Yaris 2007

Positive Crankcase Ventilation System

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PCV Valve



Location

Specific to:

Toyota Yaris 2007-2010

Refer to the accompanying illustration.

Click image to see an enlarged view

Fig. Locating the PCV

Operation

Specific to:

Toyota Yaris 2007-2010

The PCV system consists of the breather tube and the PCV valve. The breather tube connects the crankcase to a contained fresh air source such as the air cleaner. Air passes into this tube and into the engine after being filtered through a spark arrestor screen in order to prevent a the possibility of an explosion within the engine in the case of a backfire.

Removal & Installation

Specific to:

Toyota Yaris 2007-2010

  1. Remove the engine cover.
  2.  
  3. Disconnect ventilation hose.
  4.  
  5. Remove the positive crankcase ventilation valve (PCV valve).
  6.  
  7. To install, reverse the removal procedure.
  8.  
  9. Apply adhesive to the end 2 or 3 threads of the bolt. Adhesive: Toyota Genuine Adhesive 1324, Three Bond 1324 or the equivalent.
  10.  
  11. Tighten to 20 ft. lbs. (27 Nm).

    Click image to see an enlarged view

    Fig. Locating the PCV

  12.  

 
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