Two problems related to automatic transmission have been reported for the 2007 Ford Mustang. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Ford Mustang based on all problems reported for the 2007 Mustang.
The engine on my 2007 Ford Mustang was revving high when I started the vehicle. When I put it into drive, the vehicle took off on me hitting another vehicle and crashing through a wall accross from the spot I was parked in. This unintended acceleration has not happened prior to this incident but the vehicle only had 5,075 miles on it.
2007 Mustang gt equipped with the 5rss5 automatic transmission. "whining" sound coming from the transmission when in 2nd gear after it has reached operating temperature. Service advisor advised that its normal and no service is required even without mechanic to inspect the problem. Advisor did not write up service ticket. Later discovered a fellow owner had same problem and it found that the 2nd gear clutch was faulty and was rubbing the case from the inside causing the whining sound. Case was replaced and sound was gone. Another incident was discovered, and owner stated it led to complete failure due to metal particles circulating in the system destroying the other gears after prolonged use.