Camshaft Timing Oil Control Valve Assembly Removal

Engine. Lexus Gs430, Gs300. Uzs190 Grs190
3Gr-Fse Engine Control System. Lexus Gs430, Gs300. Uzs190 Grs190

  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

  2. REMOVE V-BANK COVER

  3. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE (for Bank 1 Exhaust Side)

  4. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE (for Bank 1 Intake Side)

  5. REMOVE COOL AIR INTAKE DUCT SEAL

  6. REMOVE ENGINE UNDER COVER

  7. DRAIN ENGINE COOLANT

  8. REMOVE ENGINE ROOM SIDE COVER RH

  9. REMOVE NO. 2 VENTILATION HOSE

  10. REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE

  11. DISCONNECT WATER BY-PASS HOSE

  12. DISCONNECT HEATER WATER INLET HOSE

  13. REMOVE ENGINE REAR COVER

  14. DISCONNECT UNION TO CHECK VALVE HOSE

  15. REMOVE VENTILATION HOSE

  16. REMOVE INTAKE AIR SURGE TANK

  17. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE (for Bank 2 Intake Side)

  18. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE (for Bank 2 Exhaust Side)

Camshaft Timing Oil Control Valve Assembly -- Removal



1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.


2. REMOVE V-BANK COVER


Lexus Gs430, Gs300. Uzs190 Grs190
  1. Remove the 2 nuts and V-bank cover.



3. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE (for Bank 1 Exhaust Side)


Lexus Gs430, Gs300. Uzs190 Grs190
  1. Disconnect the oil control valve connector.

  1. Remove the bolt and oil control valve.

  1. Remove the O-ring from the oil control valve.



4. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE (for Bank 1 Intake Side)


Lexus Gs430, Gs300. Uzs190 Grs190
  1. Disconnect the oil control valve connector.

  1. Remove the bolt and V-bank cover bracket.

  1. Remove the bolt and oil control valve.

  1. Remove the O-ring from the oil control valve.



5. REMOVE COOL AIR INTAKE DUCT SEAL


Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fse Engine Control System.Sfi System.Camshaft Timing Oil Control Valve Assembly  Removal
  1. Remove the 7 clips and duct seal.



6. REMOVE ENGINE UNDER COVER


Lexus Gs430, Gs300. Uzs190 Grs190
  1. Using a clip remover, remove the 3 clips.

  1. Remove the 10 screws and under cover.



7. DRAIN ENGINE COOLANT
CAUTION:
Do not remove the radiator cap while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.
  1. Remove the radiator cap and reservoir cap.



  1. Loosen the radiator drain cock plug and 2 cylinder block drain cock plugs. Then drain the coolant.

    HINT:
    Collect the coolant in a container and dispose of it according to the regulations in your area.


    Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fse Engine Control System.Sfi System.Camshaft Timing Oil Control Valve Assembly  Removal



8. REMOVE ENGINE ROOM SIDE COVER RH


Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fse Engine Control System.Sfi System.Camshaft Timing Oil Control Valve Assembly  Removal
  1. Loosen the nut and remove the 2 clips and side cover.



9. REMOVE NO. 2 VENTILATION HOSE


Lexus Gs430, Gs300. Uzs190 Grs190
  1. Disconnect the ventilation hose from the cylinder head.



10. REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Disconnect the MAF meter connector.

  1. Disconnect the clamp from the air cleaner.



    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Disconnect the VSV (for EVAP).



    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Disconnect the 4 clamps.

  1. Remove the hose clamp and air cleaner cap with air cleaner hose.



11. DISCONNECT WATER BY-PASS HOSE


Lexus Gs430, Gs300. Uzs190 Grs190
  1. Disconnect the 2 water by-pass hoses from the throttle body.



12. DISCONNECT HEATER WATER INLET HOSE


Lexus Gs430, Gs300. Uzs190 Grs190
  1. Disconnect the hose from the water hose joint.



13. REMOVE ENGINE REAR COVER


Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fse Engine Control System.Sfi System.Camshaft Timing Oil Control Valve Assembly  Removal
  1. Remove the 3 clips and engine rear cover.



14. DISCONNECT UNION TO CHECK VALVE HOSE


Lexus Gs430, Gs300. Uzs190 Grs190
  1. Disconnect the hose from the surge tank.



15. REMOVE VENTILATION HOSE


Lexus Gs430, Gs300. Uzs190 Grs190
  1. Disconnect the ventilation hose from the ventilation valve.



16. REMOVE INTAKE AIR SURGE TANK



Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fse Engine Control System.Sfi System.Camshaft Timing Oil Control Valve Assembly  Removal

  1. Disconnect the throttle motor connector.

  1. Disconnect the IACV connector.

  1. Disconnect the wire harness clamp from the surge tank.

  1. Remove the 2 bolts and intake manifold stay.

  1. Disconnect the 2 wire harness clamps from the surge tank stays.

  1. Remove the 4 bolts and 2 surge tank stays.

  1. Remove the bolt and disconnect the water hose joint.



    Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fse Engine Control System.Sfi System.Camshaft Timing Oil Control Valve Assembly  Removal
  1. Using a 5 mm hexagon socket wrench, remove the 7 bolts, 2 nuts and gasket.

    HINT:
    Cover the intake manifold port to prevent foreign matter from entering it.


17. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE (for Bank 2 Intake Side)


Lexus Gs430, Gs300. Uzs190 Grs190
  1. Disconnect the oil control valve connector.

  1. Remove the bolt and oil control valve.

  1. Remove the O-ring from the oil control valve.



18. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE (for Bank 2 Exhaust Side)


Lexus Gs430, Gs300. Uzs190 Grs190
  1. Disconnect the oil control valve connector.

  1. Remove the bolt and oil control valve.

  1. Remove the O-ring from the oil control valve.