DeTomaso Mailing List: September 2000, Message #226

Do any of your automotive engineers out there know if there is some advantage 
to having the positive crankcase ventillation line run from inside the air 
filter can to the passengers side valve cover as opposed to simply having a 
filtered breather on that valve cover?

It is illogical to me to have both ends of the system attached to negative 
pressure areas, unless the relative vacuums under different throttle settings 
plays a role in the PCV valve function.

Thanks,

Jim Oddie