hi can anyone help me please i am replacing the vacuum pipes on my v8 3.9 disco because the where all perished but i have found that the pipe from the fuel pres regulator is missing. so i need to replace it but where does the other end go.

 

I know on my 4.0 it is about four inches long and goes from the fuel pressure regulator
to an small nipple on the back side of the plenum.

 

on my 95 3.9 it is abouit 8" long and goes to a stem under the IACV that points back at the firewall

 

thanks lads been looking in manuals and on other engines but all say and look different. so im going with confidence and gonna sort it. thanks again

 

Here's a pix of a 97, which uses a source of manifold vacuum close to the regulator. Needs vacuum from somewhere, even if a plastic T is needed. Important to note that the engine vacuum and cruise control vac are two different sources and should not be mingled.