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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 418 (Engine Mechanical - 4.2L 6-Cylinder (On-Vehicle)) >> Repair Instructions >> Camshaft Position Exhaust Actuator Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
GM1530242Courtesy of GENERAL MOTORS CORP.
  1. Install the exhaust camshaft actuator into the timing chain.
  2. Align the marked link of the timing chain with the timing mark on the exhaust camshaft position actuator sprocket (1).
    GM2740680Courtesy of GENERAL MOTORS CORP.
  3. Once the timing is set, ensure there are 15 links between the exhaust timing mark (1) and the intake timing mark (2).
    IMPORTANT: Ensure the alignment pin is engaged between the camshaft and the exhaust camshaft position actuator.
  4. Install the exhaust camshaft actuator onto the exhaust camshaft.
    CAUTION: The camshaft actuator must be fully advanced during installation. Engine damage may occur if the camshaft actuator is not fully advanced.
    CAUTION: Refer to. COMPONENT FASTENER TIGHTENING NOTICE .
    IMPORTANT: Ensure the camshaft actuator is rotated clockwise relative to the camshaft prior to tightening the bolt. Do not force the camshaft actuator to rotate clockwise. If it does not move easily, it is already fully advanced. New camshaft actuators are already packaged in the fully advanced (clockwise) position.
  5. Install the exhaust camshaft actuator bolt.

    Tighten 

    • Tighten the exhaust camshaft actuator bolt the first pass to 25 N.m (18 lb ft).
    • Use the J 36660-A  to tighten the exhaust camshaft actuator bolt the final pass an additional 135 degrees.
  6. Remove the J-44217  .
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