Subaru Tribeca 2006

Exhaust Manifold

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Due to the unique design of the Subaru engine, an exhaust manifold is not used. The exhaust enters directly into the front Y-pipe.

Removal & Installation



  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Remove or disconnect the following:

    Negative battery cable
     
    Air cleaner case, if necessary
     
    Front Oxygen Sensor (O 2 S)
     
    Front undercover
     
    Rear O 2 S electrical connector
     
    Y-pipe-to-rear pipe mounting nuts and separate the Y-pipe from the rear pipe
     
    Bolts that secure the front Y-pipe to the cylinder head
     
    Y-pipe from the hanger bracket
     
    Front exhaust pipe from the catalytic converter and discard the gaskets
     

  4.  

To install:

  1. Clean all gasket surfaces completely.
  2.  
  3. Install or connect the following:

    New gaskets
     
    Front catalytic converter to front exhaust pipe
     
    Y-pipe Temporarily tighten the bolt that holds the center exhaust pipe to the hanger bracket.
     
    Y-pipe, to the cylinder head
     
    Y-pipe to the rear pipe Tighten the retainers.
     

  4.  
  5. Tighten the center exhaust pipe to hanger bracket

    Rear O 2 S electrical connector
     
    Front O 2 S electrical connector
     
    Front undercover, if equipped
     
    Air cleaner case, if removed
     
    Negative battery cable
     

  6.  
  7. Start the engine and check for exhaust leaks.
  8.  

 
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