The 2021 Ford Explorer ST represents the performance-oriented pinnacle of Ford’s best-selling three-row SUV, blending brute power with surprising daily usability. Owners and enthusiasts often wonder about the 2021 Ford Explorer ST reliability, especially given its turbocharged engine and lowered sport suspension. While no vehicle is entirely immune to issues, the Explorer ST generally presents a strong case for ownership when maintained correctly.
2021 Ford Explorer ST Powertrain Reliability
The heart of the 2021 Explorer ST is its 3.0-liter EcoBoost V6, a twin-turbocharged powerhouse producing 400 horsepower and 380 lb-ft of torque. This engine, shared with other Ford performance vehicles, is built with robust internals to handle the increased stress. From a reliability standpoint, this specific EcoBoost variant has shown a mixed bag in long-term data, with some owners reporting carbon buildup on the intake valves due to the direct injection system. Regular fuel injector cleaning and using higher-quality gasoline can mitigate this common issue, preserving the engine’s responsiveness and longevity.
Transmission and Drivetrain Concerns
Paired with the engine is a robust 10-speed automatic transmission, a component often scrutinized in Ford’s performance SUVs. The transmission is designed to handle the ST’s power delivery, but its complexity can lead to occasional software glitches or harsh shifting under aggressive driving conditions. Ensuring the transmission fluid is changed at the recommended intervals using the correct specification is critical for preventing premature wear. The all-wheel-drive system, while excellent for traction, adds mechanical components that require attention over the life of the vehicle.
Common Issues Reported by Owners
When assessing the 2021 Ford Explorer ST reliability, it is essential to review real-world owner experiences. While the majority of reports are positive, certain issues have surfaced more frequently than others. Addressing these proactively can prevent minor annoyances from becoming major repairs.
Infotainment system lag or occasional touch-screen unresponsiveness.
Premature wear of brake pads due to the performance-oriented tuning and weight of the vehicle.
Leaking sunroof drains, a common issue across many Ford models that can lead to water intrusion if not cleared.
Tire wear patterns, as the ST’s handling dynamics and aggressive tire compound can lead to uneven wear if alignment is not periodically checked.
Maintenance Schedule and Cost Considerations
Owning a performance SUV like the Explorer ST involves a slightly more rigorous maintenance schedule than a standard crossover. Sticking to the factory-recommended service intervals is the single best action an owner can take to ensure reliability. This includes synthetic oil changes every 7,500 to 10,000 miles, regular inspection of the cooling system, and monitoring tire pressure, which tends to fluctuate more aggressively with the ST’s performance driving style.
