2015 Lincoln MKS Won't Start

Common Causes for Your 2015 Lincoln MKS 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 2015 Lincoln MKS 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 for a 2015 Lincoln MKS that won't start?

When faced with a 2015 Lincoln MKS that won't start, it's essential to adopt a systematic diagnostic approach to identify the root cause of the issue. Begin by checking the battery, as a weak or dead battery is often the simplest explanation for starting problems. Ensure the battery terminals are clean and securely connected. Next, verify the fuel level in the tank; sometimes, a low fuel level can lead to starting difficulties. If these initial checks do not resolve the issue, inspect the ignition system, particularly the ignition switch, as a malfunction here can prevent the engine from starting. Utilizing an OBD-II scanner to scan for error codes can provide valuable insights into any underlying problems. If no codes are present, examine the starter motor to ensure it is functioning correctly, as a faulty starter can hinder the engine from turning over. Finally, assess the fuel system, particularly the fuel pump, to confirm it is delivering fuel to the engine. By following this structured approach, you can effectively narrow down the potential causes of the starting issue and take the necessary steps to resolve it.

What are the common problems that could cause a 2015 Lincoln MKS to not start?

When troubleshooting a 2015 Lincoln MKS that won't start, it's essential to consider several common problems that could be at play. A dead battery is often the first suspect, as it can prevent the vehicle from starting if it lacks sufficient charge. If the battery is functional, the next area to investigate is the alternator, which is responsible for recharging the battery while the engine runs; a malfunctioning alternator can lead to a dead battery and starting issues. Additionally, a failed starter can stop the engine from cranking altogether, necessitating repair or replacement. It's also crucial to examine the battery cables for any signs of corrosion or damage, as faulty connections can disrupt the electrical flow. Corrosion on battery terminals can further exacerbate starting problems, so regular cleaning and inspection are advisable. Moreover, ensure that ground connections are secure and free from corrosion, as a bad ground can lead to flickering dashboard lights and starting failures. Lastly, check the electrical connections at the starter; poor connections can result in clicking noises without the engine cranking. By systematically addressing these potential issues, you can effectively diagnose and resolve starting problems with your Lincoln MKS.

How urgent is it to diagnose and fix the starting issue in a 2015 Lincoln MKS that won't start?

When your 2015 Lincoln MKS won't start, the urgency to diagnose and fix the issue cannot be overstated. Delaying attention to this problem can lead to further complications, such as damage to the battery, starter, or ignition system, which may result in more expensive repairs down the line. Additionally, a vehicle that fails to start unexpectedly can create safety hazards, especially if it occurs in a precarious location or during adverse weather conditions. The inconvenience of a non-starting car can disrupt your daily life, making it essential to address the issue promptly. By diagnosing the problem early, you can identify the root cause and implement a solution, minimizing downtime and restoring your vehicle's reliability. Ultimately, taking swift action not only ensures your safety but also provides peace of mind, knowing that your Lincoln MKS is ready for the road.

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