One problem related to front suspension coil spring has been reported for the 2005 Ford F-150. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Ford F-150 based on all problems reported for the 2005 F-150.
While sitting at rest, the left front coil spring broke at the bottom rung. The engine was not running and the truck was unloaded. I heard a loud snap and the truck shook. No parts or fragments were released and the break was clean and rather even across the body of the spring. The stance of the truck has been altered although no change in drivablility to date (next day).