Malibu L4-2.4L (2010)
Camshaft: Service and Repair
Camshaft Position Exhaust Actuator Replacement
Camshaft Position Exhaust Actuator Replacement
Special Tools
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EN-45059 - Angle Meter
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EN-48749 - Timing Chain Retention Tool Kit
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EN-48953 - Camshaft Actuator Locking Tool
For equivalent regional tools, refer to Special Tools (See: Tools and Equipment).
Removal Procedure
1. Remove the camshaft cover. Refer to Camshaft Cover Replacement (See: Cylinder Head Assembly/Valve Cover/Service and Repair).
2. Remove the spark plugs. Refer to Spark Plug Replacement (See: Tune-up and Engine Performance Checks/Spark Plug/Service and Repair).
3. Rotate the crankshaft clockwise and install the EN-48953 - locking tool (1).
Caution: Refer to Fastener Caution (See: Service Precautions/Vehicle Damage Warnings/Fastener Caution).
4. Install the camshaft actuator retainer bolts and tighten to 10 Nm (89 lb in).
5. Loosen, but do not remove the exhaust camshaft actuator bolt.
6. Remove the EN-48953 - locking tool (1).
7. Clean the timing chain and gears with solvent.
Note: Ensure the timing chain and the camshaft position actuators are marked for proper assembly.
8. Mark the intake and exhaust camshaft actuators and the respective locations on the timing chain.
