Yo Dan, I have a 2000 2.5L with the dual coils?!!?! I don't know if we have the same basic motor or not.
BUT...on mine it is just below the Intake Manifold on the drivers side of the engine. A little hard to get to, but not TOO bad.
Look around the forward half of the drivers side of the engine just below the intake. Be careful to put back any hoses that you may knock loose while swapping the PVC. If you DO knock one loose, you'll know it! Mine ran like crap so I shut her off and found the loose hose and put it back on...good to go.
Hope that helps.
1997 Ranger XLT Stepside - 2000 2.5L Engine - Cayman Green - Actually it's running pretty good after new plugs, coils, plug wires, pvc valve and Injectors!!! Runs like a champ!
So, I'll open a homebrew play some Fantasy Football