2018 Lincoln MKX Engine Is Stalling

Common Causes of Engine Stalling in Your 2018 Lincoln MKX and How to Resolve Them

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Reviewed by
Andrew Hajjar
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Fuel System
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15% chance it's the
Air Intake System
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55% chance it's
Something else
The most common reasons a 2018 Lincoln MKX engine is stalling are the fuel system, the air intake system, or the ignition system.
  • Fuel System: A clogged fuel filter or failing fuel pump can restrict fuel flow, resulting in poor engine performance and starting issues.
  • Air Intake System: A dirty or damaged air filter or a malfunctioning mass airflow sensor can restrict airflow, leading to reduced engine performance and efficiency.
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.

How much does it cost to fix a 2018 Lincoln MKX engine is stalling?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

A faulty oxygen sensor is one of the most common causes of a check engine light. Symptoms may include a decrease in fuel mileage, hesitation or misfiring from the engine, rough idling or even stalling. A faulty sensor may cause the vehicle to fail an emissions test.

Any time there is an emissions fault the check engine light will be displayed. The purpose of the check engine light is to inform the driver that an emission related fault has been found, and that there are on-board diagnostic (OBD) trouble codes stored in the powertrain or engine control module. Additionally, since the emissions systems are so intertwined into engine control and transmission control systems, symptoms may include nearly any sort of drivability concerns. This may include harsh shifting, failure to shift, hesitation on acceleration, jerking, engine failure to start or run, loss of power, or any number of other drivability issues.

When the Check Engine Light comes on, you may experience engine performance issues such as poor acceleration, rough idling, or an engine that won't start. In some cases, no abnormal symptoms will be experienced. Other systems like the transmission or ABS can cause the Check Engine Light to illuminate and lights for those systems can come on at the same time. Similar lights may say "Check Engine Soon", "Malfunction Indicator Light" or just "Check". In rare case the engine can overheat.

What are the initial diagnostic steps to take for a stalling issue in a 2018 Lincoln MKX?

When faced with a stalling issue in your 2018 Lincoln MKX, it's essential to adopt a systematic diagnostic approach to identify the root cause effectively. Start by utilizing an OBD-II scanner to check for any error codes stored in the vehicle's computer system, as these codes can provide critical insights into the problem. Next, inspect the fuel system components, including the fuel pump, filter, and injectors, to ensure they are delivering fuel efficiently to the engine. Following this, examine the ignition system by checking the condition of the spark plugs, ignition coils, and cables, as any faults here can lead to stalling. Additionally, assess the air intake system by inspecting the air filter and intake hoses for blockages that may restrict airflow. It's also wise to test the battery and charging system, as a weak battery or malfunctioning alternator can contribute to stalling. Don't overlook the importance of checking for vacuum leaks in the lines and hoses, which can adversely affect engine performance. Finally, verify the throttle body and associated sensors, such as the mass airflow and throttle position sensors, to ensure they are functioning correctly. By following these steps, you can methodically diagnose and address the stalling issue in your Lincoln MKX, empowering you to take control of your vehicle's performance.

What are the common problems that could cause the engine to stall in a 2018 Lincoln MKX?

When dealing with engine stalling issues in a 2018 Lincoln MKX, it's essential to understand the common problems that may be at play. One of the primary culprits is the fuel system, where a clogged fuel filter or a malfunctioning fuel pump can disrupt the flow of fuel to the engine, leading to stalling. Additionally, the ignition system plays a critical role; failing components such as ignition coils or worn spark plugs can prevent the engine from firing properly. Airflow blockages, often caused by a dirty air filter or a faulty mass airflow sensor, can also hinder the engine's performance by disrupting the necessary air-fuel mixture. Furthermore, electrical problems, including faulty sensors or wiring issues, can create instability in engine operation. Lastly, vacuum leaks can lead to an imbalance in the air-fuel mixture, further contributing to stalling. By regularly inspecting these systems and addressing any issues promptly, DIY enthusiasts can help maintain the performance of their Lincoln MKX and prevent frustrating engine stalling incidents.

How urgent is it to address the engine stalling issue in a 2018 Lincoln MKX?

When it comes to engine stalling in a 2018 Lincoln MKX, the urgency of addressing the issue cannot be overstated. Stalling can lead to a sudden loss of power, which poses significant safety risks, particularly in high-traffic situations or at high speeds. This unexpected behavior can catch drivers off guard, increasing the likelihood of accidents. Moreover, neglecting the stalling symptoms can exacerbate underlying mechanical problems, leading to more severe and costly repairs down the line. By addressing the stalling issue promptly, you not only enhance the vehicle's performance and reliability but also ensure a safer driving experience. Therefore, if you notice any signs of stalling, it is crucial to take immediate action to prevent further complications and safeguard your vehicle's integrity.

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