Drivers of the 2015 Ford Explorer often take the power steering for granted until a warning light appears or the steering wheel suddenly becomes heavy. This system is the backbone of daily maneuverability, transforming a heavy vehicle into a responsive machine that glides through parking lots and highway on-ramps. Understanding how it works and how to maintain it is essential for preserving the driving dynamics that made the Explorer popular.
How the Power Steering System Works
The 2015 Ford Explorer utilizes an electric power steering (EPS) system, a significant evolution from the hydraulic pumps of previous decades. Instead of relying on a belt-driven pump pushing fluid, this system uses a motor mounted directly to the steering rack. Sensors detect the torque and angle of the steering wheel, and the vehicle’s computer instantly calculates the necessary assistance, providing precise and variable effort depending on whether you are parking or cruising.
Electronic Control Unit and Sensors
The Electronic Control Unit (ECU) acts as the brain of the system, processing data from the steering angle sensor and torque sensor. This allows for features like variable assist, which is typically set to "Normal" or "Sport" driving modes. If the system detects a malfunction, it stores a diagnostic trouble code and illuminates the warning light on the dashboard, indicating that professional diagnosis is required.
Common Issues and Warning Signs
While the EPS system is robust, owners may encounter specific issues that affect performance. A common precursor to failure is a stiff or unresponsive steering wheel, particularly noticeable at low speeds. Additionally, some drivers report the EPS warning light flickering, which often points to a loose connection, a failing sensor, or a problem with the wiring harness under the hood.
Steering wheel feels heavy or difficult to turn.
Squealing noise when turning, indicating a potential belt issue (if equipped with a hydraulic backup) or electrical noise.
The warning light on the dashboard remains illuminated.
Vibration in the steering wheel during straight-line driving.
Maintenance and Repair Considerations
Proper maintenance can extend the life of the power steering system significantly. While there is no fluid to change in most EPS systems, ensuring the steering wheel is centered when starting the vehicle helps the system calibrate correctly. If the system requires service, the repair often involves replacing a sensor or the wiring harness rather than the entire unit, making diagnosis a critical first step to avoid unnecessary expenses.
Aftermarket Upgrades and Recalls
Some 2015 Explorers were subject to recalls related to the steering system, specifically concerning software updates that improved calibration. When looking for replacement parts, opting for OEM (Original Equipment Manufacturer) components ensures compatibility with the vehicle’s specific trim and year. Aftermarket alternatives can work, but they may not integrate seamlessly with the advanced stability control features.
Driving Dynamics and Handling
The tuning of the power steering in the 2015 Explorer strikes a balance between comfort and control. In normal driving conditions, the system provides gentle feedback that makes parking effortless. When pushed harder on winding roads, the steering firms up, giving the driver confidence in the vehicle’s grip and stability. This balance is crucial for the Explorer’s role as a versatile family hauler that doesn't feel cumbersome.
For owners experiencing persistent issues, consulting a certified mechanic is the best course of action to diagnose whether the problem lies in the sensor, motor, or wiring. Addressing these issues promptly ensures the vehicle remains safe to drive and maintains the confident handling that defines the driving experience.
