Acura RL. Manual - part 597

Fig. 2: Identifying Engine Cover 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

2. Remove the air intake duct (see THROTTLE BODY REMOVAL/INSTALLATION ).  

3. Disconnect the positive crankcase ventilation (PCV) hose (A), brake booster vacuum hose (B), and 

vacuum hose (C). 

Fig. 3: Identifying Positive Crankcase Ventilation Hose, Brake Booster Vacuum Hose And 
Vacuum Hose 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

4. Disconnect the evaporative emission (EVAP) canister purge hose (A) and water bypass hoses (B), 

then plug the water bypass hoses. 

 

2007 Acura RL 

2005-08 ENGINE Intake Manifold and Exhaust System - RL

  

me 

 

Friday, June 05, 2009 3:12:35 PM

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© 2005 Mitchell Repair Information Company, LLC. 

Fig. 4: Identifying Evaporative Emission Canister Purge Hose And Water Bypass Hoses 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

5. Remove the engine wire harness connectors and wire harness clamps from the intake manifold. 



Intake air temperature (IAT) sensor connector  



Throttle actuator connector  



Manifold absolute pressure (MAP) sensor connector  



Evaporative emission (EVAP) canister purge valve connector  



Intake manifold tuning (IMT) valve actuator connector  

6. Remove the upper cover mounting bolts and nuts sequentially in three steps, remove the upper cover. 

Fig. 5: Identifying Removal Sequence Of Intake Manifold Upper Cover Mounting Bolts And 
Nuts 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

7. Remove the intake manifold mounting bolts and nuts sequentially in three steps. 

 

2007 Acura RL 

2005-08 ENGINE Intake Manifold and Exhaust System - RL

  

me 

 

Friday, June 05, 2009 3:12:35 PM

Page 3 

© 2005 Mitchell Repair Information Company, LLC. 

Fig. 6: Identifying Removal Sequence Of Intake Manifold Mounting Bolts And Nuts 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

8. Remove the intake manifold. 

INSTALLATION 

1. Install the intake manifold. Tighten the bolts and nuts sequentially in three steps. Always use a new 

intake manifold gasket. 

Specified Torque  

8 x 1.25 mm: 22 N.m (2.2 kgf.m, 16 lbf.ft)  

Fig. 7: Identifying Tightening Sequence Of Intake Manifold Mounting Bolts And Nuts 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

2. Install the upper cover. Tighten the bolts and nuts sequentially in three steps. Always use a new 

gasket. 

Specified Torque  

NOTE:

Do not screw and unscrew the 6 mm bolts securing the upper intake 
manifold and lower intake manifold.

 

2007 Acura RL 

2005-08 ENGINE Intake Manifold and Exhaust System - RL

  

me 

 

Friday, June 05, 2009 3:12:35 PM

Page 4 

© 2005 Mitchell Repair Information Company, LLC. 

6x 1.0 mm: 12 N.m (1.2 kgf.m, 8.8 lbf.ft)

Fig. 8: Identifying Tightening Sequence Of Upper Cover Mounting Bolts And Nuts 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

3. Install the EVAP canister purge hose (A) and water bypass hoses (B). 

Fig. 9: Identifying Evaporative Emission Canister Purge Hose And Water Bypass Hoses 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

4. Install the positive crankcase ventilation (PCV) hose (A), brake booster vacuum hose (B), and vacuum 

hose (C). 

 

2007 Acura RL 

2005-08 ENGINE Intake Manifold and Exhaust System - RL

  

me 

 

Friday, June 05, 2009 3:12:35 PM

Page 5 

© 2005 Mitchell Repair Information Company, LLC.