2016 Lincoln Navigator Smells Like Gas

Addressing Gas Smells in Your 2016 Lincoln Navigator

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Reviewed by
Bo Fader
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 Navigator 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 Navigator 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.

A failing catalytic converter can cause a vehicle to fail emissions tests and turn on the check engine light. The exhaust might have an unusual smell. A restricted catalytic converter can result in a loss of engine power.

» LEARN MORE: How to tell if your catalytic converter is failing

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 steps should I take to diagnose the gas smell in my 2016 Lincoln Navigator?

To effectively diagnose the gas smell in your 2016 Lincoln Navigator, start with a thorough visual inspection of the vehicle. Begin by checking for any visible leaks beneath the vehicle and in the engine bay, as these are often the most straightforward indicators of a problem. Next, inspect the fuel lines and connections for any signs of wear or looseness, as damaged fittings can lead to fuel vapors escaping. Don’t overlook the fuel tank itself; any signs of damage or leaks here could be the source of the odor. Additionally, consider the condition of the fuel injector, as a malfunctioning injector can also contribute to a gas smell. It’s wise to check the evaporative emissions control system, as issues here can lead to similar symptoms. Ensure that the fuel cap is secure and in good condition, as a loose or damaged cap can allow gasoline vapors to escape. Finally, keep in mind that other factors, such as a flooded engine or a rich fuel mixture, may also be at play. By systematically addressing these areas, you can effectively identify and resolve the source of the gas smell in your vehicle.

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

If you're detecting a gas smell in your 2016 Lincoln Navigator, it's crucial to understand the common problems that could be at play. One of the primary culprits is a fuel leak, which can stem from damaged fuel lines, faulty fuel injectors, or issues with the fuel tank itself. Addressing a fuel leak is vital not only for your vehicle's performance but also for your safety, as it poses a fire hazard. Another potential issue could be a faulty fuel cap; if it's loose, damaged, or missing, it can allow fuel vapors to escape, leading to that unmistakable gas odor. Additionally, problems with the evaporative emissions system, which manages fuel vapor release, may also be responsible. Components like the charcoal canister or purge valve can fail, resulting in fuel smells inside the cabin. Don't overlook the possibility of an exhaust system leak, particularly near the engine compartment, which can mimic a gas smell due to cracks or damage in the exhaust manifold or pipes. Lastly, overfilling the fuel tank can cause fuel to spill, creating a strong odor. For those inclined to DIY, start by inspecting these areas, but remember that if the problem persists, consulting a qualified mechanic is the best course of action to ensure your vehicle remains safe and functional.

How urgent is it to address a gas smell in a 2016 Lincoln Navigator?

Addressing a gas smell in your 2016 Lincoln Navigator is not just a matter of convenience; it is a pressing safety concern that requires immediate attention. Gas leaks can lead to catastrophic fire hazards, endangering both the vehicle and its occupants. Moreover, the inhalation of gas fumes poses serious health risks, including dizziness, headaches, and nausea, which can impair your ability to drive safely. Ignoring this warning sign can also result in further damage to your vehicle's components, leading to expensive repairs down the line. Therefore, if you notice a gas smell, it is crucial to act swiftly by consulting a professional mechanic who can accurately diagnose and resolve the issue, ensuring your safety and the longevity of your vehicle.

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