89 Breather hose
 

I dont know much about cars and was reading through a performance book and it talked about removing the breather hose and adding a filter. Can someone show me where the hose is to the engine. And what is does?

Breather hose? If I had any idea what the hell you were talking about it'd be even easier for me to tell you that you've been misinformed.

Sorry, in the directions on installing one it calls it the PCV fresh air inlet hose. Specificity the direction says disconnect the PCV fresh air inlet hose from the pipe on the valve cover. The book is Haynes Xtreme sport compact preformance.

Sigh... old 1960's musclecar thinking.

I haven't the patience to get into this one... think vacuum in the crankcase instead of positive pressure... think oil stick not popping out and oil coming out of the shaft.... think longer lived seals, a better seal of the piston rings, less water vapor and fuel contaminating your oil and so on. The only time a PCV system is a bad thing on a modern car is if it is clogged.

Before, when the system didn't use vacuum to clear the crankcase it was a take it or leave it kind of thing... made no rel appreciable difference if the gasses were routed to the intake or the atmosphere. What made the difference was the ventilation aperture.

Go to a drag strip or performance meet... most of the cars you will see still have the PCV system intact and often have the hose/piping upgraded and a catch can added to capture oil vapor.

There are more details as far as why to leave it... some of it I don't care to write out and some of it I can't remember at the moment. Just like the charcoal canister and evap controlled fuel tanks and valved fuel caps there are more benefits than just emissions.


And Haynes really stinks as a publisher... so much bad and/or incomplete info in every one of their books.