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Chevrolet Sonic Repair Manual: Camshaft Replacement

Chevrolet Sonic Repair Manual / Powertrain / Engine / Valvetrain / Camshaft / 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.

  5. Remove the exhaust camshaft (1) and intake camshaft (3) as necessary.

    6. Note:

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

  6. 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.

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

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

    4. Caution:

    Refer to Fastener Caution.

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

    .



  5. 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)

    .

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


  7. 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:

Safety System Check
Now and then, check that the safety belt reminder light, safety belts, buckles, latch plates, retractors, and anchorages are all working properly. Look for any other loose or damaged safety belt system parts that might keep a safety belt system from doing its job. See your dealer to have it re ...

Menu System
Controls The Push/MENU/TUNE knob, Push/ MENU/TUNE button, and / BACK button are used to navigate the menu system. Push/MENU/TUNE Knob: Turn to: Enter the menu system. Highlight a menu option. Select a value. Push/MENU/TUNE Button: Press to: Select or activate the highlighted men ...

Tires and Wheels Description and Operation (Tire Identification)
Identification Accessory and warranty replacement must use TPC spec tires. An outboard orientation stripe is added to the tread surface, with an offset toward the outboard tire face. All GM approved tires (Production, Service and Accessory) have a TPC (Tire Performance C ...

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