If it's a vent hose it doesn't go anywhere.
on my 1999 ford mercury villager its on top of transmission under the van
In the bottom of the transmission pan.
How do you change the thermostat in 1999 Mercury Villager
Yes.
Front of the transmission, the thing the shift cable attaches to.
The speed sensor is on the top rear of the transmission. It is held on by one screw.
According to the 1999 Mercury Villager Owner Guide : ( 20.0 US. gallons )
The 1999 Mercury Villager is equipped with a total of four motor mounts. These include two engine mounts and two transmission mounts, which help to secure the engine and transmission to the vehicle's frame and absorb vibrations. Proper functioning of these mounts is essential for smooth operation and stability while driving.
In the engine.
134-A
No, no room.
The speed sensor is on the top back corner of the transmission housing. It is held down by one screw.