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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 257 (Engine Mechanical - 4.0L (On-Vehicle)) >> Repair Instructions >> Primary Camshaft Drive Chain Tensioner Replacement >> 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 engine front cover. Refer to Engine Front Cover Replacement .
  2. Align the primary timing marks (1) using the J 39946. 
    Fig 1: Identifying Primary Timing Marks
    G01819415Courtesy of GENERAL MOTORS CORP.
  3. Remove the 2 bolts attaching the primary camshaft drive chain tensioner to the engine block.
  4. Remove the primary camshaft drive chain tensioner, allowing the tensioner to expand as you remove it.
    Fig 2: Removing Primary Camshaft Drive Chain Tensioner
    G01819416Courtesy of GENERAL MOTORS CORP.
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