I have a 2012 E-450, and mice have eaten the vacuum line that starts with red hose at the intake area, runs around to the right front of the van then disappears down behind the RF fender and goes who knows where.

Can anybody help me figure out what the routing of that is ? I need to replace it and I can't seem to figure out where it's going.

Thanks !

 

Vacuum reservoir. Way down under all the A/C and heater crap. I think they made it slightly easier on newer van, but still a pain. Search for vacuum check valve replacement: $10 part and $1000 labor. It maybe easier to reroute the line to the passenger footwell, add a check valve and reservoir inside and plug it to the line that goes from the passenger feet firewall to the vent controls.

 

I don't have the original post for this "modification" but it shows where to cut to access the reservoir in a E-150. may be the same for yours. Check my Word attachment for details.