Have a 2001 GP that has a leak in a brake line. having a serious problem determining which one is leaking as it seems to be coming from between the firewall and motor. The confusion is from the fact that four lines come down , one goes to the left front and the other three go to the rear. Can't tell where the right front is routed. Does it go all the way the rear and then around and back up to the front? As ridiculous as that sounds?