2015 Ford Expedition Won't Start

Common Causes for Your 2015 Ford Expedition Not Starting and How to Resolve Them

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
38% chance it's the
Battery
0%
27% chance it's the
Alternator
0%
20% chance it's the
Starter
0%
15% chance it's
Something else
The most common reasons a 2015 Ford Expedition won't start are a dead battery, an alternator problem, or failed starter.
  • Battery: A weak or failing battery can result in difficulty starting the engine and electrical system malfunctions due to insufficient power supply.
  • Alternator: A failing alternator can result in insufficient electrical power to the vehicle, leading to battery drain and electrical system malfunctions.
  • Starter: A faulty starter motor or a weak battery can prevent the engine from cranking properly, leading to starting issues.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

What are the initial diagnostic steps to take when a 2015 Ford Expedition won't start?

When your 2015 Ford Expedition won't start, it's essential to adopt a systematic diagnostic approach to identify the underlying issue. Begin with a thorough visual inspection of the vehicle, checking for any visible damage such as loose battery cables or a cracked starter. This initial step can often reveal simple problems that are easy to fix. Next, connect a diagnostic tool to the OBDII connector located under the dashboard; this will help you retrieve any error codes that can point you in the right direction. As you analyze the situation, focus on determining which system is failing, whether it's the battery, alternator, or starter. Pay attention to signs like dim interior lights, which may indicate battery issues. Additionally, inspect the battery cables for any signs of wear or damage, as faulty connections can prevent the vehicle from starting. By following these steps, you can effectively troubleshoot the starting issue and potentially resolve it without needing professional assistance.

What are the common problems that could cause a 2015 Ford Expedition to not start?

When your 2015 Ford Expedition refuses to start, it can be frustrating, but understanding the common problems can help you diagnose the issue. One of the first things to check is the battery; a dead battery is often the primary culprit, especially if the vehicle has been sitting unused for a while. If the battery is not the issue, inspect the battery terminals for corrosion, as this can impede the electrical connection necessary for starting. Additionally, consider the key fob; a dead battery in the fob can prevent the vehicle from recognizing the key, leading to starting problems. If these components are functioning properly, the next step is to examine the alternator and starter, as failures in these parts can also prevent the engine from cranking. Lastly, keep an eye out for other electrical issues, such as faulty wiring or a malfunctioning ignition switch, which can complicate the starting process. By systematically checking these areas, you can identify and resolve the starting issues, getting your Ford Expedition back on the road with minimal hassle.

How urgent is it to address the starting issue in a 2015 Ford Expedition?

Addressing a starting issue in a 2015 Ford Expedition is crucial and should be treated with urgency. Ignoring these symptoms can lead to significant inconveniences, such as being stranded or unable to start your vehicle when needed. More importantly, unresolved starting problems may indicate deeper mechanical issues that could escalate over time, potentially resulting in costly repairs or even safety hazards on the road. For instance, a failing battery, faulty starter, or issues with the ignition system can not only prevent your vehicle from starting but may also compromise its overall reliability. Therefore, it is highly advisable to diagnose and repair any starting issues as soon as they arise, ensuring that your Ford Expedition remains safe and dependable for your journeys. Taking prompt action not only protects your investment but also enhances your peace of mind while driving.

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