2018 Lincoln MKT Won't Start

Common Causes for Your 2018 Lincoln MKT Not Starting and How to Resolve Them

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Reviewed by
Bo Fader
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 Lincoln MKT 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 Lincoln MKT won't start?

When faced with a 2018 Lincoln MKT that won't start, it's essential to adopt a systematic diagnostic approach to identify the root cause effectively. Begin by checking the battery, as a weak or dead battery is often the most straightforward issue to resolve. If the battery is functioning well, the next step is to inspect the starter motor, which can sometimes fail and prevent the engine from cranking. Following this, verify that there is sufficient fuel in the tank, as running out of gas is a common oversight. If fuel levels are adequate, turn your attention to the ignition system, examining components like spark plugs and ignition coils for any faults that could hinder starting. Utilizing a diagnostic scanner can also be beneficial, as it allows you to check for error codes that may indicate specific problems within the vehicle's systems. Additionally, inspect the fuel system for clogs or leaks, as these can disrupt fuel delivery to the engine. Lastly, consider the engine immobilizer system, which can sometimes malfunction and prevent the vehicle from starting. By following this structured approach, you can efficiently diagnose and address the starting issues with your Lincoln MKT.

What are the common problems that could cause a 2018 Lincoln MKT to not start?

When troubleshooting starting issues with a 2018 Lincoln MKT, it's essential to consider several common problems that could be at play. A dead or weak battery is often the first suspect, as it can result from age, extreme weather conditions, or simply leaving the lights on. If the battery is functioning well, the next area to investigate is the starter motor; a malfunction here can prevent the engine from turning over. Additionally, fuel system problems, such as a clogged fuel filter or a faulty fuel pump, can hinder the engine's ability to receive the necessary fuel for ignition. It's also important to check the ignition switch, as a fault in this component can disrupt the electrical system's engagement. If the alternator is not charging the battery effectively, it may lead to insufficient power for starting. Furthermore, issues within the ignition system, like worn spark plugs or a failed ignition coil, can also be culprits. Lastly, a malfunctioning security system may prevent the car from recognizing the key, leading to starting difficulties. By systematically examining these areas, you can identify and address the root cause of the starting problem in your Lincoln MKT.

How urgent is it to address the starting issue in a 2018 Lincoln MKT?

When dealing with starting issues in a 2018 Lincoln MKT, understanding the urgency of the situation is crucial for any DIY enthusiast. If the vehicle exhibits symptoms such as difficulty starting or unexpected stalling, these could pose significant safety risks, especially in emergency situations. Ignoring these signs can lead to dangerous scenarios on the road, making it imperative to address the problem without delay. Additionally, starting issues can disrupt the overall operation of the vehicle, leading to inconvenient breakdowns and the potential for being stranded. A thorough diagnostic assessment is essential to pinpoint the root cause of the problem; some issues may be minor and easily fixable, while others could indicate serious underlying concerns that require immediate attention. Regular maintenance and prompt repairs not only enhance vehicle reliability but also prevent minor issues from escalating into costly repairs. Therefore, for those considering a DIY approach, it is advisable to act swiftly and decisively to ensure both safety and the longevity of the vehicle.

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2018 Lincoln MKT Won't Start? Common Issues & Repair Costs