Experiencing battery issues with your 2017 Ford Explorer can be frustrating, but you're not alone. Many owners have reported similar problems, ranging from dead batteries to warning lights and strange electrical behavior. Understanding the common causes and potential solutions can help you diagnose the issue and get your Explorer back on the road. Let’s dive deep into the common battery problems plaguing the 2017 Ford Explorer and how to tackle them head-on.

Common Battery Issues in the 2017 Ford Explorer

Frequent Dead Battery

A frequent dead battery is one of the most common complaints among 2017 Ford Explorer owners. This can manifest as needing frequent jump-starts or finding the battery completely drained, especially after the vehicle has been sitting for a relatively short period. Several factors can contribute to this issue. One primary culprit is a parasitic drain, where electrical components continue to draw power even when the vehicle is turned off. Things like a faulty module, improperly installed aftermarket accessories, or even a dome light left on can slowly deplete the battery. Another possibility is a failing battery that can no longer hold a charge effectively. Batteries degrade over time, and factors like extreme temperatures can accelerate this process. Regular testing of the battery's health can help identify if it's no longer performing optimally. Additionally, issues with the charging system, such as a failing alternator, can prevent the battery from being properly recharged while the engine is running. Checking the alternator's output is crucial to ensure it's providing the correct voltage to the battery. Addressing a frequent dead battery requires a systematic approach, starting with identifying potential parasitic drains and evaluating the battery and charging system's health. If you keep experiencing a dead battery, don't ignore it; get it checked out to prevent further inconvenience and potential damage.

Battery Warning Light

The battery warning light illuminating on your 2017 Ford Explorer's dashboard is a clear indicator of a potential issue within the charging system. This light typically activates when the vehicle's computer detects a significant drop in voltage, suggesting that the battery is not being adequately charged. A common cause is a failing alternator, which is responsible for generating electricity to power the vehicle's electrical systems and recharge the battery while the engine is running. If the alternator isn't producing enough power, the battery will eventually drain, triggering the warning light. Another potential reason is a loose or corroded battery cable connection. These connections are vital for ensuring proper electrical flow, and if they become loose or corroded, it can disrupt the charging process and activate the warning light. Regularly inspecting and cleaning the battery terminals can help prevent this issue. Additionally, a failing battery can also trigger the warning light, as it may no longer be able to hold a charge effectively, causing the voltage to drop below the acceptable threshold. In some cases, the battery warning light may be accompanied by other symptoms, such as dimming headlights, a decrease in electrical power, or difficulty starting the engine. When the battery warning light comes on, it's important to address it promptly to prevent further damage to the charging system and avoid being stranded with a dead battery. Ignoring this warning can lead to more costly repairs down the road.

Electrical Issues

Electrical issues in your 2017 Ford Explorer can sometimes be traced back to battery-related problems. The battery serves as the heart of the vehicle's electrical system, providing the necessary power for various components to function correctly. When the battery is weak or failing, it can lead to a range of electrical issues. One common symptom is erratic behavior in the electrical system, such as flickering lights, malfunctioning power windows, or a radio that cuts in and out. These issues can occur because the battery is not providing a stable and consistent power supply. Another potential problem is issues with the vehicle's computer system. Modern vehicles rely heavily on computers to control various functions, and these computers require a stable power source to operate correctly. A weak battery can cause these computers to malfunction, leading to a variety of problems, such as error messages, performance issues, or even the vehicle failing to start. Diagnosing electrical issues related to the battery can be challenging, as the symptoms can be similar to those caused by other electrical problems. However, if you're experiencing multiple electrical issues, it's worth considering the battery as a potential cause. Checking the battery's voltage and having it tested by a professional can help determine if it's contributing to the problem. In some cases, replacing the battery may be necessary to resolve the electrical issues.

Diagnosing the Battery Problem

Battery Load Test

A battery load test is a crucial diagnostic procedure to assess the health and performance of your 2017 Ford Explorer's battery. This test applies a significant electrical load to the battery while monitoring its voltage. By observing how the battery's voltage responds under load, technicians can determine its ability to deliver sufficient power. A healthy battery should maintain a voltage above a certain threshold during the load test. If the voltage drops too low, it indicates that the battery is weak and may not be able to hold a charge effectively. Load tests are typically performed using specialized equipment that applies a controlled load and measures the voltage. These testers often provide a pass or fail result, making it easy to determine if the battery needs to be replaced. It's important to note that a battery load test is different from a simple voltage test. A voltage test only measures the battery's voltage at rest, which may not reveal its true condition. A load test, on the other hand, simulates real-world conditions by placing a demand on the battery. Performing a battery load test is a relatively quick and inexpensive procedure, and it can save you from being stranded with a dead battery. If you're experiencing battery issues, such as frequent dead batteries or difficulty starting the engine, a load test should be one of the first steps in diagnosing the problem. Regular battery load tests are also recommended as part of routine maintenance to ensure your battery is in good condition.

Checking for Parasitic Drain

Parasitic drain refers to the unwanted consumption of electrical power from your 2017 Ford Explorer's battery when the vehicle is turned off. Identifying and addressing parasitic drain is essential for preventing frequent dead batteries. To check for parasitic drain, you'll need a multimeter and some basic automotive knowledge. First, disconnect the negative battery cable and connect the multimeter in series between the cable and the battery terminal. This will allow you to measure the current flowing from the battery. With the vehicle off and all accessories turned off, the current draw should be minimal, typically less than 50 milliamps. If the current draw is significantly higher, it indicates a parasitic drain. To pinpoint the source of the drain, you can systematically remove fuses one at a time while monitoring the multimeter. When you remove a fuse and the current draw drops, it indicates that the circuit protected by that fuse is the source of the drain. Once you've identified the circuit, you can further investigate the components connected to that circuit to find the specific culprit. Common sources of parasitic drain include faulty modules, aftermarket accessories, and lights that remain on even when the vehicle is off. Addressing parasitic drain can involve repairing or replacing faulty components or disconnecting aftermarket accessories that are drawing excessive power. Regularly checking for parasitic drain can help prevent frequent dead batteries and extend the life of your battery.

Alternator Output Test

An alternator output test is a critical step in diagnosing battery-related issues in your 2017 Ford Explorer. The alternator is responsible for generating electricity to power the vehicle's electrical systems and recharge the battery while the engine is running. If the alternator isn't functioning correctly, it can lead to a variety of problems, including a dead battery. To perform an alternator output test, you'll need a multimeter. Start by connecting the multimeter to the battery terminals and measuring the voltage with the engine off. A fully charged battery should read around 12.6 volts. Next, start the engine and measure the voltage again. With the engine running, the voltage should be higher, typically between 13.5 and 14.5 volts. This indicates that the alternator is charging the battery. If the voltage is below 13.5 volts, it suggests that the alternator is not producing enough power. Another way to test the alternator is to turn on various electrical accessories, such as the headlights, air conditioner, and radio, and observe the voltage. The voltage should remain relatively stable even with these accessories turned on. If the voltage drops significantly, it indicates that the alternator is struggling to keep up with the electrical demand. In some cases, the alternator may produce the correct voltage but still not be able to deliver enough current. An alternator output test can help identify these issues. Regularly testing the alternator output can help prevent battery-related problems and ensure that your vehicle's electrical systems are functioning correctly.

Solutions for 2017 Ford Explorer Battery Issues

Battery Replacement

If your 2017 Ford Explorer's battery is consistently failing load tests or is more than a few years old, battery replacement may be the most practical solution. Over time, batteries degrade and lose their ability to hold a charge effectively, especially in extreme temperatures. When selecting a replacement battery, it's crucial to choose one that meets or exceeds the original equipment manufacturer (OEM) specifications for your Explorer. This ensures that the battery provides the necessary power and fits properly in the battery tray. It's also important to consider the battery's cold-cranking amps (CCA) rating, which indicates its ability to start the engine in cold weather. A higher CCA rating is generally better, especially if you live in a cold climate. Battery replacement is a relatively straightforward procedure that can be performed by a qualified mechanic or a DIY enthusiast with the proper tools and knowledge. Before replacing the battery, it's a good idea to clean the battery terminals and inspect the battery cables for corrosion or damage. Corroded or damaged cables can impede the flow of electricity and prevent the battery from charging properly. When installing the new battery, be sure to connect the cables correctly and tighten the terminals securely. Properly disposing of the old battery is also important, as it contains hazardous materials. Many auto parts stores offer free battery recycling services. Replacing a weak or failing battery can significantly improve your Explorer's performance and reliability.

Repairing or Replacing the Alternator

When the alternator is identified as the source of battery problems in your 2017 Ford Explorer, repairing or replacing the alternator becomes necessary. The alternator is a vital component of the vehicle's charging system, responsible for generating electricity to power the electrical systems and recharge the battery while the engine is running. If the alternator is failing, it can lead to a variety of issues, including a dead battery, dimming headlights, and a decrease in electrical power. In some cases, the alternator may be repairable. Common repairs include replacing the voltage regulator, brushes, or bearings. However, if the alternator is severely damaged or has a high number of miles, replacement may be the more cost-effective option. When selecting a replacement alternator, it's crucial to choose one that meets or exceeds the OEM specifications for your Explorer. This ensures that the alternator provides the correct voltage and current output. Replacing the alternator is a more complex procedure than replacing the battery, and it typically requires specialized tools and knowledge. It's often best left to a qualified mechanic. Before replacing the alternator, it's a good idea to inspect the serpentine belt and the alternator pulley for wear or damage. A worn or damaged belt or pulley can cause the alternator to fail prematurely. Replacing a faulty alternator can restore your Explorer's charging system to proper working order and prevent future battery problems.

Addressing Parasitic Drain

Locating and addressing parasitic drain is crucial for resolving battery issues in your 2017 Ford Explorer, especially if you frequently experience a dead battery. Addressing parasitic drain requires a systematic approach to identify the source of the unwanted electrical draw. Start by performing a parasitic drain test using a multimeter, as described earlier. This will help you determine if there is indeed a parasitic drain and how much current is being drawn. Once you've confirmed the presence of a parasitic drain, you can begin to isolate the circuit responsible. Systematically remove fuses one at a time while monitoring the multimeter. When you remove a fuse and the current draw drops, it indicates that the circuit protected by that fuse is the source of the drain. After identifying the circuit, you can further investigate the components connected to that circuit to find the specific culprit. Common causes of parasitic drain include faulty modules, aftermarket accessories, and lights that remain on even when the vehicle is off. Addressing parasitic drain can involve repairing or replacing faulty components or disconnecting aftermarket accessories that are drawing excessive power. In some cases, the cause of the drain may be difficult to pinpoint, and it may require the expertise of a qualified mechanic. Regularly checking for parasitic drain can help prevent frequent dead batteries and extend the life of your battery. Additionally, be mindful of leaving accessories plugged in or lights on when the vehicle is not in use. By addressing parasitic drain, you can ensure that your Explorer's battery remains charged and ready to go.

Preventive Maintenance Tips

Regular Battery Checkups

Regular battery checkups are an essential part of preventive maintenance for your 2017 Ford Explorer. These checkups can help identify potential battery problems before they lead to a dead battery or other electrical issues. A simple way to check your battery is to use a multimeter to measure the voltage. A fully charged battery should read around 12.6 volts with the engine off. If the voltage is significantly lower, it may indicate that the battery is weak or not being charged properly. Another important aspect of battery checkups is inspecting the battery terminals and cables for corrosion. Corrosion can impede the flow of electricity and prevent the battery from charging effectively. Clean the terminals with a battery terminal cleaner and a wire brush to remove any corrosion. Also, inspect the battery cables for damage or wear, and replace them if necessary. In addition to visual inspections, it's also a good idea to have your battery load tested periodically. A load test can reveal the battery's ability to deliver power under load, which is a more accurate assessment of its health than a simple voltage test. Regular battery checkups can help you catch potential problems early and take corrective action before they lead to more serious issues. They can also extend the life of your battery and prevent you from being stranded with a dead battery.

Keeping Terminals Clean

Keeping the battery terminals clean is a simple but crucial step in maintaining your 2017 Ford Explorer's battery and electrical system. Corrosion can build up on the battery terminals over time, impeding the flow of electricity and preventing the battery from charging effectively. This can lead to a variety of problems, including a dead battery, difficulty starting the engine, and dimming headlights. Cleaning the battery terminals is a relatively easy process that can be done with a few basic tools and supplies. You'll need a battery terminal cleaner, a wire brush, and some safety glasses. Before cleaning the terminals, disconnect the negative battery cable to prevent electrical shock. Then, spray the terminals with battery terminal cleaner and use the wire brush to scrub away any corrosion. Be sure to clean both the terminals on the battery and the connectors on the battery cables. After cleaning, rinse the terminals with water and dry them thoroughly. Finally, reconnect the negative battery cable and apply a corrosion protectant to the terminals to help prevent future corrosion. Regularly cleaning the battery terminals can help ensure a good electrical connection and prevent battery problems. It's a good idea to clean the terminals at least twice a year, or more often if you live in an area with a lot of humidity or salt air.

Avoiding Short Trips

Avoiding frequent short trips can help extend the life of your 2017 Ford Explorer's battery. Short trips can be particularly detrimental to battery health because the alternator may not have enough time to fully recharge the battery after starting the engine. Starting the engine requires a significant amount of power from the battery, and if the alternator doesn't have enough time to replenish that power, the battery can gradually become depleted. Over time, this can lead to sulfation, a process where lead sulfate crystals build up on the battery plates, reducing their ability to hold a charge. Sulfation is a major cause of battery failure. To avoid the negative effects of short trips, try to combine errands or take longer routes when possible. This will give the alternator more time to recharge the battery. If you frequently drive short distances, you may also want to consider using a battery maintainer or trickle charger to keep the battery fully charged. A battery maintainer can help prevent sulfation and extend the life of your battery. By avoiding short trips and taking other preventive measures, you can help ensure that your Explorer's battery remains in good condition for longer.

By understanding these common issues, diagnostic steps, and solutions, you can keep your 2017 Ford Explorer running smoothly and avoid those frustrating battery-related headaches. Safe driving, folks!