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Home >> GMC >> 2016 >> Terrain SL, Gas >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Engine Mechanical - 3.6L (LFX) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Camshaft Position Actuator Replacement - Bank 1 >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Camshaft And Pry Bar
    GM2384940Courtesy of GENERAL MOTORS COMPANY
  1. It may help to carefully pry the camshaft forward and to move the EN49982-1  retainer backward via the slot to reengage the position actuator to the camshaft. The dowel pin on the camshaft position actuator must be aligned with the slot in the camshaft nose for reassembly.
    2. Fig 2: Tilting Camshaft Position Actuator Forward
    GM2384945Courtesy of GENERAL MOTORS COMPANY
  2. Install the intake camshaft position actuator first by inserting the actuator between the timing chain and front cover. Tilt the actuator in and engage the chain while aligning the marks you made on the chain and position actuator.
    3. Fig 3: Fitting Camshaft Position Actuator
    GM2384952Courtesy of GENERAL MOTORS COMPANY
  3. Ensure the camshaft position actuator fits snugly to the end of the camshaft.
    4. CAUTION:

    Refer to Fastener Caution .

  4. Install the intake camshaft position actuator retaining bolt, and lightly tighten the bolt to hold the camshaft actuator in place. DO NOT torque at this time.
  5. Install the exhaust camshaft position actuator retaining bolt, and lightly tighten the bolt to hold the camshaft actuator in place. DO NOT torque at this time.
  6. Double-check that the marks on both the intake and exhaust camshaft position actuators to ensure that they are aligned with their respective paint marks on the chain.
    7. Fig 4: Rotating Camshaft
    GM2384934Courtesy of GENERAL MOTORS COMPANY
  7. Using a 20 mm wrench on the cast hexagonal portion of the exhaust camshaft, rotate the camshaft clockwise while pulling up on the handle of the EN49982-2  retainer.
  8. Remove EN49982-2 retainer.
  9. Release the pressure on the wrench. The timing chain should now be tight and should lose the slack the wedge was providing.
    10. NOTE:

    Double-check the marks on the camshaft position actuators and chains to ensure they are correct.

  10. Torque one or both camshaft position actuator retaining bolts to 58 N.m (43 lb ft).
    11. Fig 5: Retainer Thumbscrew
    GM2384886Courtesy of GENERAL MOTORS COMPANY
  11. Unscrew the wingnut on EN49982-1  retainer to release timing chain, and then remove EN49982-1  retainer from the front cover by unscrewing the thumbscrew (2).
    12. Fig 6: Camshaft Front Cap Bolts
    GM2384954Courtesy of GENERAL MOTORS COMPANY
  12. Install camshaft front cap and bolts (1).
  13. Tighten the camshaft front cap outer bolts to 10 N.m (89 lb in).
  14. Tighten the camshaft front cap inner bolts to 10 N.m (89 lb in).
  15. Install the camshaft position actuator solenoid valve solenoid - exhaust. Refer to Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 1 (Right Side) Exhaust .
  16. Install the camshaft position actuator solenoid valve solenoid-intake. Refer to Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 1 (Right Side) Intake .
  17. Install the intake camshaft position sensors. Refer to Camshaft Position Sensor Replacement - Bank 1 (Right Side) Intake .
  18. Install the exhaust camshaft position sensor. Refer to Camshaft Position Sensor Replacement - Bank 1 (Right Side) Exhaust .
  19. Install the camshaft cover. Refer to Camshaft Cover Replacement - Right Side .
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