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:
Immobilizer Description and Operation
The immobilizer system functions are provided by the body control module (BCM)
and the engine control module (ECM), as well as any modules which store and report
the environment identifier.
When an ignition key is inserted into the ignition lock cylinder and the ignition
is switched ON, the ...
Piston and Connecting Rod Assemble
Special Tools
EN-49941 Remover / Installer Piston Retainer Ring
For equivalent regional tools, refer to Special Tools.
Note: Lubricate the piston pin with clean engine oil.
Install the connecting rod (3) and the piston pin (2) to the piston (1).
Install t ...
Starter Installation
Install the starter (4).
Install the lower starter bolt stud (3) and if equipped the washer.
Install the upper starter bolt (2) and if equipped the washer (1).
Caution: Refer to Fastener Caution.
Tighten the starter bolt and starter bolt stud to 25 ...
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