One problem related to underbody shield has been reported for the 1997 Ford Expedition. The most recently reported issues are listed below.
The contact owns a 1997 Ford Expedition. While driving 20 mph, the steering wheel seized. The vehicle was towed to the dealer who stated that the steering column needed to be replaced and noticed corrosion underneath the undercarriage. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was 63,000.