Cylinder Head Removal

Cylinder Head Removal

NOTE:

- Use fender covers to avoid damaging painted surfaces.
- To avoid damaging the wires and terminals, unplug the wiring connectors carefully while holding the connector portion.
- Connect the HDS to the DLC, and monitor ECT SENSOR 1. To avoid damaging the cylinder head, wait until the engine coolant temperature drops below 100 °F (38 °C) before loosening the cylinder head bolts.
- Mark all wirings and hoses to avoid misconnection. Also, be sure that they do not contact any other wirings or hoses, or interfere with any other parts.

1. Relieve the fuel pressure Service and Repair.

2. Do the battery terminal disconnection procedure.

3. Drain the engine coolant Service and Repair.

4. Remove the six ignition coils.

5. Remove the alternator.

6. Remove the power steering pump (A) and the power steering hose bracket (B) with its hose connected.





7. Remove the intake manifold.

8. Disconnect the following engine wire harness connectors, and remove the wire harness clamps from the cylinder head:

- Six injector connectors
- Knock sensor connector
- ECT sensor 1 connector
- EGR valve connector
- Rocker arm oil pressure sensor connector
- Rocker arm oil control solenoid A (Bank 1) connector
- Rocker arm oil control solenoid A (Bank 2) connector
- Rocker arm oil control solenoid B (Bank 1) connector
- Front rocker arm oil pressure switch connector
- Rear rocker arm oil pressure switch connector
- CMP sensor connector
- Two A/F sensor connectors
- Two secondary HO2S connectors

9. Remove the front warm up TWC and the rear warm up TWC.

10. Remove the quick-connect fitting cover (A), then disconnect the fuel feed hose (B):

- 2WD Fuel Line/Quick-Connect Fitting Removal
- 4WD Fuel Line/Quick-Connect Fitting Removal





11. Remove the EVAP canister purge joint (A) with the bracket.






12. Remove the connector bracket (A) from the front cylinder head.






13. Remove the harness bracket (A) from the rear cylinder head.





14. Remove the injector base.

15. Remove the water passage Water Passage Replacement.

16. Remove the timing belt.

17. Remove the camshaft pulleys (A) and the back covers (B).

FRONT





REAR





18. Remove the cylinder head covers Cylinder Head Cover Removal.

19. Remove the cylinder head bolts. To prevent warpage, loosen the bolts in sequence 1/3 turn at a time; repeat the sequence until all bolts are loosened.

FRONT





REAR





20. Remove the cylinder heads.