Common Reasons Cars Fail Emissions Tests

Posted on: April 9, 2019, by :

Emissions tests protect the environment and ensure that your car is operating at peak efficiency. There are a number of issues that can cause your car to fail an emissions test, however. Below are some common issues that may be behind a failed test.

Image result for Common Reasons <a rel=Cars Fail Emissions Tests” width=”600″ height=”338″ />

Leaking Exhaust

When working properly, the catalytic converter filters the exhaust to reduce pollutants and toxicity. Leaking exhaust isn’t filtered and contains high levels of toxic pollutants. Scientists say pollutants like this will affect the atmosphere for thousands of years. Getting this emissions repair Lynnwood should allow you to pass the test and may even make your car run more silently, give you better fuel economy and provide a gentler ride.

Rich Air and Fuel Mixture

There’s a certain amount of fuel and air that get mixed together in your engine. If your fuel injector or engine control unit are malfunctioning, they can put too much fuel into the mixture. As a result, your car may burn too much fuel—costing you money and possibly causing you to fail the emissions test.

Check Engine Light

Something as simple as having the check engine light on can cause you to fail your emissions test. Often the light is only indicating a small, easy to fix problem; it’s smart to have it checked out before your emissions test to ensure you’ll pass and to give you peace of mind.

Bad Spark Plugs

This can cause a lot of issues for your car, including a struggling to get the car to start, poor acceleration, idling rough and bad gas mileage. Along with causing your car to behave erratically, this will cause you to fail your emissions test. It’s a smart idea to regularly check your spark plugs and replace them as soon as they need it.

Emissions tests are a way that everyone can contribute to reducing their carbon footprint. Although fixing many of these problems are necessary to drive your car legally, they’ll also save you money in the long run by improving your gas mileage and lengthening the life of your car.