuator solenoid valve -
exhaust system enables the engine control module (ECM) to change camshaft timing
while the engine is
running. The camshaft position actuator assembly varies camshaft po
Special Tools
EN-50656 Holding Tool
EN 50793 Locking Tool
For equivalent regional tools, refer to Special Tools.
Removal Procedure
NOTE: Ensure the engine is properly timed to Top Dead Center (TDC),
prior to
performing repairs.
1. Remove the camshaft cover. Refer to Camshaft Cover Replacement.