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:
Special Tools (MIT Tool Instructions)
Bluetooth Pairing for Vehicles with
Radio RPO: UF7
Either reset the pin code on the radio to 0000, or go under Device Info on
the radio and see what the pin code is (to enter it later on the MIT).
Turn the BT discoverable ON in the radio Bluetooth
settings.
Press Pair De ...
Fuel Tank Heat Shield Replacement
Removal Procedure
Support the fuel tank with a suitable jack.
Remove the fuel tank strap fasteners (1) and lower the fuel tank straps (2).
Remove the fuel tank heat shield fasteners (1) and remove the fuel tank
heat shield (2).
...
Automatic Transmission Range Selector Lever Replacement
Removal Procedure
Set the park brake and chock the wheels.
Disconnect the transmission range selector lever cable
terminal (1) from the transmission manual shift lever pin.
Press the locking tabs inward in order to release
the transmission range selector lev ...
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