One problem related to engine has been reported for the 1999 Mercury Villager. The most recently reported issues are listed below.
Gas pedal sticking upon acceleration from stop. Whether or not at light, stop sign or leaving parking space. Also having problems when accelerating on highway when pushing pedal down to accelerate. Problem is when I try to pass someone on highway, it feels like it's not getting any gas. Repair facility cleaned throttle chamber which seems to help. However, the problem when trying to accelerate fast when passing someone is still there.