Where is the PCV (Positive Crankcase Ventilation) valve on my fuel injected 5.0/5.8-litre truck?
A very common question, actually, and with good reason since the PCV valve is buried under the upper intake plenum in the passenger side valve cover. The vacuum line isnt even visible from the front of the engine bay. It runs directly up from the valve and under the upper plenum into a port on the back side of the upper plenum.