Originally Posted by mkos
where is the pcv valve located on the 4.2? i think i have a vaccum leak somewhere aswell.
It's located on the passenger's side valve cover, all the way in the back. The hose runs to a hard platic tube that comes forward to an elbow behind and beneath the throttle bady inlet. A new PCV valve cost me about $3.00 at Advance Auto. Hope that helps.
yagi_boy