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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1112 (Engine Mechanical - 3.6L (2 Of 6)) >> On-Vehicle Repair Instructions (1 Of 2) >> Camshaft Replacement - Left Side >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Locating Left Secondary Camshaft Drive Chain Timing Marks
    GM1306391Courtesy of GENERAL MOTORS CORP.
    IMPORTANT:
    • Ensure that the marks on the camshaft position actuator and the timing chain (1-4) are aligned.
    • DO NOT tighten the camshaft position actuator bolt at this time.
  1. Locate the camshafts to the cylinder head and assemble the camshaft actuators to the camshafts.
  2. Install the camshafts and the camshaft bearing caps. Refer to Camshaft Installation - Left Side (LY7) or Camshaft Installation - Left Side (LLT) .
  3. Remove the EN-48313  . See Special Tools .
    4. 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.
  4. Install and tighten the camshaft position actuators. Refer to Camshaft Position Actuator Installation - Left Side Intake (Fourth Design) and Camshaft Position Actuator Installation - Left Side Exhaust (Fourth Design) .
  5. Install the intake camshaft position actuator solenoid. Refer to Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 2 (Left Side) Intake (LY7) .
  6. Install the camshaft sensors. Refer to Camshaft Position Sensor Replacement - Bank 2 (Left Side) Exhaust (LY7) and Camshaft Position Sensor Replacement - Bank 2 (Left Side) Intake (LY7) .
  7. Install the camshaft cover. Refer to Camshaft Cover Replacement - Left Side (LY7)  or Camshaft Cover Replacement - Left Side (LLT) .
  8. Install the upper intake manifold with the lower intake manifold. Refer to Lower Intake Manifold Replacement (LY7) .
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