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2012 Ford Mustang Transmission Problems

99 TrueDelta members own (or used to own) a 2012 Ford Mustang. 13 of these members (13.1%) have reported transmission repairs for their car. A total of 17 transmission repairs to 2012 Ford Mustangs--an average of 0.2 per vehicle--have been reported.

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2012 Ford Mustang problems occur, check out our car reliability stats.

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Percentage of 2012 Ford Mustang repairs by problem area

Chart based on 86 repairs.
Non-members can see only ten 2012 Ford Mustang repair histories. Log in or join us to see them all.

2012 Ford Mustang 2dr Coupe

444-horsepower 5.0L V8 6-speed manual RWD

3298 mi   The differential ring and pinion was just replaced (at 5320km) due to pitting, along with all the bearings for good measure. This was to fix a noise issue. 

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2012 Ford Mustang 2dr Coupe

412-horsepower 5.0L V8 6-speed manual RWD

10000 mi   Vent valve on rear axle leaking differential fluid. Fluid found on drivers side axle and differential housing. Repaired under TSB 12-8-15. Dealer added adhesive to threads on vent valve and checked fluid level. 
9000   Had unbearable noise from rear end. Dealer change out pinion bearings and axle bearings under drive train 50K/5yr warranty for my 2012 GT. 
12000   8.8 rear end with 3:31 gears, had SECOND pinion bearing go out (replaced once already) causing severe rear end whine at 60+ mph. Repaired under drivetrain warranty. 
35000   2nd and 3rd gear synchronizers replaced. 
3000   Transmission became diffucult to shift, sometimes not going into gear. Dealership replaced transmission fluid as per a ford tsb. Shifting is better but not great like when new. Transmission noticeably noisier after fluid swap also. 
8000   Transmission difficult to shift into 2nd and/or grinding. Most noticeable for the first few minutes after a cold start, and on days when the ambient temperature was low. Dealer replaced transmission fluid with updated fluid per TSB. 

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2012 Ford Mustang 2dr Coupe

412-horsepower 5.0L V8 6-speed automatic RWD

29000 mi   Replaced transmission gear selector assembly under warranty. 

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2012 Ford Mustang 2dr Coupe

305-horsepower 3.7L V6 6-speed manual RWD

6746 mi   Sealed the leak. 
16000   Leaking from rear axle. Replaced leaking vent tube. Valve assembly - vent. 

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2012 Ford Mustang 2dr Convertible

305-horsepower 3.7L V6 6-speed manual RWD

3000 mi   manual transmission notchy and often difficult to shift into first gear when car was moving 

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2012 Ford Mustang 2dr Convertible

305-horsepower 3.7L V6 6-speed automatic RWD

40000 mi   Differential Leak 

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