Acura RL. Manual - part 417

Fig. 79: Installing Harness Holder And Dipstick With Torque Specifications 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

11. Install the six ignition coils (see IGNITION COIL REMOVAL/INSTALLATION ).  

12. Install the intake manifold (see INSTALLATION ).  

CYLINDER HEAD REMOVAL 

1. Make sure you have the anti-theft codes for the audio system and the navigation system (if equipped). 

Make sure the ignition switch is OFF.  

2. Relieve the fuel pressure (see FUEL PRESSURE RELIEVING ).  

3. Disconnect the negative cable from the battery.  

4. Drain the engine coolant (see COOLANT CHECK ).  

5. Remove the air cleaner (see AIR CLEANER REMOVAL/INSTALLATION ).  

6. Remove the drive belt (see DRIVE BELT REPLACEMENT ).  

7. Remove the timing belt (see TIMING BELT REMOVAL ).  

8. Remove the power steering (P/S) pump (A), and P/S hose clamp (B). 

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 CC) 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.  

 

2007 Acura RL 

2005-08 ENGINE Cylinder Head - RL

  

me 

 

Friday, June 05, 2009 3:18:37 PM

Page 41 

© 2005 Mitchell Repair Information Company, LLC. 

Fig. 80: Identifying Power Steering Pump And P/S Hose Clamp 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

9. Remove the alternator (see ALTERNATOR REMOVAL AND INSTALLATION ).  

10. Remove the intake manifold (see INTAKE MANIFOLD REMOVAL AND INSTALLATION ).  

11. Remove the six ignition coils (see IGNITION COIL REMOVAL/INSTALLATION ).  

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 HO2S) connectors  

13. Remove the front warm up three way catalytic converter (front WU-TWC) (see WARM UP TWC 

REMOVAL/INSTALLATION ) and rear warm up three way catalytic converter (rear WU-TWC) 
(see REAR ).  

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

LINE/QUICK-CONNECT FITTING REMOVAL ). 

 

2007 Acura RL 

2005-08 ENGINE Cylinder Head - RL

  

me 

 

Friday, June 05, 2009 3:18:37 PM

Page 42 

© 2005 Mitchell Repair Information Company, LLC. 

Fig. 81: Identifying Cover And Quick-Connect Fitting (Fuel Line) 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

15. Remove the purge joint. 

Fig. 82: Identifying Purge Joint 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

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

 

2007 Acura RL 

2005-08 ENGINE Cylinder Head - RL

  

me 

 

Friday, June 05, 2009 3:18:37 PM

Page 43 

© 2005 Mitchell Repair Information Company, LLC. 

Fig. 83: Identifying Upper Radiator Hose And Lower Radiator Hose 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

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

Fig. 84: Identifying Heater Hoses And Water Bypass Hose 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

18. Remove the two bolts (A) securing the harness holder. 

 

2007 Acura RL 

2005-08 ENGINE Cylinder Head - RL

  

me 

 

Friday, June 05, 2009 3:18:37 PM

Page 44 

© 2005 Mitchell Repair Information Company, LLC.