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:
Engine Coolant Thermostat Housing Replacement (LUW)
Removal Procedure
Remove the battery tray. Refer to Battery Tray Replacement.
Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
Drain the cooling system. Refer to Cooling System Draining and Filling.
Disconnect the engine harness conn ...
Turbocharger Oil Return Pipe Replacement
Removal procedure
Remove the drivetrain and front suspension frame skid plate, if equipped.
Refer to Drivetrain and Front Suspension Frame Skid Plate Replacement.
Note: Simplified Graphic. DO NOT remove the warm up three
way catalytic converter.
...
Timing Belt Center Front Cover Replacement
Timing Belt Center Front Cover Replacement
Callout
Component Name
Preliminary Procedure
Remove the timing belt upper front cover. Refer to Timing Belt Upper
Front Cover Replacement.
Remove the engine mount bracket. Refer ...
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