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Home >> Acura >> 2012 >> TSX Sedan L4-2.4L >> Repair and Diagnosis >> Engine, Cooling and Exhaust >> Engine >> Cylinder Head Assembly >> Service and Repair >> Removal and Replacement >> Cylinder Head Removal

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 wiring and hoses to avoid misconnection. Also, be sure that they do not contact any other wiring or hoses, or interfere with other parts.

1. Remove the strut brace Frame Brace Replacement.

2. Relieve the fuel pressure Service and Repair.

3. Drain the engine coolant Service and Repair.

4. Remove the drive belt Service and Repair.

5. Remove the intake manifold.

6. Remove the warm up TWC Warm Up TWC Removal/Installation.

7. Remove the EVAP canister hose (A).






8. Remove the quick-connect fitting cover (A), then disconnect the fuel feed hose (B) Fuel Line/Quick-Connect Fitting Removal.






9. Disconnect the four fuel injector connectors (A) and the engine mount control solenoid valve connector (B), and remove the ground cables (C).






10. Remove the four bolts securing the EVAP canister purge valve bracket.






11. Disconnect the upper radiator hose (A), the heater hoses (B), and the water bypass hose (C).





12. A/T: Disconnect the water bypass hose (D).

13. Remove the connecting pipe mounting bolts (A) securing the connecting pipe (B).





14. Disconnect the water bypass hose (C).

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

- ECT sensor 1 connector
- CMP sensor A (Intake) connector
- CMP sensor B (Exhaust) connector
- Rocker arm oil control solenoid connector
- Rocker arm oil pressure switch connector
- EVAP canister purge valve connector
- VTC oil control solenoid valve connector
- Engine oil pressure switch connector

16. Remove the cam chain Cam Chain Removal.

17. Remove the rocker arm assembly Rocker Arm Assembly Removal.

18. 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.





19. Remove the cylinder head.

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