Chevrolet Sonic manuals

Chevrolet Sonic Repair Manual: Camshaft Replacement

Special Tools

EN-422 Installer

For equivalent regional tools, refer to Special Tools.

Removal Procedure


    Note:

    Take extreme care to prevent any scratches, nicks or damage to the camshafts and caps bearing surfaces.

  1. Remove the timing belt rear cover (1). Refer to Timing Belt Rear Cover Replacement.


  2. Remove the camshaft position solenoid valve housing bolts (1) and housing (2).

  3. Remove the camshaft cap bolts in sequence (1, 4, 2, 3).
  4. Remove the camshaft caps.

  5. Note:

    Mark the camshafts upon removal to ensure installation is in the correct position.

  6. Remove the exhaust camshaft (1) and intake camshaft (3) as necessary.
  7. Note:

    The camshaft seal MUST be replaced whenever the camshaft is removed.

  8. Remove exhaust camshaft seal (2) and intake camshaft seal (4) as necessary.
Installation Procedure
  1. Coat and lubricate the camshaft bearing and cam surfaces with clean engine oil.

  2. Note:

    It is essential to ensure that no sealant is applied outside the marked sealing areas.

  3. Apply sealant to the surface (1) of the 1st camshaft bearing cap.

  4. Install the exhaust camshaft (1) and intake camshaft (2) on the cylinder head.

  5. Caution:

    Refer to Fastener Caution.

  6. Install the camshaft bearing caps in sequence (2, 3, 1, 4) Tighten the camshaft bearing cap bolts to 8 Y (71 lb in)

    .



  7. Install the camshaft position solenoid valve housing (2) and camshaft position solenoid valve housing bolts (1). Tighten the bolts to 8 Y (71 lb in)

    .

  8. Install the new camshaft oil seal rings using EN-422 installer .


  9. Install the timing belt rear cover (1) and tighten the bolts (2) to 6 Y (53 lb in)

    . Refer to Timing Belt Rear Cover Replacement.

Camshaft Removal
Note: Note removal sequence 1?E. Remove the 4 camshaft bearing cap bolts. Note: Release the bearing support by striking it gently with a plastic hammer. ...

Exhaust Camshaft Installation
Note: Mind the markings on the camshaft bearing caps. Camshaft bearing caps should be installed in their original position. Lubricate camshaft and camshaft bearing caps with eng ...

Other materials:

Charging System Light
This light will come on briefly when the ignition is turned on, and the engine is not running, as a check to show it is working. It should go out when the engine is started. If it stays on, or comes on while driving, there may be a problem with the electrical charging system. Have it checked ...

Roof Front Header Panel Replacement
Removal Procedure Warning: Refer to Approved Equipment for Collision Repair Warning. Note: The roof front header panel is made of Ultra High Strength Steel and should be replaced only at factory joints. Repairing or sectioning of this part is not recomme ...

Engine Oil Cooler Replacement
Removal Procedure Disconnect battery negative cable. Refer to Battery Negative Cable Disconnection and Connection. Drain engine coolant. Refer to Cooling System Draining and Filling Remove the turbocharger oil feed pipe. Refer to Turbocharger Oil Feed Pipe Replacement ...

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