Buying a used car can be a smart way to save money, but not all pre-owned vehicles are worth the investment. Some models come with hidden mechanical issues that can turn routine maintenance into an expensive, time-consuming nightmare. Whether it’s poor design, unreliable parts, or frequent breakdowns, these vehicles can quickly drain your wallet with costly repairs. Many of them have widespread issues that mechanics dread working on, making even simple fixes a major hassle. Before purchasing used cars, it’s crucial to know which models have the worst repair records. Below are seven used cars that can be a nightmare to fix, potentially causing more stress than they’re worth.
Ford Explorer (2011–2019)
The 2011–2019 Ford Explorer may look like a solid choice for a used SUV, but it comes with a serious design flaw. The water pump is buried inside the engine, making replacements incredibly labor-intensive and expensive. When the pump fails, coolant can leak into the engine oil, leading to catastrophic engine failure. Many owners have been hit with repair bills exceeding $3,000, making this issue one of the biggest downsides of owning an Explorer.
In addition to the water pump problem, the Ford Explorer also struggles with transmission failures and electrical malfunctions. Many drivers report harsh shifting, delayed acceleration, or complete transmission failure well before reaching 100,000 miles. Electrical issues, including faulty power steering and malfunctioning sensors, add to the frustration. These recurring problems make the Explorer a risky choice for anyone looking for a reliable used SUV.
Nissan Juke (2010–2019)
The Nissan Juke might stand out with its quirky design, but beneath its unique exterior lies a host of reliability issues. One of the biggest problems is its continuously variable transmission (CVT), which is known for premature failure. CVT repairs are extremely costly, often requiring a full replacement that can cost thousands of dollars. Many Juke owners find themselves dealing with transmission failures before reaching 75,000 miles, making it a financial burden.
Beyond its transmission issues, the Juke also suffers from timing chain and turbocharger failures. A stretched timing chain can cause severe engine damage, leading to high repair costs. Turbocharger malfunctions further add to the list of problems, often resulting in sluggish performance or complete engine failure. With both drivetrain and engine troubles, the Nissan Juke is one of the least reliable compact SUVs to buy used.
