One problem related to power assist brake vacuum hoses, lines/piping, and fittings has been reported for the 1996 Ford Contour. The most recently reported issues are listed below.
While driving 20 mph check engine light appeared on the dashboard and remained on. Vehicle vibrated uncontrollably. Vehicle was taken to the dealer for inspection, and mechanic determined that the brake vacuum hose needed to be replaced and replaced it. However, the problem recurred.