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 Adjustment
Special Tools CH-21177-A Drum to Brake Shoe Clearance Gauge For equivalent regional tools, refer to Special Tools. Warning: Refer to Brake Dust Warning. Ensure the park brake lever is in the fully released position. Remove the front floor console cupholder insert. Note ...

Crankcase Ventilation System Inspection/Diagnosis
Results of Incorrect Operation A plugged positive crankcase ventilation (PCV) orifice or hose may cause the following conditions: Rough idle Stalling or slow idle speed Oil leaks Oil in the throttle body Sludge in the engine Functional Check With thes ...

Intake Manifold Replacement (LDE)
Removal Procedure Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection. Remove the throttle body assembly. Refer to Throttle Body Assembly Replacement. Disconnect wiring harness plug. Disconnect the pipes from ...