One problem related to fuel injection rail has been reported for the 2003 Ford Taurus. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Ford Taurus based on all problems reported for the 2003 Taurus.
Engine starts misfiring and loses power completely and shuts off. You can turn ignition off and restart engine and the engine runs good for a few minutes. The fuel rail sensor corrects this problem, but I've installed two sensors in four months.