Chevrolet Sonic Repair Manual: 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 connecting rod have been disassembled, replace the components as an assembly.
- Many internal engine components will develop specific wear patterns on their friction surfaces.
- When disassembling the engine, internal components MUST be separated, marked, or organized in a way to ensure installation to their original location and position.
Separate, mark, or organize the following components:
- Piston and the piston pin
- Piston to the specific cylinder bore
- Piston rings to the piston
- Connecting rod to the crankshaft journal
- Connecting rod to the bearing cap—A paint stick or etching/engraving type tool are recommended. Stamping the connecting rod or cap near the bearing bore may affect component geometry.
- Crankshaft main and connecting rod bearings
- Camshaft and valve tappets
- Valve to the valve guide
- Valve spring and shim to the cylinder head location
- Engine block main bearing cap location and direction
- Oil pump drive and driven gears
Replacing Engine Gaskets
Gasket Reuse and Applying Sealants
Do not reuse any gasket unless specified.
Gaskets that can be reused will be identified in the service procedure.
Do not apply sealant to any ...
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 surf ...
Other materials:
Forward Collision Alert (FCA) System
For vehicles with this feature, read the following section before using it.
The Forward Collision Alert (FCA) system may help to avoid or reduce the harm
caused by front-end crashes. FCA provides a flashing red visual alert and beeps
when approaching a vehicle directly ahead too quickly. FCA al ...
Detecting the Vehicle Ahead
The green vehicle ahead indicator will appear when a vehicle is detected ahead.
Whenever this indicator does not appear, FCA will not respond. The indicator may
disappear on curves, highway exit ramps, or hills, or due to poor visibility. The
FCA system will not detect another vehicle ahead ...
Power Steering Control Module Programming and Setup
The following service procedures require either a programming or a setup event
performed for a complete repair.
Power Steering Control Module Replacement
If the steering column power steering control module needs to be is replaced,
the power steering control module needs to be progra ...
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