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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 589 (Engine Mechanical - 2.2L) >> Removal And Installation >> Unit Repair Disassembly >> Timing Chain, Sprockets, And TENSIONER (Unit Repair) Removal >> Removal

Timing Chain, Sprockets, And TENSIONER (Unit Repair) Removal: Removal

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT:  The timing chain tensioner must be removed to unload chain tension before the timing chain is removed. If it is not, the timing chain will become misaligned and it will be difficult to remove.

  1. Remove upper timing chain guide.
  2. Remove timing chain tensioner plunger.
    Fig 1: Removing Upper Timing Chain Guide
    G01039505Courtesy of GENERAL MOTORS CORP.
  3. Remove exhaust cam bolt and exhaust cam sprocket. Discard bolt.
    Fig 2: Removing Exhaust Cam Bolt And Exhaust Cam Sprocket
    G01039506Courtesy of GENERAL MOTORS CORP.
  4. Remove adjustable timing chain guide.
    Fig 3: Removing Adjustable Timing Chain Guide
    G01039507Courtesy of GENERAL MOTORS CORP.
  5. Remove plug to gain access to fixed timing chain guide bolt.
    Fig 4: Removing Plug
    G01039508Courtesy of GENERAL MOTORS CORP.
  6. Remove fixed timing chain guide.
    Fig 5: Removing Fixed Timing Chain Guide
    G01039509Courtesy of GENERAL MOTORS CORP.
  7. Locate hex on the intake camshaft and hold with an appropriate size wrench.
  8. Remove intake cam sprocket bolt, the intake cam sprocket and the timing chain through the top of the cylinder head. Discard bolt.
    Fig 6: Removing Intake Cam Sprocket Bolt, The Intake Cam Sprocket And The Timing Chain
    G01039510Courtesy of GENERAL MOTORS CORP.
  9. Remove crankshaft sprocket.
    Fig 7: Removing Crankshaft Sprocket
    G01039511Courtesy of GENERAL MOTORS CORP.
  10. Remove oil nozzle and bolt.
    Fig 8: Removing Oil Nozzle And Bolt
    G01039512Courtesy of GENERAL MOTORS CORP.