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
To effectively diagnose a gas smell in your 2016 Chevrolet Equinox, start with a thorough visual inspection of the fuel system. Look for any signs of leaks or damage, particularly under the vehicle and around the fuel tank, as these are common culprits. Next, check the gas cap to ensure it is tightly sealed; a loose or damaged cap can easily lead to fuel odors. If the smell persists, inspect the cooling system, especially if you notice a burnt smell from the engine or a high thermostat reading, as these could indicate a related issue. Additionally, conduct auditory and visual tests on the fuel pump to assess its condition, and consider scanning for error codes if you suspect problems with the fuel pump control module. Finally, pay attention to any unusually strong fuel smells, as these may signal a more serious problem that requires immediate attention. By following this structured approach, you can systematically identify and address the source of the gas smell in your vehicle.
When you detect a gas smell in your 2016 Chevrolet Equinox, it’s crucial to understand the common problems that could be at play. One of the primary culprits is fuel leaks, which can occur due to damaged fuel lines or faulty fuel injectors, leading to a noticeable odor. Additionally, issues with the evaporative emissions system, such as a malfunctioning charcoal canister or purge valve, can also contribute to the smell. Another frequent cause is a faulty fuel cap; if it’s loose, damaged, or missing, fuel vapors can escape, creating an unpleasant odor inside the cabin. Furthermore, exhaust system leaks, which may arise from a cracked manifold or damaged gaskets, can result in gas odors as well. Lastly, engine-related issues, including a malfunctioning fuel pressure regulator or leaking fuel injectors, can exacerbate the problem. If you encounter this issue, it’s advisable to conduct a thorough inspection of these components to pinpoint the source of the smell and ensure your vehicle remains safe and functional.
Addressing a gas smell in your 2016 Chevrolet Equinox is not just a matter of inconvenience; it is a critical safety issue that demands immediate attention. Ignoring this symptom can lead to severe consequences, including the risk of fire due to gasoline leaks, which can occur in hidden areas of the vehicle such as the engine bay or undercarriage. These leaks may not always be visible, as gasoline evaporates quickly, making detection challenging. Common culprits behind the gas smell include issues with the fuel system or a faulty gas cap, both of which require prompt investigation. If your DIY efforts do not uncover the source of the odor, or if the smell persists, it is crucial to seek the expertise of a qualified mechanic. Prioritizing the resolution of a gas smell not only ensures your safety but also helps prevent potential damage to your vehicle, making it an urgent matter that should not be overlooked.

Not sure what's wrong?
Get help from a trusted expert
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.
See what others are asking about their Chevrolet Equinox. Get answers from RepairPal's community of auto experts and enthusiasts.
Read about related problems experienced by other Chevrolet Equinox drivers like you.