Ford e150 econoline 5l v8
 

erm got a small problem have bought a van and a pipe has been cut and cant figure out axactly where its supposed to be going as it doesnt appear to leed anywhere. This is a photo i have found which the pipe appears to leed back over in the van

http://s21.postimg.org/pjqlg4bmv/ford.jpg

And this is a photo of my actual van where the pipe appears to leed towards the front of the van.

http://s27.postimg.org/ceuki17sz/WIN...802_170518.jpg

cheers for any help

This may be helpful and maybe not.
The piping you are pointing to is part of what was called the thermac emission system. When the engine is cold a belt driven air pump was supposed to supply addl air to the exhaust manifolds to complete the burning of the hydrocarbons pushed out into the exhaust. Once a certain temp was reached a switching valve was supposed to close off the air to the manifolds and send it on to the converter. As you can see there were several check valves in the system to prevent a possible backfire from going back and burning up the air pump. There was also a diverter valve in the system to divert air back to the air cleaner when coasting to prevent a backfire from taking place.
It looks as if the pipe you see in the pix cut off and crimped was the one that might go to the converter. When someone didn't know how to correct any problem with the system, they just disabled it. The air pump may even have been removed. When properly maintained the system worked OK. Certain areas required all emission parts to be in working order and not removed. It may not apply where you are located.
Sorry for the long winded explanation.

thanks for the info...so had a look, defo no pump sitting round underneath.. we thought it was leading to the lower casings of the engine...we were actually looking at this system because the van is using way more fuel than it shoud be and after asking around we were told that this system could be causing the over fuel use.. the motor seams to run fine but at about 2/3 mpg there appears to be a problem......

any ideas would be fantanstic....:confused::confused::confused:

Those engines usually were good for 15 MPG or better depending on how they were driven. On the fuel rail should be located the fuel pressure regulator. If you remove the vacuum hose from the regulator you may find it to have liquid gasoline in it. It should not have anything in it except vacuum when the engine is running. If the diaphram in it is ruptured it will allow engine vacuum to suck in lots of fuel, more than the engine can burn. That might be the reason for the lousy mileage. It is worth a check to eliminate that possibility.