Chevrolet Sonic manuals

Chevrolet Sonic Repair Manual: Engine Block Disassemble


    Remove the cylinder head locating (1, 2).
  1. Remove the cylinder head locating (1, 2).

  2. Remove the oil pressure switch (1).

  3. Remove the knock sensor bolt (2) and the knock sensor (1).
  4. Clean the thread.

  5. Remove the oil flow check valve (1).

  6. Remove the oil pressure relief valve closure bolt (1) and the oil pressure relief valve.

  7. Remove the piston (1) and spring (2) from the oil pressure relief valve closure bolt (3).
  8. Clean and inspect the components. Refer to Engine Block Cleaning and Inspection.
  9. Clean the thread.

  10. Remove the 4 piston oil nozzles (1).
Engine Block Assemble
Install the 4 piston oil nozzles (1). Caution: Refer to Fastener Caution. Install the 4 piston oil nozzle bolts (2) and tighten to  25 Y ...

Engine Block Cleaning and Inspection
Special Tools EN-8087 Cylinder Gauge For equivalent regional tools, refer to Special Tools. Clean the sealing material from the gasket mating surfaces (2). Clean the engine blo ...

Other materials:

Indicator/Warning Message Description and Operation
Indicator LIGHT ON Refer to the owner's manual for the descriptions and explanations of all indicator lights. For diagnosis and repair information related to an indicator light, refer to the System Diagnosis and the Description of Operation that the message relates to. ...

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 ...

Engine Front Cover and Oil Pump Cleaning and Inspection
Engine Front Cover Cleaning Procedure Clean the engine front cover sealing surface. Warning: Wear safety glasses when using compressed air in order to prevent eye injury. Caution: To ensure proper engine lubrication, clean clogged or contaminated oil g ...

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