I have a 1994 F-250 with the 5.8 and I was doing a tune up to it and like an idiot I broke off the factory vacume line harness. It looks like an electrical wiring harness except with 3 or 4 vacume lines in it that are like spegetti thin and brittle. They control my heat flow from floor to vent to defrost. The dealer tells me they can no longer get the part as of 3 yrs ago.
Any ideas where to look and I'd be very greatful. Thank you!

 

Junk yards babe its no walk in the park. But I found all you can do is look. I have a 79 so believe me I know how hard it is to get a simple stupid part. With a 94 you should not have a hard time. You can call a parts store and get the name of it so you can call the junk yards and have them check to see if they have it sometimes but most of the time they are going to tell you to come and look but they can at least croos referrence and tell you if they have a vehicle that might have that part that fits.