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:
Airbag Sensing and Diagnostic Module Replacement
Airbag Sensing and Diagnostic Module Replacement
Callout
Component Name
Warning: Refer to SIR Warning.
Warning: Do not strike or jolt the inflatable restraint sensing
and diagnostic module (SDM). Before apply ...
Vehicle Speed Sensor Replacement
Vehicle Speed Sensor Replacement
Callout
Component Name
1
Engine Wiring Harness Bracket Nut
Caution: Refer to Fastener Caution.
Tighten
9 Y (80 lb in)
2
...
Heated Oxygen Sensor Replacement - Sensor 1
Heated Oxygen Sensor Replacement - Sensor 1
Callout
Component Name
Warning: In order to avoid being burned, do not service the
exhaust system while it is still hot. Service the system when it is
cool.
Prelimi ...
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