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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 406 (Engine Mechanical - 3.5L (On-Vehicle)) >> Repair Instructions >> Secondary Camshaft Timing Sprocket Replacement - Right Intake >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the primary camshaft drive chain tensioner. Refer to Primary Camshaft Drive Chain Tensioner Replacement .
  2. Remove the camshaft position sensor. Refer to CRANKSHAFT POSITION SENSOR in Engine Controls - 3.5L.
  3. Compress the right secondary drive chain tensioner shoes with your hand.
  4. Lock the right secondary drive chain tensioner by inserting a piece of wire (2) into the access hole in the side of the tensioner (1).
    5. Fig 1: Locking Right Secondary Drive Chain Tensioner
    G01816799Courtesy of GENERAL MOTORS CORP.
  5. Slowly release the pressure from the right secondary drive chain tensioner shoes. The tensioner should remain closed.
  6. Remove the intake camshaft sprocket bolt.
  7. Remove the right intake secondary camshaft timing sprocket from the following:
    • The right intake camshaft.
    • The right secondary camshaft drive chain.
    • The primary camshaft drive chain.
    Fig 2: Removing Intake Camshaft Sprocket Bolt
    G01816800Courtesy of GENERAL MOTORS CORP.
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