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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1443 (Engine Mechanical - 4.2L (Ll8)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Camshaft Position Actuator Replacement - Exhaust >> Removal Procedure

Removal Procedure

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  1. Remove the camshaft cover. Refer to Camshaft Cover Replacement  .
  2. Rotate the engine until the word Delphi on the exhaust camshaft position actuator is lined up parallel with the cylinder head to cam cover mating surface.
    3. Fig 1: View Of top Chain Guide
    GM637766Courtesy of GENERAL MOTORS CORP.
  3. Remove the top chain guide bolts.
  4. Remove the top chain guide.
  5. Using the timing mark on the exhaust camshaft position actuator sprocket as a reference, make a mark on the timing chain link across from it.
    6. Fig 2: Identifying 44217 & EN-44217-45
    GM812952Courtesy of GENERAL MOTORS CORP.
  6. Install the J 44217  Timing Chain Retention Tool (1). See Special Tools and Equipment .
    1. Install the hook portion of the timing chain retention tools into one of the timing chain links near the timing chain shoe on both sides of the engine.
    2. Tighten the wingnuts.
    3. Ensure the hooks are still in one of the links and the gage blocks of the tool are firmly in place on the edge of the head.
    7. Fig 3: View Of Exhaust Camshaft Position Actuator
    GM637783Courtesy of GENERAL MOTORS CORP.
  7. Remove the exhaust camshaft position actuator bolt.
  8. Remove the exhaust camshaft position actuator.
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