Every two years, Connecticut mandates a vehicle emissions test for all drivers. While it may come as a surprise if your car doesn’t pass, there are often warning signs that can point to issues with the emission system.
The emissions system is designed to reduce harmful pollutants released into the air, while also helping to improve fuel efficiency and engine performance. It includes components such as the fuel tank, carburetor, exhaust system, and crankcase. Modern vehicles typically have an Evaporative Emission Control (EVAP) system, which captures and burns harmful gases before they escape into the atmosphere. Key parts of the EVAP system include:
- A vapor recirculation tube
- A vapor control valve
- An evaporative emission canister
- A fuel tank pressure sensor
- A canister vent valve
- A purge valve for the evaporative canister
- A two-way evaporative valve
Controlling emissions not only protects the environment but also helps safeguard public health. Ignoring these issues can lead to higher rates of respiratory problems like asthma and even carbon monoxide poisoning in communities.
If you notice any of the following signs, your vehicle might be experiencing an emissions problem:
**Check Engine Light**
Though not always specific, the check engine light can signal an issue with the emissions system. It could indicate a faulty sensor, a leak, or another malfunction that allows harmful gases to escape.
**Decreased Performance**
You may feel your car isn’t running as smoothly as before. The emissions system works closely with the engine and exhaust, so issues here can lead to reduced power or poor fuel economy.
**Declining Fuel Economy**
A sudden drop in miles per gallon or faster gas consumption could mean a leak in the system—such as in the carburetor, muffler, exhaust manifold, or fuel tank.
**Strange Smells**
Unusual odors from the exhaust, especially a strong fuel smell, can be a sign of a leak. This smell may linger even when the car is off, and it’s important to act quickly due to the flammability of gas vapors.
**Leaking Fuel Tank**
If your car recently failed an emissions test, it’s worth checking for leaks. A damaged or clogged EVAP canister can cause the fuel tank to collapse, affecting system performance.
If you're experiencing any of these symptoms, it's best to have your emissions system inspected and repaired as soon as possible. At DaSilva’s Auto Body, we specialize in emissions testing and repairs. Contact our Naugatuck location today to schedule an appointment and keep your vehicle running safely and efficiently.
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