Two problems related to engine cooling system have been reported for the 1997 Ford Expedition. The most recently reported issues are listed below.
The firewall heater hose connectors in the area of the #4 coil pack on many Expedition with the 5. 4l v-8 will leak hot coolant on the #4 cylinder coil pack. This will lead to the failure of this coil pack. Failure of this coil pack causes a severve engine miss and loss of performance. Failure on highway can make vehicle unsafe. Ford is aware of the problem but is not provding a permanent fix.
The complete engine failure occured gradually. . The dealer never was able to diagnosis it until coolant in cylinders 1 and 4 caused the vehicle to not start. The control-trac is very disconcerting since the traction control system will not stay in 4 wheel drive when it has been selected to do so. I have turned this vehicle in for servicing for this problem on 8 occasions with no resolution. . . .