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Home >> Chevrolet >> 2017 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Mechanical - 1.8L (LKN)) >> Repair Instructions - On Vehicle >> Camshaft Position Actuator Adjuster Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Remove the camshaft cover. Refer to Camshaft Cover Replacement 
  2. Front Wheelhouse Liner - Right Side - Remove Front Wheelhouse Liner Replacement
  3. Adjust the engine to cylinder 1 top dead center (TDC) of combustion stroke. Set crankshaft in direction of engine rotation until the markings (2, 3) line up. Rotate at the crankshaft balancer absorber bolt (1).
    Fig 1: Crankshaft Balancer Alignment Marks
    GM3213250Courtesy of GENERAL MOTORS COMPANY
  4. Lower the vehicle.
  5. Install the EN-51148  holding tool (1) to camshafts and to the cylinder head.
    Fig 2: Identifying Camshaft Holding Tool Bolts
    GM2968105Courtesy of GENERAL MOTORS COMPANY
    NOTE: If EN-51148  holding tool does not fit properly, rotate the crankshaft and additional 360 degrees.
    1. Tighten the bolt (3) in the middle.
    2. Tighten the 2 outer bolts (2, 4).
  6. Remove the engine mount bracket. Refer to Engine Mount Bracket Replacement 
  7. Remove the upper engine front cover. Refer to Engine Front Cover Replacement - Upper 
  8. Remove the upper timing chain guide bolts (2).
    Fig 3: Upper Timing Chain Guide
    GM2969141Courtesy of GENERAL MOTORS COMPANY
  9. Remove the upper timing chain guide (1).
  10. Mark the camshaft timing chain with a suitable permanent marker or paint stick in line to the camshaft position actuator adjuster marks (1, 2).
    Fig 4: Camshaft Position Actuator Adjuster Marks
    GM3216240Courtesy of GENERAL MOTORS COMPANY
  11. Push the timing chain guide - left side (2) in arrow direction.
    Fig 5: Timing Chain Guide And Tensioner
    GM2968108Courtesy of GENERAL MOTORS COMPANY
  12. Fix the tensioner (1) with a 2 mm drill bit or equivalent (3).
  13. Remove the 2 timing chain tensioner bolts (2).
    Fig 6: Timing Chain Tensioner
    GM2968109Courtesy of GENERAL MOTORS COMPANY
  14. Remove the timing chain tensioner (1).
  15. Remove the camshaft timing chain (2) from the camshaft position actuator adjuster.
    Fig 7: Camshaft Timing Chain And Timing Chain Guides
    GM3216234Courtesy of GENERAL MOTORS COMPANY
  16. Lay the camshaft timing chain (2) between the timing chain guides (1, 3).
  17. Remove the camshaft position actuator adjuster bolt (3).
    Fig 8: Intake Camshaft Position Actuator
    GM2968115Courtesy of GENERAL MOTORS COMPANY
  18. Remove the intake camshaft position actuator (1).
  19. Remove the camshaft position actuator adjuster bolt (3).
    Fig 9: Exhaust Camshaft Position Actuator
    GM2968114Courtesy of GENERAL MOTORS COMPANY
  20. Remove the exhaust camshaft position actuator (2).
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