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:
Front Seat Cushion Cover and Pad Replacement
Front Seat Cushion Cover and Pad Replacement
Callout
Component Name
Warning: Refer to SIR Warning.
Preliminary Procedures
Remove the driver or passenger seat. Refer to Driver or Passenger
Seat Removal and Inst ...
Evaporator Air Temperature Sensor Replacement (LHD)
Evaporator Air Temperature Sensor Replacement
Callout
Component Name
1
Evaporator Air Refrigerant Temperature Sensor
Procedures
Disconnect the refrigerant temperature sensor
electrical connector.
Twist a ...
Drive Range - Fourth Gear (Gen 2)
As vehicle speed increases, the transmission control module (TCM) processes input
signals from the automatic transmission input and output speed sensors, the throttle
position sensor and other vehicle sensors to determine the precise moment to command
OFF the normally-low 35R pressure control ...
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