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Home >> Chevrolet >> 2004 >> Tracker 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 2.0L (Introduction) >> Repair Instructions >> Camshaft Position (CMP) Sensor Replacement >> Installation Procedure
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Installation Procedure

  1. Install a new O-ring (2) on the CMP sensor housing.
  2. Lubricate the CMP sensor O-ring with engine oil.
    3. IMPORTANT: Do not use force to install the CMP sensor housing into the cylinder head. The CMP sensor coupling has an offset drive that engages an offset slot in the end of the camshaft. Align the CMP sensor coupling and the camshaft slot before installing the CMP sensor housing into the cylinder head.
  3. Align the offset coupling (1) of the CMP sensor to correctly engage the drive slot in the end of the camshaft.
  4. Install the CMP sensor housing (3) into the cylinder head (5), while observing the offset coupling (1) on the CMP sensor for proper alignment during installation.
  5. Install the CMP sensor housing bolt, but do not tighten the bolt.
  6. Rotate the CMP sensor housing (2) until the alignment marks (4) are matched up.
    7. NOTE: Refer to Fastener Notice in Cautions and Notices.
  7. Tighten the CMP sensor housing bolt.

    Tighten:  Tighten the bolt to 15 N.m (11 lb ft).

  8. Connect the CMP sensor electrical connector (1).
  9. Install a timing light and check the ignition timing.
    10. Fig 1: View Of Offset Coupling, New O-Ring, CMP Sensor Housing, Alignment Marks & Cylinder Head
    GM464737Courtesy of GENERAL MOTORS CORP.
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