Chevrolet Sonic Repair Manual: Tread Wear Indicators Description
The original equipment tires have tread wear indicators that show when you should replace the tires.
The location of these indicators are at 60 degree intervals around the outer diameter of the tire. The indicators appear as a 6 mm (0.25 in) wide band when the tire tread depth becomes 1.6 mm (2/32 in).
Tires and Wheels Description and Operation
There are two types of tire and wheel balancing: static and dynamic.
Static balance is the equal distribution of weight around the wheel. Assemblies
that are statically unbalanced cause a bouncing ...
Valve Stem Oil Seal and Valve Spring Replacement
Special Tools
207649 Rod Hairpin Clips
547324 Flange Screws
EN-840 Pliers / Remover
EN-958 Installer
EN-45059 Angle Meter
EN-50717 Kit
J-43649–2 Rods
For equivalent regional ...
Other materials:
Front Fog Lamp Bulb Replacement
Front Fog Lamp Bulb Replacement
Callout
Component Name
Preliminary Procedure
Remove either the left front or right front wheelhouse liner. Refer
to Front Wheelhouse Liner Replacement.
Disconnect the electrical connector t ...
Electronic Ignition System Description
Electronic Ignition System Operation
The electronic ignition system produces and controls the high energy secondary
spark. This spark ignites the compressed air/fuel mixture at precisely the correct
time, providing optimal performance, fuel economy, and control of exhaust emissions.
...
Engine Front Cover and Oil Pump Assemble
Oil Pump Installation
Note: The oil pump slide spring and pin, as well as the slide
seal and slide seal spring can be ordered as single parts. All other
oil pump components can only be ordered as a replacement kit.
Install the oil pump components in the fo ...
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