Chevrolet Sonic Repair Manual: Camshaft

Valve Guide Reaming, and Valve and Seat Grinding

Valve Cleaning Procedure Use soft bristle wire brush to clean any carbon build-up from the valve head. DO NOT use a wire brush on any part of the valve stem. The valve stem is chr ...

Camshaft Actuator System Description

Camshaft Actuator System Overview (1) Camshaft Actuator Vane (2) Timing Chain Sprocket (3) Engine Oil Pressure-For retarding ...

Other materials:

Selecting the Right Engine Oil
Selecting the right engine oil depends on both the proper oil specification and viscosity grade. See Recommended Fluids and Lubricants. Specification Use and ask for licensed engine oils with the dexos1® approved certification mark. Engine oils meeting the requirements for the vehicle should ...

SIR Service Precautions
General Service Instructions Warning: When performing service on or near the SIR components or the SIR wiring, the SIR system must be disabled. Refer to SIR Disabling and Enabling . Failure to observe the correct procedure could cause deployment of the SIR components, person ...

Timing Belt Tensioner Replacement
Special Tools EN-6333 Timing Belt Tensioner Locking Pin EN-6340 Camshaft Locking Tool EN-45059 Torque Angle Sensor Kit For equivalent regional tools, refer to Special Tools. Removal Procedure Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement. ...