Chevrolet Sonic Repair Manual: Service Prior to Assembly
The importance of cleanliness during assembly cannot be overstated. Dirt or debris will cause engine damage. An automobile engine is a combination of many machined, honed, polished and lapped surfaces with minor tolerances. 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 in order to protect and lubricate the surfaces on 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.
Use the proper tools to measure the components when checking for excessive wear. Components not within the manufacturer's specification must be repaired or replaced.
Lubricate all moving parts with engine oil or a specified assembly lubricant. This will provide lubrication for initial start up.
When the components are reinstalled into an engine, return the components to their original location, position, and direction.
Separating Parts
Note:
Disassembly of the piston, press fit design piston pin, and connecting
rod may create scoring or damage to the piston pin and piston pin bore.
If the piston, pin, and connectin ...
Special Tools
Illustration
Tool Number/Description
207649
Rod Hairpins
547324
Flange Screws
...
Other materials:
Rear Seat Head Restraint Guide Replacement
Rear Seat Head Restraint Guide Replacement
Callout
Component Name
Preliminary Procedure
Remove the rear seat head restraint. Refer to Rear Seat Head Restraint
Replacement
1
Rear Seat Head Restra ...
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 action called wheel tramp. This
condition may eventually cause uneven tire wear.
...
Drive Range, First Gear (Gen 1)
As the vehicle speed increases, the transmission control module (TCM) receives
input signals from the automatic transmission input and output speed sensors, throttle
position sensor and other vehicle sensors to determine the precise moment to deenergize
or ?urn OFF?the shift solenoid, and to c ...
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