Mazda 323/MX-3/626/MX-6/Millenia/Protégé 1990-1998 and Ford Probe 1993-1997

PCV Valve

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The PCV valve is located in a grommet attached to the valve cover. For crankcase ventilation system testing, refer to Driveability & Emissions Controls .

REMOVAL & INSTALLATION



See Figures 1 and 2

  1. Remove the PCV valve from the valve cover grommet.
  2.  
  3. Disconnect the hose from the PCV valve and remove it from the vehicle.
  4.  



Click image to see an enlarged view

Fig. Fig. 1: To remove the PCV valve, first detach the vacuum hose from the valve ...



Click image to see an enlarged view

Fig. Fig. 2: ... then pull the PCV valve from the valve cover grommet

  1. Check the PCV valve for deposits and clogging. If the valve rattles when shaken, it is okay. If the valve does not rattle, clean the valve with solvent until the plunger is free, or replace it.
  2.  
  3. Check the PCV hose and the valve cover grommet for clogging and signs of wear or deterioration. Replace, as necessary.
  4.  

To install:
  1. Connect the PCV hose to the PCV valve.
  2.  
  3. Install the PCV valve in the valve cover grommet.
  4.  

 
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