Chevrolet Sonic Repair Manual: Valvetrain

Starter Replacement (LUW)

Removal Procedure Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection. Raise and support the vehicle. Refer to Lifting and Jacking ...

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 ...

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 ...

Piston, Connecting Rod, and Bearing Installation
Special Tools EN-470-B Angular Torque Wrench For equivalent regional tools, refer to Special Tools. Adjust the piston ring joints as follows: Upper compression ring (1). Lower compression ring (4). Oil rings (2) or (3). Oil ring spacer (5). ...

Transmission Case Cleaning and Inspection
Transmission Case Cleaning and Inspection Callout Component Name Caution: Do not use abrasive pads or bristle devices to clean the sealing surfaces. Abrasive pads produce a fine grit that can effect transmission func ...