The vacuum tree is located at the back of the upper intake manifold on the MPFI engines. Edited answer: the vacuum tree is located (looking from the front of the motor) on the right rear side (driver's side) of the upper intake maniforld. You can locate the disconnected hose and reinsert it to one of the vaccum branches. Do this with a cold engine, a flashlight. Reach your hand through the wires, locate the hose and reconnect. For an older aerostar, there is probably oil on the vaccum tree, you may want to clean it with a non-flammable cleaner fluid/cloth.
vacuum hose dimgram for 1994 ford bronco
As far as I can tell, there is no EGR valve on 1993 Ford Aerostar 3.0L engines. I have searched and found none and the vacuum hose routing decal in the engine compartment does not show an EGR valve.
A 2000 Ford Expedition vacuum hose diagram can be obtained from most Ford dealerships. The vacuum hose diagram can also be found at most auto-parts stores.
siphon It out with a cut garden hose..
vacuum line diagram
A 1998 Ford contour 2.5 liter engine vacuum hose routing diagram can be obtained from most Ford dealerships. The vacuum hose routing diagram can also be found at many auto-parts stores.
Remove the vacuum hose from modulator use small screw driver (pocket screwdriver) when hose is off you will see slots in the end where vacuum hose connects screw in or out then reattach hose and test drive may take couple of adjustments to get where you want.
Ford puts most of their vacuum hose diagrams on the air filter housing cover.
There are many. All hoses get their vacuum from the intake manifold. (plenum)
On a 1994 Ford Aerostar : Follow the TOP radiator hose from the radiator It will connect to the engine cooling thermostat housing The thermostat is INSIDE the housing * on the 4.0L V6 engine the hose actually connects to a metal pipe which is part of the thermostat housing