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Hyundai Elantra Check Engine Light Flashing

Although there are countless potential causes of an illuminated Check Engine Light, we know from years of providing Check Engine Light Diagnosis Service that there are several common causes including something as simple as a loose gas cap. Other common reasons for a Check Engine Light are faulty emissions control part, a malfunction with the fuel injection system, damaged oxygen sensor, faulty head gasket, dirty mass airflow sensor, or defective spark plugs to name a few. No matter what is the root cause of the Check Engine Light, we have the Hyundai Certified Technicians and the certified service protocol to isolate the root problem and repair it as needed to restore factory specifications. When this happens, the Check Engine Light turns off, and you can leave the service center knowing that your Hyundai issue was fixed.

Every Hyundai Elantra was designed with a high-technology performance monitoring system with a computer, and a series of sensors positioned strategically throughout the vehicle on its crucial systems. The sensors are continually detecting conditions while sending data to the electronic control unit. If the electronic control unit detects that the data is out of factory specifications, the Check Engine Light illuminates telling you that there is a problem. However, that is the limitation of the Check Engine Light – it won’t tell you what exactly is wrong nor what to do about it. That’s where we come in; Nalley Hyundai provides a Check Engine Light Diagnosis Service that isolates the core problem and gives you a recommendation on what to do next from a Highly Qualified Service professional.

What could cause the check engine light to come on in a Hyundai Elantra?

When your check engine light comes on, this could be as simple as tightening or replacing your gas cap. Likewise, the check engine light could also be a warning of a serious problem that could cause serious damage to your engine and come with a hefty repair bill. Depending on your make and model, the check engine light will illuminate or blink. A steady glow typically means something less serious but a flashing check engine light indicates that your vehicle’s engine is in serious trouble and service is needed immediately. If your check engine light is flashing in your Hyundai Elantra, we highly recommend not to drive the vehicle and schedule Hyundai service today. Below is a list of the most common reasons your check engine light can come on:

  • Your mass airflow sensor (known as MAF) needs to be replaced. The mass airflow sensor in your Hyundai Elantra is what determines how much fuel is essential to run your engine efficiently by measuring the amount of air entering the engine. As a part of the engine management system, the mass airflow sensor helps adjust to confident changes, like altitude. If your Hyundai Elantra is having trouble starting, idling rough or has a sudden change in the position of the throttle pedal, this could be a sign of a bad mass airflow sensor.
  • One of the most regular and frequent cause is that your Hyundai Elantra gas cap is loose, damaged or missing. The gas cap for your Hyundai Elantra serves multiple purposes. It prevents gas fumes from being released when you aren't driving, it seals the fuel system and helps maintain pressure within the fuel tank. What happens if you have a bad fuel cap? If your gas cap is long-established or has a ruptured seal, you can lose fuel through evaporation which will result in more trips to the pump. Luckily, to replace a gas cap isn't expensive. If your check engine light turns on urgently after you put gas in your Hyundai Elantra, first thing you should check is to make bold the cap isn’t loose — or that it's still on your car’s roof or at the fuel pump.
  • Issues with any aftermarket items. An aftermarket alarm, exhaust or other item can wreak havoc on your Hyundai Elantra if it’s not installed properly. These aftermarket parts and accessories can drain the battery, trigger the check engine light, or even prevent the vehicle from starting. If these issues sound accessible, bring your Elantra to Hyundai and have our squad of certified mechanics ensure that your aftermarket items were installed correctly and aren't causing any issue. Getting accessories, exceptionally aftermarket parts and accessories, or using OEM parts first place might cost a miniscule bit more but could save you money from having to get poor work and damage caused by poor installation work corrected.
  • The battery is low or dead. The battery in you Hyundai Elantra every important. Without a car battery, your car won’t start, light up the road ahead, play the radio or charge your phone. Today’s car batteries last much longer than they did a few decades ago, and they don't really require maintenance. The price of a new one depends on the type of Hyundai you commute, but check our state-of-the-art service coupons and specials.
  • Your Hyundai Elantra has a vacuum leak. Every Hyundai Elantra has a vacuum system that performs a wide assortment of functions. The vacuum system also helps lower harmful emissions by routing the fumes as gasoline evaporates through the engine. If you notice that your RPM is high in idle or randomly surges, a vacuum leak could be the cause. Over time, vacuum hoses can bare out and crack, exceptionally if they’re exposed to extraordinary heat or extreme cold.
  • Your O2 Sensor (Oxygen Sensor) needs to be replaced. The Oxygen sensor, noted as the O2 sensor, measures the amount of oxygen in your exhaust system. If there is excess oxygen in your exhaust system, fuel burns faster and your vehicle will be less capable when it comes to fuel economy. So what happens if I don’t replace your O2 sensor? A faulty sensor can not only affect your miles per gallon, but it can cause damage to your catalytic converter and your Hyundai Elantra's spark plugs. The O2 sensor sends data to the vehicle’s onboard computer to prefer the honorable assortment of air and fuel that enters the cylinders in your engine. A bad O2 sensor can also cause a car to fail an emissions test.
  • Your catalytic converter is bad or going bad. The catalytic converter is a part of your Hyundai Elantra’s exhaust system. The catalytic converter's work is to turn the carbon monoxide created by the combustion process into carbon dioxide. A damaged catalytic converter is usually caused by neglected maintenance, which is why Nalley Hyundai offers a complimentary multi-point inspection with every Hyundai service. If you have an issue with your catalytic converter and don't get it serviced, your Hyundai Elantra will not pass an emissions test, show a lack of engine performance and will negatively affect your fuel economy. Your car may run at a higher temperature, too, which can cause other problems from overheating.
  • New Spark Plugs or Plug Wires are essential for your Hyundai Elantra. The spark plugs are the part of your engine that ignites the air/fuel assortment in the combustion chamber of your vehicle. This explosion is what moves the pistons and makes the engine run. The spark plug wires deliver the spark from the ignition coil to the spark plugs. If you're spark plugs or spark plug wires are bad or long-established, you will experience poor performance and reduced power. In a bit extreme cases, your engine will have trouble starting or continuing to run. Worn spark plugs and plug wires can cause clogged catalytic converter or damage to ignition coils and O2 sensors, finest to more expensive repairs.

Hyundai Elantra Check Engine Light

If the check engine light in your Hyundai Elantra starts flashing, that means that the problem needs sudden attention and your Hyundai should be brought in instantly. A flashing light indicates that the problem is conscientious and if not taken care of instantly may result in colossal damage to the vehicle. This blinking light usually indicates a severe engine misfire allowing unburned fuel to be dumped into the exhaust system. There it can quickly raise the temperature of the catalytic converter to a point where damage is likely, requiring an expensive repair. Some owners ask if spark plugs cause the check engine light to flash? This can absolutely be the cause. A bad, old or dirty spark plug can cause the engine to misfire. If your check engine light is flashing, please contact our team of automotive experts at Nalley Hyundai expeditiously by calling 7709990443. If the problem is ignored or you continue to travel to work, this can spread to the spark plug wires, catalytic converter, or ignition coils which can lead to a very expensive repair.

Hyundai Elantra Check Engine Light Codes

The check engine light turning on can be quite intimidating to see that little light on your vehicle’s dashboard suddenly illuminates, but in reality, it is not something that should cause you to shut down in fear right away. If you hear the term, diagnostic trouble codes (DTC), these are just another name for check engine light codes. These are automotive computer codes stored by the ECM, also known as the OBD (on-board computer diagnostic system) in your Elantra. There are hundreds of different codes that your check engine light can represent. While that sounds daunting, with a little patience, tackling basic diagnostics will give you useful knowledge about your vehicle and will also allow that Check Engine Light to do what it is really supposed to do: be your guide. Unfortunately, obvious and helpful vehicle symptoms do not always accompany an illuminated Check Engine Light. Since there are hundreds of possible OBD codes, there are also hundreds of possible reasons for the light, including:

  • O2 Sensor
  • Bad Spark Plugs
  • Computer output circuit issues
  • Transmission issues
  • Fuel and air metering systems problems
  • Loose Gas Cap or Missing Gas Cap
  • Old Battery
  • Emissions controls issues
  • Ignition system faults
This is why it is important for someone who does not have a lot of automotive knowledge to not assume what a code means. When your check engine light comes on, you should get it checked out instantly by a certified Hyundai mechanic. If the engine light comes on due to a harsh concern, you risk damaging your vehicle further by not repairing the issue correct away. Call Nalley Hyundai at 7709990443 now or schedule your check engine light service online today!

Is it safe to drive your Hyundai Elantra with the check engine light on?

If the check engine light is blinking, this means that there is a conscientious issue and it is recommended to service your Hyundai Elantra suddenly. This question is not very accepted because it all depends on the severity of the issue. If the cause is a minor issue, such as a loose gas cap, it should be secure to drive. This is often indicated by a persistent glow of the check engine light. If you notice a range in the performance of the vehicle, it could be an indication of a more careful problem. Call the consultants at Nalley Hyundai by dialing 7709990443 so you can describe the issues. Or reduce your speed and bring your Hyundai to our certified technicians as soon as likely.

What Does the Check Engine Light Mean?

One of the most commonly misunderstood lights or indicators in your Hyundai Elantra is the check engine light. The check engine light is part of the onboard diagnostics system, and displays in a few different ways. It can say "Check Engine", it can be a symbol of an engine, it can even be a combination of both. This light illuminates in either an amber or red color and is part of the diagnostics system found on your vehicle. Onboard computers increasingly have controlled and monitored vehicle performance since the 80s and do a variety of things for your Hyundai Elantra. Some of these include shifting automatic transmissions controlling engine speed, ignition timing, and implementing stability control, just to name a few. With that being said, the check engine light can mean a variety of different things. It can be as simple as your gas cap being loose or as serious as engine knocking. If your check engine light is on in your Hyundai Elantra, contact Nalley Hyundai. Our Hyundai service department can help you find out what code is turning your check engine light on or scan why your check engine light is shining. Contact Nalley Hyundai today!

Will the check engine light reset itself?

The check engine light on your Hyundai Elantra will usually shut itself off if the issue or code that caused it to turn on is fixed. For example, if the cause of your check engine light coming on was a loose gas cap, if it's tightened, the light will turn itself off. Likewise, if your catalytic converter is going functional, and you did a lot of stop-and-go driving, that may have turned on the check engine light due to the high usage of the converter. In most cases, your Hyundai Elantra light will go off after about 20-40 miles. If you drive over that amount and the light is still on, you will need to bring it in to Nalley Hyundai so the light and code can be double-checked and reset.

How much does it cost to get the engine light checked?

The check engine light warns of issues ranging from a gas cap that's not properly tightened to a more sincere failure like a bad catalytic converter or a problem with one of the car's oxygen sensors, so it confident to get the careful code reading and diagnosis. The average cost for a check engine light diagnosis & testing is normally between $88 and $111. The confident news, Nalley Hyundai offers complimentary multi-point inspections and free diagnostics, in most cases, to help determine the cause of your check engine light.

How many miles can you drive with the check engine light?

Since each check engine code has its own level of severity, it is not exceptional to predict how countless miles you can commute with the warning light on. It could be anything from a bad sensor to plug wires needing to be replaced. If you check engine light is flashing, we advise that you pull over and contact Nalley Hyundai to assist find out if your vehicle is safe to commute in or if we advise a tow truck. The safest bet is to decipher the code and then plan your strategy accordingly.

Check Engine Light Service Hyundai Elantra

What do you do when you’re driving along in your Hyundai Elantra and suddenly, a yellow light illuminates on your dash and says "Check Engine". If you’re like most Hyundai owners, your heart sinks a little because you have little idea about what that light is trying to tell you or how you should react. The fear of the unknown (or the cost of the unknown) can be just as stressful. But take a deep breath and realize the light coming on doesn’t mean you have to pull the car over to the side of the road and call a tow truck, but it is recommended that you get your Hyundai Elantra checked as soon as possible. Ignoring that warning could end up causing major damage to expensive engine components.

When your Hyundai Elantra's ECM (electronic control module), which is the vehicle's onboard computer, finds a problem in the electronic control system that it can’t correct, a computer turns on your check engine light. This amber or yellow light is typically labeled “check engine” or “service engine soon”, or the light may be nothing more than a picture of an engine, or a picture of the engine with the word “check.”

When the light turns on, the ECM stores an engine code or “trouble code” in its memory that identifies as the issue, whether it's a sensor or a failing engine part. This code is read with an electronic scan tool that is used by our Hyundai auto repair mechanics at Nalley Hyundai. There are also a number of relatively inexpensive code readers that are designed for do-it-yourselfers, should you choose that route too. While this code will tell you the issue that is detected, a true diagnosis still requires an experienced professional to determine the issue and repair it.

[hyundai]