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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1290 (Engine Mechanical - 1.8L (LV6)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Timing Chain Housing Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Refer to BATTERY DISCONNECT CAUTION .
  1. Disconnect the negative battery cable.
  2. Drain the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM in Engine Cooling.
  3. Remove the accessory drive belt. Refer to DRIVE BELT REPLACEMENT  .
  4. Remove the generator from the engine.

    Refer to GENERATOR .

  5. Install the engine support fixture. Refer to ENGINE SUPPORT FIXTURE  .
  6. Remove the engine mount. Refer to ENGINE MOUNT REPLACEMENT 
  7. Remove the cylinder head cover. Refer to CYLINDER HEAD COVER REPLACEMENT  .
  8. Set the number 1 piston to the top dead center (TDC) position.
  9. Align the camshaft timing sprockets.
    Fig 1: Aligning Camshaft Timing Sprockets
    G01546758Courtesy of GENERAL MOTORS CORP.
  10. Disconnect the power steering oil pressure switch connector.
  11. Raise the vehicle. Support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE .
  12. Remove the right engine splash shield. Refer to SPLASH SHIELD REPLACEMENT - ENGINE - RIGHT in Body Front End.
  13. Remove the 2 power steering pump through bolts and the nuts (1).
  14. Remove the power steering pump from the mounting surface.

    Move the pump to the side.

    Fig 2: Removing Power Steering Pump
    G01546759Courtesy of GENERAL MOTORS CORP.
  15. Remove the accessory drive belt. Refer to DRIVE BELT REPLACEMENT  .
  16. Remove the crankshaft pulley retaining bolt using J 8614-01  to prevent crankshaft rotation when loosening the bolt.
    Fig 3: Removing Crankshaft Pulley Retaining Bolt
    G01546760Courtesy of GENERAL MOTORS CORP.
  17. Remove the following components:
    • The crankshaft position sensor bolt (5)
    • The sensor
  18. Lower the vehicle.
  19. Remove the following components from the mounting surface:
    • The drive belt tensioner bolt
    • The drive belt tensioner nut
    • The drive belt tensioner
      Fig 4: Removing Drive Belt Tensioner
      G01546761Courtesy of GENERAL MOTORS CORP.
  20. Remove the timing chain tensioner bolts (1, 2).
  21. Remove the timing chain tensioner.
    Fig 5: Removing Timing Chain Tensioner
    G01546762Courtesy of GENERAL MOTORS CORP.
  22. Remove the following fasteners:
    • The timing chain cover bolts (1-14)
    • The timing chain cover nuts (15)
  23. Remove the timing chain cover.
    Fig 6: Removing Timing Chain Cover
    G01546763Courtesy of GENERAL MOTORS CORP.
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