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:

Drum Brake Hardware Inspection
Warning: Refer to Brake Dust Warning. Visually inspect the drum brake upper return spring (1) for the following conditions: Excessive corrosion Excessive stretching Broken Missing If any of the conditions listed were found, the drum brake upper return sp ...

Rear Compartment Lid Hinge Torque Rod Replacement
Rear Compartment Lid Hinge Torque Rod Replacement Callout Component Name Warning: Refer to Hood Hold-Open Device Warning. Preliminary Procedure Open and support the rear compartment lid. Special Tools BO-125 ...

Cooling Fan Description and Operation (LWE, LUW)
System Overview The engine cooling fan system is composed of one cooling fan, 2 relays, the engine control module (ECM), and the associated wiring. The cooling fan assembly includes 1 resistor mounted in the cooling fan shroud. The cooling fan resistor may be a stand alone compon ...