LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Mechanical - 4.3L (LV1)) >> Repair Instructions >> Camshaft Position Actuator Cleaning and Inspection

Camshaft Position Actuator Cleaning and Inspection

WARNING: This page is about a different variant/trim than selected.
  1. GM3648888Courtesy of GENERAL MOTORS COMPANY

    Insert a tie strap (1) through the center of the camshaft position (CMP) actuator and over the reluctor wheel.

  2. GM3648892Courtesy of GENERAL MOTORS COMPANY

    Clean the CMP actuator with cleaning solvent.

  3. Dry the components with compressed air.
  4. Inspect the CMP actuator for a broken spring (1).
  5. GM3346765Courtesy of GENERAL MOTORS COMPANY

    Inspect the CMP actuator for the following conditions:

    • Improper positioning of the CMP reluctor wheel. The actuator return spring should reposition the reluctor wheel to the PARK position. Inspect for proper alignment of the mark on the face of the sprocket (1) with the flat edge of the reluctor wheel (2). If the reluctor wheel is not properly positioned, the internal components of the actuator are sticking or the return spring is broken and the actuator should be replaced as an assembly.
    • Nicked or damaged edges (3) on the CMP reluctor wheel
    • Damaged timing sprocket teeth (4)
  6. GM1658215Courtesy of GENERAL MOTORS COMPANY

    Inspect the CMP actuator for dirt, debris, or restrictions within the oil passages (1, 2, 3).

  7. GM1658210Courtesy of GENERAL MOTORS COMPANY

    Inspect the timing chain tensioner for the following conditions:

    • Damaged or broken tension spring (1)
    • Excessive wear or scoring on the chain guide surfaces (2, 3)