On 22 Oct 2005 16:17:51 -0700, email@example.com
>1990 F150 , 5.0 v8, 4x4 , longbox.
>Bought it recently for $500. Truck has 170k miles, "Rebuilt Engine
> has 65k. Rusty, but runs strong and starts immediately and doesn't
> burn oil. No regrets.
>Theres a hose fitting at the base of the air filter housing. Its empty.
>Theres a hose fitting at the base of the oil filler cap, also empty.
>I'm figuring the two go together under the general category of PCV but
> dont find it in the chilton book i have. "Finger Test" shows negative
> air pressure at both fittings.
>Do I have it correct? WTF is this hose called co I can track/find a
> Mike D
It is the crankcase vent hoes. It allows the PCV to draw
clean air from the air cleaner thru the left rocker cover
into the engine where is completes the trip thru the engine.
It was originally a plastic tube connected on each end with
rubber elbows. Any light weight flexible tubing that is oil
resistant should work. If you feel a vacuum at the air
cleaner connection, you may have a choked air filter that