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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1634 (Engine Mechanical - 3.5L) >> Repair Instructions - On Vehicle >> Camshaft Timing Chain and Sprocket Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Timing Marks & Chain Tensioners
    GM1557849Courtesy of GENERAL MOTORS CORP.
  1. Remove the engine front cover. Refer to Engine Front Cover Replacement .
  2. Align the crankshaft timing mark (1) to the timing mark on the bottom of the timing chain tensioner (2).
  3. Align the timing mark on the camshaft gear (3) with the timing mark on top of the timing chain tensioner (4).
  4. Fig 2: View Of Timing Chain & Sprockets
    GM1557703Courtesy of GENERAL MOTORS CORP.
  5. Remove the camshaft sprocket bolts.
  6. Remove the timing chain, camshaft, and crankshaft sprockets.
  7. Fig 3: View Of Timing Chain Tensioner & Bolts
    GM1557708Courtesy of GENERAL MOTORS CORP.
  8. Remove the timing chain tensioner bolts.
  9. Remove the timing chain tensioner.