Grand Cherokee 4WD L6-242 4.0L VIN S MFI (1993)
Fig. 119 Check Ball Locations in Upper Housing
(1) Note location of check balls in valve body upper housing (Fig. 119). Then remove the one large diameter and the six smaller diameter check balls.
Check balls will be steel on some early production models and plastic on later production models.
Fig. 120 Shuttle Valve
E-Clip And Secondary Spring Location
(2) Remove E-clip that secure shuttle valve secondary spring on valve stem (Fig. 120).