One problem related to ignition has been reported for the 2005 Ford Taurus. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Ford Taurus based on all problems reported for the 2005 Taurus.
I have issues with this car when the temperature falls between 20 and 35 degrees with a coating of slush or snow from 1/4 of an inch up to 5 inches. The vehicle needs to be traveling at 40 to 65 mph and usually on a straight away such as the thruway. Sometimes when this car has issues I get a thump from the rear axle and the vehicle shifts very hard between 3rd and 4th gear. It's an automatic transmission. . In these weather conditions the vehicle will buck or surge and feels like the mechanical or electrical system is going to quit functioning.