Is It Safe to Drive With the Emissions Light On?

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There is really no hard and fast answer to this question. It really all depends on what made the Emissions Light come on in the first place, and what you consider to be “safe.” Your emissions control reduces the amount of toxins that your vehicle delivers into the environment. So if you are concerned about your carbon footprint, you may consider the glowing Emissions Control Light to be very important.

Sometimes the Emissions Light can come on in conjunction with the Check Engine Light, and the car will still run properly – really, the only problem with the Emissions Light coming on is simply that the Emissions Light has come on. What you need to do is find out why it came on in the first place. There are certain things that you are going to have to watch out for:

  • If the car is running smoothly, and showing no problems other than the Emissions Light coming on, the problem could be with the sensor that triggers the light.

  • Most of the time, when an Emissions Light comes on, it is due to either a sensor or a problem with the exhaust gas recirculation valve.

  • It is also possible that you have a vacuum hose that has become disconnected, or has developed cracks.

So, is it safe to drive with the Emissions Control Light on? Yes, as long as it is the only light that has come on, you do not have to worry about your safety. However, you should still find out what is causing the problem, and then have it fixed. The best way to determine the cause is to have a qualified mechanic connect your vehicle’s diagnostic connector link to a code reader in order to determine what is causing the light to come on and stay on.


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YourMechanic Warning Light is on Inspection Service

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Number of Reviews

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Matthew

32 years of experience
704 reviews
Matthew
32 years of experience
Chevrolet Impala - Warning Light is on - Norfolk, Virginia
First off he was on time....actually 30 mins early which was great. Everything he described was what I was going through and he knew exactly what I needed before he even looked at the car. Other mechanics i feel were trying to take advantage because I am a woman but he made me feel comfortable. Still have to get work done on it but at least I know exactly what the problem was.
Chevrolet Tahoe - Warning Light is on - Norfolk, Virginia
Very detailed and takes the time to explain what is being done. Willing to answer any questions you may have. I would definitely use his services again and have already been telling my coworkers about this site. I have a unique electrical situation going on with my truck that none of the dealers could assess. Just by Matt doing some general maintenance , my truck is already driving smoother. Matt asked that I monitor things to make sure we don't need to troubleshoot anything else. I feel quite confident.

Quentin

18 years of experience
13 reviews
Quentin
18 years of experience
Volkswagen Tiguan - Warning Light is on - Nottingham, Maryland
Quentin was very professional and meticulous with locating the issues with my car. Great spirit and explained and answered all of my questions.

Travis

12 years of experience
69 reviews
Travis
12 years of experience
Mercedes-Benz C230 - Warning Light is on - Charlotte, North Carolina
Travis came out to determine cause for the Check Engine light. He did so and told me what needed to be done and the cost.

Juan

8 years of experience
50 reviews
Juan
8 years of experience
Suzuki Grand Vitara - Warning Light is on - Durham, North Carolina
I won't go into details about the actual work performed - the result was completely satisfactory. Juan is knowledgeable about how these computerized engines work . He's very personable, polite, patient with my questions, and when I need service again, I'll request Juan. He put in more time than originally scheduled and seems to want to see things through and honest enough to tell you if the job is beyond his expertise and suggests taking car to dealer for more extensive diagnostic tests. I am well pleased.

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