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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 277 (Engine Mechanical - 3.5L (On-Vehicle)) >> Repair Instructions >> Secondary Camshaft Timing Sprocket Replacement - Left 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. Compress the left secondary drive chain tensioner shoes with your hand.
  3. Lock the left secondary drive chain tensioner by inserting a piece of wire (2) into the access hole in the side of the tensioner (1).
  4. Slowly release the pressure from the left secondary drive chain tensioner shoes. The tensioner should remain closed.
    Fig 1: Locking Left Secondary Drive Chain Tensioner
    G01816786Courtesy of GENERAL MOTORS CORP.
  5. Remove the intake camshaft sprocket bolt.
  6. Remove the left intake secondary camshaft timing sprocket from the following:
    • The left intake camshaft.
    • The left secondary camshaft drive chain.
    • The primary camshaft drive chain.
    Fig 2: Removing Intake Camshaft Sprocket Bolt
    G01816787Courtesy of GENERAL MOTORS CORP.
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