This really depends on what engine your F-350 has in it and if it is equipped with the California Emissions system. If you have a 7.5L EFI engine, then the vaccuum diagram will be located on the air filter housing cover.
we have looked everywhere there is no diagram to be found it is a 7.5 efi and not california emission.
where can i find a vacuum line diagram for 1989 ford 2.9 liter engine
Were can you find a fuse diagram for a 1988 ford F350
I have a pic I can send you of the diagram or you an find it in the chilton repair manual at auto zone
where is the vin located on a ford f350 frame 1989
Bad!
how do i down load a wiring diagram for a f350 6.0 diesel engine compartment
You can find a free Ford F1 50 vacuum diagram at most Ford dealerships. Many auto-parts stores will have the vacuum diagram.
vacuum line diagram
the diagram should be under the hood on the sticker with the emissions information
Under the hood
== ==
In both Chiltons and haynes, there is a vac. diagram