Table 1 shows ten common power train related problems of the 2009 Ford F-150. The number one most common problem is related to the power train (18 problems). The second most common problem is related to the automatic transmission (four problems).
Random downshift to first gear while traveling down the highway at 70mph resulting in wheel lock-up and engine redline. Read details...
2009 F-150 w/ @ 15,000 miles has erratic shifting and has a failing "park" gear. Approximately 20% of the time "park" will not engage and allows the vehicle to roll on an incline. No repair has been made at this time. Read details...
Extremely hard downshift malfunction. Vehicle violently shudders and slams hard into lower gear. Read details...