yo,
Altho I try not to refer to another site, look @
Vacuum Hose (Line) Replacement w/Rubber Hose in an 89 F 1505.0; (almost 100% same as Bronco"...This should cover most 87-96 V8s (302\351); for the I6s (300)s the solenoids are in the same general area, as well as the valves. You can use this article as a basis to replace yours, just keep in mind it..."
Source: by Booba5185 (Matt)
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to add to Seabronc's info on colors; altho Vac Line Colors don't match on on older vehicles due to changes over the years; & same for the electrical wiring too.
HVAC in 92-96;
Black = from engine source to vacuum check valve & to vacuum reservoir tank & to Control Panel;
White = actuates the Outside Recirculate Door Vacuum Motor;
Blue = Mix (actuates the FLOOR/PANEL air door two-position vacuum control motor);
Red = Floor Flow & Yellow = Panel, (actuate the FLOOR/DEFROST three-position air vacuum control motor).
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