The EGR Valve is located just below the firewall lip top center of the engine compartment.
Inside the distributor
on my 1999 ford mercury villager its on top of transmission under the van
it is in the back of vavle cover on firewall side. you can't see it unless you remove the intake plenum.
How do you change the thermostat in 1999 Mercury Villager
Yes.
Next to the fuses under the dash.
p1446
Under the dash to the right of the steering column.
were is the iac locate on a 1999 mercury mystique
Under the dash near the fusebox.
According to the 1999 Mercury Villager Owner Guide : ( 20.0 US. gallons )