I called Ray Crowe last week to order new check valves for the rat's nest. He said they're are five: 3 small green/white and 2 large green/black. I received them and went to work on my car. I only found four to replace: 2 small & 2 large. Am I missing one or is it possible that Ray was mistaken?

My car is a manual transmission, by the way.

 

there are five dude...one white and black in the rear of the intake manifold...two white and blacks in the front of the intake manifold, one black and green in the front of the intake manifold, then you have one black and green that goes between the boost tank and the turbo boost intake setup. just follow the one vacuum line that goes from the boost tank (which is the black box in the front of the intake manifold), and goes towards the boost sections of the turbo)...take note...i'm refering to front and rear of the intake manifolds as front of car...then the rear is the firewall side.

 

There are 4 plastic ones, and one aluminum one. The plastic ones are the ones that frequently fail, the aluminum one is pretty hardy. The aluminum check valve is for the gas tank fumes, BTW.

I sell replacement Viton check valves, BTW - PM'd you on it.

Dale