One problem related to tire valve 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.
Tire went flat going 65 mph on a interstate highway. Filled the tire up with air the next day to look for possible leak and noticed valve stem was cracked. I purchased 4 tires in July of 2007. During the month of August 2008, 3 of the tires went flat do to cracked stem valves. The first 3 tires the stem was replaced. The tire that went flat on the highway was taken back to point of purchased and was replaced.