Honda Cars 2007-2008

Exhaust Manifold

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Removal & Installation



Specific to:

Honda S2000 2007-2008

  1. Disconnect the negative battery cable.
  2.  
  3. Safely raise and support the vehicle.
  4.  
  5. Remove or disconnect the following:

    Oxygen Sensor (O 2 S) connector, if it is located in the manifold
     
    Exhaust manifold upper cover
     
    Heat insulator from the manifold, if equipped with air conditioning
     
    Nuts attaching the exhaust manifold to the front exhaust pipe
     
    Pipe from the manifold and discard the gasket. Support the pipe with wire; do not allow it to hang by itself.
     
    Exhaust manifold bracket(s) bolts and bracket(s)
     
    Exhaust manifold attaching nuts, using a crisscross pattern (starting from the center)
     
    Manifold and discard the gasket. Clean the manifold and cylinder head mating surfaces.
     
    Lower manifold cover from the manifold, if equipped
     

  6.  

To install:

  1. Installation is the reverse order of removal. Tighten the nuts to 23 ft. lbs. (31 Nm).
  2.  

Specific to:

Honda Fit 2007-2008

  1. Remove the cover and exhaust manifold bracket, then remove the exhaust manifold.
  2.  

To install:

  1. Install the exhaust manifold and tighten the bolts/nuts in a crisscross pattern in three steps, beginning with the inner bolt.
  2.  
  3. Install the other parts in the reverse order of removal.

    Click image to see an enlarged view

    Fig. Exploded view of the exhaust manifold and related components

  4.  

2.4L Engine

Specific to:

Honda Accord 2007-2008

  1. Raise and safely support the vehicle.
  2.  
  3. Remove or disconnect the following:

    VTEC solenoid valve
     
    Driveshaft heat shield
     
    Cover and exhaust manifold bracket
     
    Exhaust manifold
     

  4.  

To install:

  1. Clean the mounting surfaces. Be sure to use a new gasket.
  2.  
  3. Install or connect the following:

    Exhaust manifold. Tighten the nuts, in a crisscross pattern starting with the inner nut, to specification.
     
    Exhaust manifold bracket and cover
     
    Driveshaft heat shield
     
    VTEC solenoid valve

    Click image to see an enlarged view

    Fig. Exploded view of the exhaust manifold-2.4L engine

     

  4.  

3.0L Engine

Specific to:

Honda Accord 2007

  1. Raise and safely support the vehicle.
  2.  
  3. Remove or disconnect the following:

    Engine undercover
     
    Exhaust pipe from the manifold to be removed
     

  4.  
  5. Lower the vehicle.
  6.  
  7. Remove or disconnect the following:

    Exhaust manifold heat shield
     
    Mounting nuts and the exhaust manifold.
     

  8.  

To install:

  1. Use new gaskets when installing the exhaust manifold.
  2.  
  3. Clean all gasket mating surfaces.
  4.  
  5. Install or connect the following:

    Exhaust manifold. Tighten the nuts to specification.
     
    Heat shield. Tighten the bolts to 16 ft. lbs. (22 Nm).
     

  6.  
  7. Raise the vehicle and connect the exhaust pipe to the manifold using a new gasket. Tighten the nuts to 40 ft. lbs. (54 Nm).

    Click image to see an enlarged view

    Fig. Exploded view of the exhaust manifold-3.0L engine

  8.  

3.5L Engine
Front

Specific to:

Honda Accord 2008

  1. Remove the engine appearance cover.
  2.  
  3. Remove the No. 2 ignition coil and the ignition coil heat insulator.
  4.  
  5. Remove the front A/F sensor (Sensor 1) and the front secondary HO2S (Sensor 2).
  6.  
  7. Remove the exhaust pipe A mounting nuts (front WU-TWC side).
  8.  
  9. Remove the EGR pipe.
  10.  
  11. Remove the A/C condenser fan assembly and the radiator upper bracket/cushion.
  12.  
  13. Carefully remove the front exhaust manifold.
  14.  

To install:

  1. Carefully install the front exhaust manifold with a new gasket and new self-locking nuts. Tighten the nuts in a crisscross pattern in two or three steps to 23 ft. lbs. (31 Nm).
  2.  
  3. Install the parts in the reverse order of removal.
  4.  

Rear

Specific to:

Honda Accord 2008

  1. Remove the strut brace.
  2.  
  3. Remove the P/S feed hose clamp.
  4.  
  5. Remove the cowl cover.
  6.  
  7. Remove the No. 4 ignition coil and the ignition coil heat insulator.
  8.  
  9. Remove the rear A/F sensor (Sensor 1) and the rear secondary HO2S (Sensor 2).
  10.  
  11. Remove the exhaust pipe A mounting nuts (rear WU-TWC side).
  12.  
  13. Carefully remove the rear exhaust manifold.
  14.  

To install:

  1. Carefully install the rear exhaust manifold with a new gasket and new self-locking nuts. Tighten the nuts in a crisscross pattern in two or three steps to 23 ft. lbs. (31 Nm).
  2.  
  3. Install the parts in the reverse order of removal.
  4.  

Civic
2.0L Engine
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Drain the cooling system and relieve the fuel system pressure.
  4.  
  5. Remove or disconnect the following:

    Negative battery cable
     
    Catalytic converter
     
    Exhaust manifold heat shields
     
    Heated Oxygen (HO 2 S) sensor connector
     
    Exhaust manifold bracket
     
    Exhaust manifold

    Click image to see an enlarged view

    Fig. Exploded view of the exhaust manifold-2.0L and 2.2L engines

     

  6.  

To install:

  1. Installation is the reverse of the removal procedure.
  2.  

 
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