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 ...

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Hill and Mountain Roads
Driving on steep hills or through mountains is different than driving on flat or rolling terrain. Tips for driving in these conditions include: Keep the vehicle serviced and in good shape. Check all fluid levels and brakes, tires, cooling system, and transmission. Shift to a lower gear whe ...

Certification Label
Label Example A vehicle-specific Certification label is attached to the vehicle's center pillar (B-pillar). The label tells the gross weight capacity of the vehicle, called the Gross Vehicle Weight Rating (GVWR). The GVWR includes the weight of the vehicle, all occupants, fuel, and carg ...

Turbocharger Removal
Special Tool EN-49942 Holding Wrench For equivalent regional tools, refer to Special Tools. Install the EN-49942 holding wrench  (2) to the turbocharger coolant feed pipe. Guide a ratchet wrench (1) along with an extension through EN-49942 holding wrench to the turbo ...