Two problems related to noises during shifting have been reported for the 1999 Ford F-250. The most recently reported issues are listed below.
When traveling on highway at normal speed vehicle will not down shift, and vehicle makes noises. Dealership is aware of problem.
Loud knocking noise from engine, dealer said drive it until it quits it is a gas engine but it sounds like a diesel,, transmission which is a 5 speed manual comes out of gear when you shift from 2 to 3 this happens about 20-30% of the time at speed of about 15 engine rpm is around 3000-3500, had a proublem with the air bag system when is was 2 days old dealer had the truck for about 3 weeks, not to sure that I want them to tear into the transmission, engine noise the service manager had no idea what that proublem is.