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Home >> Chevrolet >> 2006 >> Cobalt LTZ >> Repair and Diagnosis >> External Pages >> Different car >> Section 791 (Engine Mechanical - 2.4L) >> Repair Instructions - On Vehicle >> Camshaft Position Intake Actuator Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2008 Pontiac G5 and 2008 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Upper Timing Chain Guide Bolts And Guide
    GM1578296Courtesy of GENERAL MOTORS CORP.
  1. Remove the camshaft cover. Refer to Camshaft Cover Replacement .
  2. Remove the upper timing chain guide bolts and guide.
    3. Fig 2: Loosening/Tightening Camshaft Actuator Retainer Bolts
    GM2066456Courtesy of GENERAL MOTORS CORP.
  3. Install a 24 mm wrench onto the hex on the camshaft in order to rotate the camshafts clockwise and install the camshaft actuator retainer EN-48953  (1).
  4. Install the camshaft actuator retainer bolts.
    NOTE: Refer to Fastener Notice .

    Tighten:  Tighten the bolts to 10 N.m (89 lb in).

  5. Loosen, but DO NOT remove the intake camshaft actuator bolt.
  6. Remove the camshaft actuator locking tool, EN-48953  (1).
    7. IMPORTANT: Ensure the timing chain and the camshaft position actuators are marked for proper assembly.
  7. Mark the intake and exhaust camshaft actuators and the respective locations on the timing chain.
    8. Fig 3: Identifying Timing Chain Tensioner
    GM412158Courtesy of GENERAL MOTORS CORP.
  8. Remove the timing chain tensioner.
    9. Fig 4: View Of Timing Chain & Chain Retention Tool
    GM2066475Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The camshaft actuators should not rotate during the removal or installation.
    IMPORTANT: Ensure the tips of the are fully engaged into the timing chain. The retention tool rod can be used on the back side of the chain to ensure the teeth from the retention tool are engaged.
  9. Install the timing chain retention tool EN-48749  (1) to the intake side of the timing chain.
    10. Fig 5: Identifying Timing Chain & Camshaft Position Actuator
    GM1578297Courtesy of GENERAL MOTORS CORP.
  10. Remove and discard the intake camshaft actuator bolt (2).
  11. Rotate the exhaust camshaft clockwise slightly to take the tension off of the timing chain on the intake actuator.
  12. Remove the intake camshaft actuator (3) from the camshaft while also removing the actuator from the timing chain.
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