Chevrolet Sonic Repair Manual: Cleanliness and Care
An automobile engine is a combination of many machined, honed, polished, and lapped surfaces with tolerances that are measured in ten thousandths of an inch. When any internal engine parts are serviced, care and cleanliness are important. A liberal coating of engine oil should be applied to friction areas during assembly to protect and lubricate the surfaces during initial operation. Throughout this section, it should be understood that proper cleaning and protection of machined surfaces and friction areas are part of the repair procedure. This is considered standard shop practice even if not specifically stated.
When valve train components are removed for service, they should be retained in order. At the time of installation, they should be installed in the same locations and with the same mating surfaces as when removed.
Charging System Description and Operation
Electrical Power Management Overview
The electrical power management system is designed to monitor and control
the charging system and send diagnostic messages to alert the driver of possi ...
Drive Range, First Gear Engine Braking (Gen 1)
When the gear selector lever is moved to the Drive (D) range from the Neutral
(N) position, the transmission will provide engine braking. In this operating range,
the normally-low 1234 pressure co ...
Other materials:
How the System Works
The LDW camera sensor is on the windshield ahead of the rearview mirror.
To turn LDW on and off, press the LANE DEPART button on the steering wheel. The
control indicator will light when LDW is on.
When the vehicle is started, the LDW indicator on top of the instrument panel
to the right o ...
Steering Angle Sensor Centering
The steering angle sensor does not require centering often. Centering of the
steering angle sensor might be required after certain service procedures are performed.
Some of these procedures are as follows:
Wheel alignment
Steering gear replacement
Steering column replacement
Collision ...
Cylinder Head Assemble
Special Tools
EN-958 Valve Stem Seal Installer
EN-8062 Valve Spring Compressor
EN-8062-5 Adapter
EN-50717-2 Compressor Assembly of EN-50717 Kit
For equivalent regional tools, refer to Special Tools.
Lubricate the valve stem and the valve guide with clean engine oil.
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