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Separating Fact from Fiction in America’s Iconic Pony Car

A comprehensive analysis of the reliability of Ford Mustangs, covering their history, common issues, and real-world data to help you make an informed decision. …


Updated July 9, 2023

A comprehensive analysis of the reliability of Ford Mustangs, covering their history, common issues, and real-world data to help you make an informed decision.

Early Years (1964-1973)

The first-generation Ford Mustang, introduced in 1964, was a revolutionary car that combined style, performance, and affordability. While it was not particularly reliable by today’s standards, its mechanical simplicity and robustness helped to establish the Mustang as a durable and long-lasting vehicle.

Common Issues (1979-1993)

The late 1970s to early 1980s saw significant changes in emissions regulations, which led to the introduction of more complex engine management systems. This period also marked the beginning of the Fox-body era (1979-1993), which featured a number of reliability concerns:

  • Transmission issues: The Ford AOD (Automated Overdrive) transmission was notorious for its tendency to slip and hesitate.
  • Engine problems: The 5.0-liter V8 engine, popular among enthusiasts, had issues with oil consumption and coolant leaks.
  • Electrical gremlins: Owners reported sporadic electrical faults, often related to the vehicle’s computer systems.

Fourth Generation (1994-2004)

The fourth-generation Mustang introduced significant upgrades in terms of performance, handling, and comfort. However, this period also saw some reliability issues arise:

  • 5-speed manual transmission: The Tremec T-45 transmission had problems with synchronization and wear.
  • Engine oil leaks: Some owners reported excessive engine oil consumption and leaks.

New Edge (2005-2010)

The 2005 Mustang marked a significant step forward in terms of refinement, technology, and performance. While generally reliable, some issues were reported:

  • Transmission problems: The Ford 4R70W transmission experienced overheating and slipping.
  • Electrical system glitches: Some owners encountered intermittent electrical faults.

Fifth Generation (2010-2014)

The 2010 Mustang introduced a new independent rear suspension and significant engine upgrades. This period saw some reliability concerns:

  • Transmission issues: The Ford 6R80 transmission had problems with shifting, slipping, and overheating.
  • Engine oil leaks: Some owners reported excessive engine oil consumption.

Sixth Generation (2015-Present)

The current Mustang has received positive reviews for its improved reliability, refinement, and performance. Key upgrades include:

  • Transmission improvements: The Ford 6R80 transmission has been revised to address previous issues.
  • Improved engine management: Modern engine control systems have reduced the likelihood of problems.

Reliability Data

While individual experiences can vary greatly, various studies and data analyses provide insight into the reliability of Ford Mustangs. Some key findings include:

  • J.D. Power: The 2020 Vehicle Dependability Study ranked the 2018-2020 Mustang among the top three models in its segment for overall dependability.
  • Consumer Reports: A 2022 analysis by Consumer Reports found that the current Mustang has an average reliability rating of 3.5 out of 5, with some model years performing better than others.

Conclusion

While Ford Mustangs have faced various reliability concerns over the years, the latest models have addressed many of these issues and demonstrated significant improvement in terms of dependability. With proper maintenance and care, a modern Mustang can provide its owners with enjoyable driving experiences for many years to come.

Recommendations:

  • Buy a newer model: If you’re considering purchasing a Ford Mustang, opt for the latest model (2015 or later) for improved reliability.
  • Regular maintenance: Perform routine maintenance tasks, such as oil changes and fluid checks, to prevent common issues from arising.
  • Research and inspect: Research your desired model year and condition thoroughly. Have any pre-owned vehicle inspected by a trusted mechanic before purchase.

By understanding the history of Ford Mustang reliability and considering the latest data, you’ll be better equipped to make an informed decision about purchasing or owning America’s iconic pony car.