Three problems related to transmission noise 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 contact owns a 2007 Ford Mustang. While driving 60 mph, the vehicle jumped and the contact heard a strange noise coming from the transmission. An indicator illuminated on the instrument panel. The speed decreased to 45 mph and would not increase when the accelerator pedal was depressed. The vehicle was towed to the Ford dealer and they found no failures. The contact took the vehicle to another dealer for the same failure, but they refused to make any repairs because there was no warranty. The vehicle is currently with the second dealer. The failure and current mileages were 36,400.
The car is a 2007 Mustang with 4. 0l v6 and 5r55s automatic transmission. The car makes a whining sound when accelerating in 1st gear, and a lesser noise in 2nd. It seems to be coming from the transmission. I checked with several Mustang owners who told me that their cars normally don't make that kind of noise. Ford service checked the car and contacted the factory and concluded that the noise is from the planetary gears and that it's normal. They did no corrective work. Afterwards, I found that an earlier version of the transmission, 5r55e had problems with planetary gears which were replaced under warranty - TSB# 02-22-2. Also, I found 2 or 3 people said that their Mustang transmissions made whining noises due to internal parts rubbing on the transmission case. In one case, the noise went away on the car after the transmission housing was changed. In another case the transmission failed. One person describes a similar problem in odi id number : 10209790.
Just driving normally, when automatic transmission reaches its operating temperature, a loud whine comes from the transmission in 2nd gear only. Brought the Mustang back to the dealer and the service advisor could not verify the noise and they refused to take further action.