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Ford Mustang Engine Problems and Repair Histories

1059 TrueDelta members own a 2000 or newer Ford Mustang. 168 of these members (15.9%) have reported engine repairs for their car. A total of 125 engine repairs to Ford Mustangs--an average of 0.1 per vehicle--have been reported.

See our lemon odds and nada odds page for more details. To see how frequently Ford Mustang problems occur, check out our car reliability stats.

Want to read about specific problems behind these stats? Jump to the Ford Mustang problem descriptions below.

Don't infer Ford Mustang problem frequency from what you see on this page. Many lucky owners have had no repairs, and their cars are not shown.

Percentage of Ford Mustang repairs by problem area

20% of the Ford Mustang repairs were to the engine, 13% to the transmission, 6% to the brakes, 12% to the suspension, 27% to the electrical or air-conditioning systems, 18% to the body and trim, and 5% to other areas of the vehicle.

Chart based on 636 repairs.

Ford Mustang engine repair cost distribution

Of the Ford Mustang engine repairs that were not covered by warranty and were not do-it-yourself repairs, 21% cost less than $100, 47% between $100 and $499, 20% between $500 and $999, 6% between $1000 and $2499, and 6% more than $2500.

Chart based on 89 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
Non-members can see only ten Ford Mustang Engine problems and repair histories. Log in or join us to see them all.
Repair costs are in local units.

2007 Ford Mustang 2dr Coupe

300-horsepower 4.6L V8 5-speed automatic RWD

Ford Mustang in Florida, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Aug 2007 3000    
4300 0 New coil and spark plug. Repaired under warranty. 
 

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2007 Ford Mustang 2dr Convertible

300-horsepower 4.6L V8 5-speed manual RWD

Ford Mustang in Quebec, Canada
Date Odometer
(in miles)
Cost Problem/Repair Description
Oct 2008 6820    
7440 0 Replacement of serpentine belt pulley with bad bearing Serpentine belt idler pulley replaced 
13020 0 Engine makes a ticking noise, at all temperatures, loudest at 1200 RPM. Engine knock occurring during light-load upshifts at 3000-4000RPM, also intermittently under load at 5000RPM and above. Left front O2 sensor was found to have a slow response and was replaced under warranty. Second, more detailed examination of engine ticking noise at 1200RPM. Noise found to be loudest at intake runner for cyl. #4. Other likely sources eliminated. (Bellhousing, injectors, cam covers, etc.) Was told noise is "normal". 
 

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2006 Ford Mustang 2dr Coupe

300-horsepower 4.6L V8 5-speed manual RWD

Ford Mustang in Indiana, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Jan 2007 2000    
11000 0 Fuel pump assembly replaced under warranty per TSB. Hesitation during acceleration after long drive. 
27000 12 VCT Sensor Grommet/Seal failed allowing small oil leak from the driver-side valve cover. Replaced grommet myself for $12. 
29000  
Ford Mustang in Colorado, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Jan 2009 26000    
27000 0 Fuel pump failed and was replaced. 
 
Ford Mustang in Florida, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Jan 2007 9000    
16000 0 Hesitation after long trip on the highway. 
 

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2005 Ford Mustang 2dr Coupe

300-horsepower 4.6L V8 5-speed manual RWD

Ford Mustang in Ontario, Canada
Date Odometer
(in miles)
Cost Problem/Repair Description
Jan 2007 6200    
11780 0 Car would not idle smoothly anymore. 
 
Ford Mustang in Indiana, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Feb 2008 9000    
9000 0 Throttle cut out when accelerating - intermittent. Fuel pumps replaced. 
22000  

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2005 Ford Mustang 2dr Coupe

300-horsepower 4.6L V8 5-speed automatic RWD

Ford Mustang in Washington, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Jan 2007 16000    
20000 0 Fuel pump and fuel level sensor replaced under warranty. 
76000  

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2005 Ford Mustang 2dr Coupe

210-horsepower 4.0L V6 5-speed automatic RWD

Ford Mustang in California, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Apr 2007 17000    
28000 50 Fuel tank replaced to correct complaint that gas pump shuts off repeatedly while fueling even at very slow pace. 
49000 180 Car would lurch and make noise with loss of power for a brief moment and would then regain and be fine. Never stalled and had no loss of control. Problem was determined to be throttle sensor being dirty. Removed & cleaned throttle body & re-pgm. 
58000 50 Thermostat housing leak. Coolant had been leaking all over and was low. Replaced seal and housing parts. Drained coolant and replaced coolant (after a flush-maint item).  
88700 0 Cracked Serpentine belt. 
90000 70 Replaced serpentine belt. Replaced radiator reserve cap. Car was running hot while idling. (Maint. work also elected: Decided to do coolant flush which was previously recommended and would help maintain cooler vehicle). 
97000  

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2005 Ford Mustang 2dr Convertible

210-horsepower 4.0L V6 5-speed automatic RWD

Ford Mustang in Texas, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Feb 2008 24000    
31000 0 Throttle position Sensor failure. TPS replaced. 
41000  

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