One problem related to transmission shudder has been reported for the 2005 Ford Five Hundred. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Ford Five Hundred based on all problems reported for the 2005 Five Hundred.
05 Ford Five Hundred fwd. Transmission shudder down shifting around 1500 rpm feels almost like a brake problem. Happens more and more often especially on hot days. Dealer serviced transmission 55,000 miles changing fluid and communicating no apparent problems. Total failure 58,000 miles no reverse at all ,could drive it on the trailer in low. Will require a new transmission for sure, this is the last Ford.