2009 Lexus GS 450hFACTORY OEM SERVICE PROCEDURE

Camshaft Timing Oil Control Valve Assembly: Removal: Removal

  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    WARNING:

    Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.

  2. REMOVE COOL AIR INTAKE DUCT SEAL  See step  5
  3. REMOVE ENGINE ROOM SIDE COVER LH  See step  6
  4. REMOVE ENGINE ROOM SIDE COVER RH  See step  7
  5. REMOVE V-BANK COVER  See step  8
  6. REMOVE FRONT UPPER FENDER PROTECTOR LH  . Refer to REMOVAL - Step 4
  7. REMOVE FRONT UPPER FENDER PROTECTOR RH  . Refer to REMOVAL - Step 5
  8. REMOVE FRONT FENDER TO COWL SIDE SEAL LH  . Refer to REMOVAL - Step 8
  9. REMOVE FRONT FENDER TO COWL SIDE SEAL RH  . Refer to REMOVAL - Step 9
  10. REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY LH  . Refer to REMOVAL - Step 6
  11. REMOVE FRONT WIPER ARM AND BLADE ASSEMBLY RH  . Refer to REMOVAL - Step 7
  12. REMOVE COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY  . Refer to REMOVAL - Step 10
  13. DRAIN ENGINE COOLANT  . Refer to REPLACEMENT - Step 5
  14. REMOVE NO. 2 VENTILATION HOSE  See step  7
  15. REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE  See step  8
  16. REMOVE THROTTLE BODY  See step  9
  17. REMOVE INTAKE AIR SURGE TANK  . Refer to REMOVAL - Step 20
  18. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE (for Exhaust Side of Bank 1) 
    Fig 1: Identifying Camshaft Timing Oil Control Valve (For Bank 1 Exhaust Side)
    GTY104805Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the oil control valve connector.
    2. Remove the bolt and oil control valve.
    3. Remove the O-ring from the oil control valve.
  19. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE (for Intake Side of Bank 1) 
    1. Remove the bolt and V-bank cover bracket.
      Fig 2: Locating V-Bank Cover Bracket Bolt
      GTY135500Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the oil control valve connector.
      Fig 3: Identifying Camshaft Timing Oil Control Valve (For Bank 1 Intake Side)
      GTY104806Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the bolt and oil control valve.
    4. Remove the O-ring from the oil control valve.
  20. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE (for Intake Side of Bank 2) 
    1. Disconnect the oil control valve connector.
      Fig 4: Identifying Camshaft Timing Oil Control Valve Connector
      GTY104807Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the bolt and oil control valve.
    3. Remove the O-ring from the oil control valve.
  21. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE (for Exhaust Side of Bank 2) 
    1. Disconnect the wiring harness from the bracket.
      Fig 5: Identifying Bracket
      GTY102239Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the bolt and bracket.
    3. Disconnect the oil control valve connector.
      Fig 6: Identifying Camshaft Timing Oil Control Valve Connector
      GTY103450Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Remove the bolt and oil control valve.
    5. Remove the O-ring from the oil control valve.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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