One problem related to automatic stability control (asc) has been reported for the 2006 Ford F-250. The most recently reported issues are listed below.
Own a 2006 Ford f250 powerstroke diesel. When vehicle is driven at about 65-70mph on the highway it tends to start a violent shake that can only be stopped by slowing down the vehicle. I almost got into a fatal accident. This has now occurred about 7 times. The vehicle has about 24,000 miles.