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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 Function Override
If the battery on the vehicle has been recharged or disconnected, or is not working, the windows will need to be reprogrammed for the express-up feature to work. Before reprogramming, replace or recharge the vehicle's battery. To program the driver window: 1. With the ignition in ACC/ ACCE ...

Brake Pressure Modulator Valve Bracket Replacement
Removal Procedure Remove the brake pressure modulator valve (BPMV) and bracket assembly. Refer to Brake Pressure Modulator Valve Replacement. Remove the BPMV bolts (1). Remove the BPMV bracket. Installation Procedure Install the BPMV br ...

Tire Pressure Monitor Operation
This vehicle may have a Tire Pressure Monitor System (TPMS). The TPMS is designed to warn the driver when a low tire pressure condition exists. TPMS sensors are mounted onto each tire and wheel assembly, excluding the spare tire and wheel assembly. The TPMS sensors monitor the air pressure in ...

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