a PCV was available on the TF series, see the shop manual - the valve has a spring in it that prevents it from opening until enough vacuum occurs in the manifold, vacuum opens it
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics
