2015 Ford Explorer Issues

The 2015 Ford Explorer is a popular mid-size SUV known for its comfort and utility, but it is not without its mechanical quirks. From internal water pump failures to steering rack glitches, understanding these common 2015 ford explorer issues is essential for maintaining vehicle safety and longevity.

Owning a versatile SUV like the Explorer means you expect it to handle everything from the daily school run to rugged weekend camping trips. However, even the most well-maintained vehicles can develop gremlins that leave you stranded if you do not know what to look for.

If you are a DIY mechanic or a concerned owner, navigating the landscape of 2015 ford explorer issues can feel overwhelming. In this guide, we will break down the most frequent problems, provide diagnostic steps, and offer practical solutions to keep your Ford on the road.

We will cover critical engine components, drivetrain vulnerabilities, and safety concerns like exhaust leaks. By the end of this article, you will have the expert knowledge needed to troubleshoot effectively and decide when to pick up a wrench or call a professional.

Table of Contents

When discussing the most significant 2015 ford explorer issues, we have to start with the mechanical foundations that affect the vehicle’s drivability. This model year sits in the middle of the fifth generation, and while many bugs were ironed out, several persistent problems remain for owners.

The most frequent complaints from the “EngineNeeds” community involve the powertrain and steering systems. These are not just minor inconveniences; they can impact the overall safety and the resale value of your vehicle if left unaddressed.

Identifying these problems early through preventative maintenance is the best way to avoid high repair bills. Let’s dive into the specifics of the engine and cooling system failures that often plague this specific year.

The Internal Water Pump Disaster

The 3.5L Ti-VCT V6 engine is a workhorse, but it features a design choice that keeps many mechanics up at night. The water pump is driven by the timing chain and is located inside the engine front cover.

When this pump fails, it often leaks coolant directly into the oil pan. This creates a “milky” oil mixture that can destroy engine bearings in a matter of miles, leading to a total engine replacement.

To spot this early, check your oil dipstick frequently for a coffee-and-cream appearance. Also, look for small puddles of coolant near the front of the engine or a sweet smell coming from the vents when the heater is on.

Power Transfer Unit (PTU) Overheating

For those with Intelligent 4WD models, the PTU is a common failure point among 2015 ford explorer issues. This component sends power to the rear wheels, but its fluid capacity is very small and lacks a dedicated cooling system.

Over time, the gear oil inside the PTU can “cook” and turn into a thick, sludge-like substance. This leads to bearing failure, gear whining, and eventually a seized unit that disables the 4WD system.

Pro tip: Do not follow the “lifetime fluid” recommendation from the factory. If you use your Explorer for light off-roading or towing, change the PTU fluid every 30,000 miles to prevent a $2,000 replacement bill.

Electric Power Assisted Steering (EPAS) Failures

One of the most alarming 2015 ford explorer issues involves the sudden loss of power steering assist. This model uses an electric motor rather than a hydraulic pump to help you turn the wheels.

Drivers often report a “Steering Loss Stop Safely” message appearing on the dashboard. When the EPAS fails, the steering becomes incredibly heavy, making it difficult to navigate corners or park safely.

This issue is frequently caused by a fault in the steering rack’s internal sensors or a software glitch in the Power Steering Control Module (PSCM). In some cases, a simple software update at the dealership can fix it, but often the entire rack must be replaced.

Diagnostic Steps for Steering Problems

If you feel a shudder or hear a grinding noise when turning the wheel, it is time to investigate. Start by using an OBD-II scanner to check for codes starting with “U” or “C” in the steering module.

Check the battery voltage as well; electric steering systems are very sensitive to low voltage. A weak battery or a failing alternator can sometimes trigger false steering fault codes.

Always inspect the electrical connectors at the steering rack for corrosion or loose pins. For off-roaders, mud and debris can sometimes work their way into these connectors, causing intermittent signal loss.

Exhaust Fumes and Carbon Monoxide Concerns

A major safety concern for many owners is the presence of exhaust smells inside the cabin, particularly during hard acceleration. This is one of the more documented 2015 ford explorer issues and has been the subject of numerous investigations.

The smell is often caused by unsealed seams in the rear of the vehicle or faulty “air extractors” located behind the rear bumper. These vents are designed to let air out but can allow exhaust gases to be sucked back in.

Ford released several Technical Service Bulletins (TSBs) to address this, which involve applying new sealant to the liftgate area and reprogramming the HVAC system. If you smell fumes, do not ignore it, as carbon monoxide is odorless and dangerous.

How to Test for Cabin Leaks

You can perform a simple smoke test by using a smoke pen near the rear liftgate seals while the engine is running. Alternatively, look for soot buildup around the exhaust tips or the rear auxiliary air conditioning lines.

Ensure that your exhaust tips extend past the rear bumper. Some aftermarket tips or damaged hangers can cause the exhaust to exit under the vehicle body, increasing the risk of fumes entering the cabin.

If you frequently carry passengers, consider installing a portable carbon monoxide detector in the third row. This provides an extra layer of safety until a permanent fix is applied by a certified technician.

Suspension and Chassis Longevity

The 2015 Explorer is a heavy vehicle, and that weight takes a toll on the suspension components. Owners often report “clunking” or “popping” noises when driving over speed bumps or uneven terrain.

The rear toe links are a known weak point and have been subject to recalls. A broken toe link can cause the rear wheel to lose its alignment suddenly, leading to a loss of control.

Front lower control arm bushings also tend to tear prematurely. When these bushings fail, you might notice “steering wander” or uneven tire wear on the inner edges of the front wheels.

Maintaining Your Suspension for the Trail

If you take your Explorer off-road, these components will wear out even faster. Regularly inspect the rubber boots on your ball joints and tie rod ends for tears or grease leaks.

Replacing the factory shocks with high-quality monotube dampers can improve the ride quality and handling. This is a great DIY project that requires basic tools like a jack, jack stands, and a socket set.

Always get a four-wheel alignment after performing any suspension work. The Explorer’s multi-link rear suspension is sensitive to small adjustments, and a proper alignment ensures your tires last as long as possible.

Electrical Systems and the Sync Infotainment

Technology is a double-edged sword in modern vehicles. While the Sync system offers great connectivity, it is also responsible for many 2015 ford explorer issues related to owner frustration.

Common glitches include the screen freezing, Bluetooth failing to connect, or the navigation system losing its position. These are usually software-related rather than hardware failures.

Beyond the infotainment, the backup camera is another frequent failure point. If your screen shows a “Camera Unavailable” message or a distorted image, the camera module in the liftgate likely needs replacement.

Troubleshooting Electrical Gremlins

Before replacing any hardware, try a “Master Reset” in the Sync settings menu. This clears the cache and often resolves minor software bugs and connectivity issues.

Check the wiring harness that passes through the liftgate hinge. Constant opening and closing can cause the wires to fray, leading to intermittent problems with the backup camera or the rear wiper motor.

Ensure your vehicle’s battery is in top condition. Modern Fords use a Battery Management System (BMS) that can shut down non-essential electronics if it detects the battery charge is dropping below a certain threshold.

Brake System Maintenance and Performance

Stopping a two-ton SUV requires a healthy braking system. While the brakes on the 2015 Explorer are generally robust, they can suffer from premature rotor warping, leading to a vibrating brake pedal.

This is often caused by the heat generated during heavy braking or by unevenly torqued lug nuts. Always use a torque wrench to tighten your wheels to the factory specification (100 lb-ft) to prevent rotor distortion.

For those who tow trailers, upgrading to ceramic brake pads and slotted rotors can provide better heat dissipation. This reduces brake fade and improves the overall stopping power when the vehicle is loaded down.

Brake Fluid Flush: The Forgotten Service

Brake fluid is hygroscopic, meaning it absorbs moisture from the air over time. This moisture can lead to internal corrosion in the ABS module and calipers, which are expensive to replace.

Flush your brake fluid every two years regardless of mileage. This is a straightforward DIY task using a vacuum bleeder or the “two-person” method to ensure the lines are filled with fresh, clean fluid.

Check the condition of your flexible brake hoses. Look for any cracking or swelling in the rubber, as a failed hose can lead to a complete loss of braking pressure in one of the hydraulic circuits.

Frequently Asked Questions About 2015 ford explorer issues

Is the 2015 Ford Explorer a reliable car for high mileage?

Yes, the 2015 Explorer can reach 200,000 miles or more, but it requires diligent maintenance. You must stay on top of the water pump, PTU fluid, and suspension components to avoid catastrophic failures.

How much does it cost to fix the internal water pump?

Replacing the internal water pump is a labor-intensive job because it requires removing the timing chain. Expect to pay between $1,500 and $2,500 at a professional shop, as it takes about 10-12 hours of labor.

Are there any recalls for the 2015 Ford Explorer steering?

There have been several recalls and extended warranties related to the EPAS system and the rear toe links. Always check your VIN on the NHTSA website to see if your specific vehicle has any open recalls.

What is the best way to prevent the PTU from failing?

The best prevention is regular fluid changes. Since the PTU does not have a traditional drain plug in most cases, you may need to use a fluid extraction pump to suck the old oil out through the fill hole.

Why does my Explorer smell like rotten eggs?

A “rotten egg” smell usually indicates a failing catalytic converter or a sulfur buildup in the exhaust. This can be related to the exhaust fume issues mentioned earlier and should be inspected by a technician immediately.

Conclusion and Final Recommendations

Dealing with 2015 ford explorer issues doesn’t have to be a nightmare if you are proactive. By understanding the vulnerabilities of the 3.5L engine and the steering system, you can catch problems before they leave you on the side of the road.

Remember that “lifetime” fluids are rarely truly for the lifetime of the vehicle. If you want your Explorer to last, treat it to regular oil changes, fluid flushes, and suspension inspections.

Whether you are tackling a brake job in your driveway or taking your SUV into the shop for a timing chain service, being an informed owner is your best tool. Stay safe, keep your tools sharp, and enjoy the many miles ahead in your Ford Explorer!

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Robert Lozano

Robert Lozano is the founder of Engine Needs. With a passion for engines and automotive technology, he provides expert reviews, guides, and advice to help drivers make smarter vehicle decisions.

2015 Ford Explorer Issues – A Pro Mechanic’S Guide To Reliability