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Home >> Buick >> 2007 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 28 (Engine Mechanical - 3.6L (2 Of 5)) >> On-Vehicle Repair Information (1 Of 2) >> Camshaft Position Actuator Replacement - Bank 1 (Right Side) Exhaust (First Design) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the upper intake manifold with the lower intake manifold. Refer to Lower Intake Manifold Replacement .
  2. Remove the camshaft cover. Refer to Camshaft Cover Replacement - Right Side .
  3. Remove the camshaft sensors. Refer to Camshaft Position Sensor Replacement - Bank 1 (Right Side) Exhaust and Camshaft Position Sensor Replacement - Bank 1 (Right Side) Intake .
  4. Remove the intake camshaft position actuator solenoid. Refer to Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 1 (Right Side) Intake .
    5. Fig 1: Identifying Camshaft Neutral (Low Tension) Position
    GM1306310Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Rotate the crankshaft balancer in a clockwise rotation ONLY.
  5. Rotate the crankshaft using the crankshaft balancer bolt until the camshafts are in a neutral (low tension) position. The camshaft flats will be parallel with the camshaft cover rail (1).
    6. Fig 2: Preventing Camshaft/Engine Rotation Using Open-End Wrench
    GM1340931Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Torque Reaction Against Timing Drive Chain Notice .
    IMPORTANT:
    • Use an open-end wrench at the camshaft hex to prevent camshaft/engine rotation.
    • DO NOT remove the camshaft position actuator bolt at this time.
  6. Loosen the camshaft position actuator bolt.
    7. IMPORTANT: Ensure that the tips of the EN 46108  are fully engaged into the timing chain (3 and 4). See Special Tools .
    Fig 3: Identifying EN 46108 & Timing Chain
    GM1341287Courtesy of GENERAL MOTORS CORP.
  7. Install the EN 46108  (1 and 2) in order to retain the timing chain. See Special Tools .

    Firmly tighten the EN 46108  nuts. See Special Tools .

    8. Fig 4: Identifying Timing Chain Marks & Their Respective Locations On Gears, Sprockets & Actuators
    GM1306457Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Ensure that the camshaft timing chain and the camshaft position actuators are marked for proper assembly.
  8. Mark the timing chain and the respective locations on camshaft position actuators (15-18).
  9. Remove the right exhaust camshaft position actuator bolt.
  10. Remove the right exhaust camshaft actuator.
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