Signs Your Vehicle Has an Emissions Problem

In Connecticut, all drivers are required to get their vehicles checked for emissions every two years. It can be quite a shock if your car doesn’t pass the test, especially if you’ve been ignoring some warning signs that could suggest trouble with your vehicle's emission system.

Understanding How the Emission System Functions

The emission system is specifically built to reduce the amount of harmful pollutants released into the atmosphere. Besides protecting the environment, it also helps optimize fuel efficiency and ensures smooth engine performance. Modern vehicles often come equipped with an Evaporative Emission Control (EVAP) system, which captures and burns off harmful gases before they escape into the air. Key components of the EVAP system include:

By keeping emissions in check, we’re not only helping the planet but also safeguarding public health. Failing to address these emissions can lead to higher rates of respiratory issues like asthma and even carbon monoxide poisoning in nearby communities.

Recognizing Signs of Emission Problems

If you're facing an issue with your car’s emission system, you might notice one or more of the following indicators.

Check Engine Light

While the check engine light isn’t always specific, its activation can mean there’s a problem with your vehicle's emissions. This light could signal anything from a faulty sensor to a leak in the system, allowing harmful gases to escape.

Poor Performance

As you prepare for the emissions test, you might’ve observed that your car isn’t performing as well as it used to. Since the emission system is connected to the fuel and exhaust systems as well as the engine, you might experience reduced fuel economy or notice that your engine struggles to maintain power.

Reduced Gas Mileage

Your car’s emission system prevents excess gas vapors from being released. If you’re suddenly getting fewer miles per gallon or finding yourself filling up more frequently, it could be a sign of a leak in the system—such as in the carburetor, muffler, exhaust manifold, or fuel tank.

Unusual Exhaust Odor

Another common sign of an emissions issue is detecting a strong smell coming from the exhaust. This could also indicate a fuel leak, and the odor might persist even when the car isn’t running. Given the flammable nature of gas fumes, it’s advisable to have the car towed to a repair shop if you notice this. If the car is kept in a closed space like a garage, avoid opening doors and instead seek emergency assistance.

Fuel Tank Leak

The EVAP control canister can become compromised if it uses a solid cap, especially if it gets clogged or damaged. This can result in leaks and negatively affect your car’s overall performance.

Has your car failed its recent emissions test? If you’re encountering any of the above symptoms, book an inspection with DaSilva’s Auto Body to diagnose and fix the issue with your emission system. Contact our Naugatuck location to set up an appointment today.

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