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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1352 (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 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
    CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.
  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 Replacement in Engine Electrical.
  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. Fig 1: Engine Top Dead Center
    GM234138Courtesy of GENERAL MOTORS CORP.
  8. Set the number 1 piston to the top dead center (TDC) position.
  9. Align the camshaft timing sprockets.
  10. Disconnect the power steering oil pressure switch connector.
  11. Raise the vehicle. Support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  12. Remove the right engine splash shield. Refer to Splash Shield Replacement - Engine - Right in Body Front End.
    13. Fig 2: Power Steering Pump Nuts And Bolts
    GM236875Courtesy of GENERAL MOTORS CORP.
  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.

    15. Fig 3: Pinion Flange Holder
    GM234153Courtesy 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.
    17. Fig 4: Lower Drive Belt Tensioner Bolt
    GM234378Courtesy 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
    20. Fig 5: Timing Chain Tensioner Bolts
    GM234178Courtesy of GENERAL MOTORS CORP.
  20. Remove the timing chain tensioner bolts (1, 2).
  21. Remove the timing chain tensioner.
    22. Fig 6: Timing Chain Cover Bolts And Nuts
    GM234375Courtesy 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.
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