PCV Valve Hose: Service and Repair

Fig. 9 Fixed Orifice Fitting - 4.0L:

FIXED ORIFICE FITTING

REMOVAL
When installing fixed orifice fitting, be sure locations of fixed orifice fitting and air inlet fitting have not been inadvertently exchanged. The fixed orifice fitting is light grey in color and is located at rear of valve cover. The air inlet fitting is black in color and is located at front of valve cover.
1. Pull fixed orifice fitting from valve cover grommet.
2. Separate fitting from CCV breather tube.

INSTALLATION
When installing fixed orifice fitting, be sure locations of fixed orifice fitting and air inlet fitting have not been inadvertently exchanged. The fixed orifice fitting is light grey in color and is located at rear of valve cover. The air inlet fitting is black in color and is located at front of valve cover.
1. Connect fitting to CCV breather tube.
2. Return fixed orifice fitting to valve cover grommet.