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Home >> Buick >> 2008 >> Allure CXL >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (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 variant/trim than selected.
  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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