I have a 2001 mustang gt 4.6. I am looking to change all the vaccum lines/hoses because they are all old and brittle. I am looking for a diagram of the routing,..best type of hose/line..etc..picture diagram..etc
If they are still intact/in place then pictures(lots)are better than diagrams. Take them off and down to a good auto parts store to match them up, quite a few are dealer only so take those to the dealer or try to match-up with online parts houses.