2018 Ford Fusion Won't Start

Common Causes for Your 2018 Ford Fusion 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 2018 Ford Fusion 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.
  • Alternator: A failing alternator can result in insufficient electrical power, 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 2018 Ford Fusion won't start?

When your 2018 Ford Fusion refuses to start, it's essential to approach the problem methodically to identify the root cause. Begin by checking the battery, as a weak or dead battery is often the primary culprit behind starting issues. If the battery is functioning well, turn your attention to the starter motor, which can fail and prevent the engine from cranking. Next, verify that there is sufficient fuel in the tank, as running out of gas is a common oversight. If fuel levels are adequate, inspect the ignition system, including spark plugs and ignition coils, since faulty components here can hinder the starting process. Additionally, using a diagnostic scanner to check for error codes can provide insights into any electronic issues that may be affecting the vehicle. Finally, examine the fuel system for potential problems, such as a clogged fuel filter or a malfunctioning fuel pump, which can also prevent the engine from starting. By following these steps in order, you can effectively diagnose and address the starting issues with your Ford Fusion.

What are the common problems that could cause a 2018 Ford Fusion to not start?

When your 2018 Ford Fusion refuses to start, it can be frustrating, but understanding the common problems can help you troubleshoot effectively. One of the first things to check is the battery; a dead or weak battery is often the culprit, especially if the vehicle shows no signs of electrical activity. If the battery is functioning, the next step is to inspect the starter motor, as a faulty starter can prevent the engine from turning over. Additionally, issues within the fuel system, such as a clogged fuel filter or a malfunctioning fuel pump, can hinder fuel delivery, making it impossible for the engine to start. Don't overlook the ignition switch, as a malfunction here can disrupt the starting process. If the alternator is not charging the battery properly, it may lead to starting issues or cause the engine to stall shortly after starting. Furthermore, worn or faulty spark plugs can impede the ignition process, while problems with the car's security system, like an immobilizer malfunction, can also prevent the engine from starting. Lastly, a broken timing belt can throw off the engine's timing, making it impossible to start. By systematically checking these components, you can identify the issue and take the necessary steps to get your Ford Fusion back on the road.

How urgent is it to address the starting issue in a 2018 Ford Fusion?

When dealing with a starting issue in a 2018 Ford Fusion, it is crucial to assess the urgency of the situation. If the vehicle fails to start consistently or presents alarming symptoms such as unusual noises or smoke, these could be indicators of a serious underlying problem that requires immediate attention. Safety should always be a priority; a malfunctioning starting system can jeopardize the safety of both the driver and passengers, making it essential to address these issues without delay. Additionally, neglecting a starting problem can lead to further damage to the vehicle, resulting in more extensive and costly repairs down the line. By addressing the starting issue promptly, you not only enhance the reliability and convenience of your vehicle for daily use but also safeguard against potential hazards. Therefore, it is advisable to take any starting issues seriously and seek resolution as soon as possible to ensure the continued safety and functionality of your Ford Fusion.

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