Cylinder Head Removal

Cylinder Head Removal

NOTE:
^ Use fender covers to avoid damaging painted surfaces.
^ To avoid damage, unplug the wiring connectors carefully while holding the connector portion.
^ 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 wiring and hoses to avoid misconnection. Also, be sure that they do not contact other wiring or hoses, or interfere with other parts.

1. Make sure you have the anti-theft codes for the radio and the navigation system, then write down the customer's audio presets. Make sure the ignition switch is OFF.
2. Relieve the fuel pressure.
3. Disconnect the negative cable from the battery.
4. Drain the engine coolant.
5. Remove the air cleaner.
6. Remove the drive belt.
7. Remove the timing belt.





8. Remove the power steering (P/S) pump (A), and P/S hose clamp (B).
9. Remove the alternator.
10. Remove the intake manifold.
11. Remove the six ignition coils.
12. Remove the engine wire harness connectors and wire harness clamps from the cylinder head.
^ Six injector connectors
^ Engine coolant temperature (ECT) sensor 1 connector
^ Engine coolant temperature (ECT) sensor 2 connector
^ Crankshaft position (CKP) sensor connector
^ Exhaust gas recirculation (EGR) valve connector
^ Rocker arm oil control solenoid connector
^ Rocker arm oil pressure switch connector
^ Oil pressure switch connector
^ Two air fuel ratio (A/F) sensor connectors
^ Two secondary heated oxygen sensor (secondary H02S) connectors

13. Remove the front warm up three way catalytic converter (front WU-TWC) and rear warm up three way catalytic converter (rear WU-TWC).





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





15. Remove the two nuts securing the purge joint.





16. Remove the upper radiator hose (A) and lower radiator hose (B).





17. Remove the heater hoses (A) and water bypass hose (B).





18. Remove the two bolts (A) securing the harness holder.
19. Remove the two bolts (B) securing the vacuum line.
20. Remove the harness clamp (C).





21. Remove the connector bracket from the front cylinder head.





22. Remove the engine mount control solenoid valve bracket from the rear cylinder head.
23. Remove the fuel rails.





24. Remove the ground cable (A), then remove the water passage (B) and connecting pipe (C).





25. Remove the front and rear camshaft pulleys (A) and front and rear back covers (B).
26. Remove the cylinder head covers.





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