2016 Lincoln MKS Smells Like Gas

Diagnosing Fuel Odor Issues in Your 2016 Lincoln MKS and Essential Safety Precautions

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Reviewed by
Andrew Hajjar
Written by RepairPal Car Genius
Updated January 14, 2025
0%
15% chance it's the
Gas Cap
0%
40% chance it's the
Emissions Control System
0%
45% chance it's
Something else
The most common reasons a 2016 Lincoln MKS smells like gas are the gas cap, the fuel system, or the emissions control system.
  • Gas Cap: A loose or damaged gas cap can cause fuel vapors to escape, triggering the check engine light and potentially affecting fuel system pressure.
  • Emissions Control System: A faulty emissions control system can lead to increased hydrocarbon emissions and trigger the check engine light due to malfunctioning components like the EGR valve or O2 sensors.
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 2016 Lincoln MKS smells like gas?

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.

The check engine light will illuminate any time there is a failed EVAP system test. This will be indicated by the various on-board diagnostics trouble codes that are stored in the vehicle's memory. Also, in some models, there may be a popping sound accompanying the check engine light, as the leak detection pump continuously attempts to pressurize the fuel tank. The canister may also cause difficulty starting the engine, a rough idle, and poor fuel mileage.

The check engine light will illuminate any time there is a failed EVAP system test. This will be indicated by the various on-board diagnostics trouble codes that are stored in the vehicle's memory. Also, in some models, there may be a popping sound accompanying the check engine light, as the leak detection pump continuously attempts to pressurize the fuel tank. A fuel tank leak may also cause difficulty starting the engine, a rough idle, and poor fuel mileage. When a fuel tank is simply corroded to the point of failure, the exterior tank condition rarely shows damage. The inside of the fuel tank will be rusted or corroded, and rust flakes or other debris may be floating in the fuel.

For most vehicles, the only symptom will be a check engine light or fuel tank filler cap light illuminating on the driver instrument cluster. This is to signal that there is an evaporative emissions (EVAP) leak. In some situations, the vehicle may take longer than normal to start, or, more rarely, the engine may not start at all. on-board diagnostic (OBD) trouble codes will refer to EVAP system failures such as a small or massive EVAP system leak. Lastly, the powertrain control module may notice a lean running condition, which could even lead to random and infrequent misfires.

What are the potential causes and diagnostic steps for a gas smell in a 2016 Lincoln MKS?

When dealing with a gas smell in your 2016 Lincoln MKS, it's essential to approach the diagnosis methodically, starting with the simplest solutions before moving on to more complex issues. Begin by checking for visible fuel leaks around the vehicle, particularly under the car and near the engine, as this can often be the most straightforward cause. Next, inspect the gas cap to ensure it is properly sealed; a loose or damaged cap can easily allow gas fumes to escape. If these initial checks do not resolve the issue, consider examining the fuel injectors for any signs of malfunction or leakage, as faulty injectors can contribute to a gas odor. Additionally, scanning the vehicle for error codes can provide insights into any underlying problems with the fuel system. If necessary, delve deeper into the evaporative emissions system and exhaust system, as leaks in these areas can also lead to a gas smell. By following this structured diagnostic approach, you can effectively identify and address the source of the gas odor in your vehicle.

What could be causing a gas smell in my 2016 Lincoln MKS?

If you're detecting a gas smell in your 2016 Lincoln MKS, it's crucial to understand the potential causes to address the issue effectively. One of the most common culprits is a fuel system leak, which could stem from a damaged fuel tank or a malfunctioning EVAP system that fails to contain gas vapors. Additionally, it's important to consider that other fluids, such as oil or transmission fluid, may be leaking onto hot engine components, producing a burning odor that can be mistaken for gasoline. Inspecting the fuel filler tube and surrounding areas is also essential, as any damage or wear can lead to fuel vapor escaping. Don't overlook the gas cap; ensuring it is in good condition and tightly sealed can prevent fuel odors. Given the safety risks associated with gas leaks, it's advisable to address these concerns promptly, and if the source of the smell remains unclear, consulting a qualified mechanic for a thorough inspection is the best course of action.

How urgent is it to address the gas smell in my 2016 Lincoln MKS?

Addressing a gas smell in your 2016 Lincoln MKS is not just a matter of comfort; it is a pressing safety concern that requires immediate attention. Ignoring the smell of gasoline can lead to severe consequences, including the risk of fire or explosion due to a potential fuel leak. These leaks can often be hidden within the engine bay or undercarriage, making them difficult to detect without proper inspection. If you notice a gas odor, especially if you haven't recently refueled, it is crucial to act quickly. Common signs of a fuel system issue include the smell of fuel vapor near the fuel tank or filler tube, which indicates a malfunction that could compromise your safety. Regular maintenance of your fuel system is essential to prevent such odors, as problems like a faulty fuel pump or clogged filter can contribute to gas smells. Therefore, if you detect a gas smell, consider conducting a thorough inspection or consulting a qualified mechanic to diagnose and resolve the issue promptly, ensuring your vehicle remains safe and reliable.

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2016 Lincoln MKS: Why It Smells Like Gas & Solutions