2021 Chevrolet Blazer Check Engine Light

Will the check engine light reset itself?

The check engine light on your 2021 Chevrolet Blazer will ordinarily 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 quickly turn itself off. Again, if your catalytic converter is working properly, 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 2021 Chevrolet Blazer 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 Coggin Chevrolet at the Avenues so the light and code can be double-checked and reset.

What could cause the check engine light to come on in a 2021 Chevrolet Blazer?

When your check engine light comes on, this could be as simple as tightening or replacing your gas cap. Still, the check engine light could likewise be a warning of an essential problem that could cause serious damage to your engine and come with a hefty and expensive repair bill. Depending on your make and model, the check engine light will illuminate or blink. A steady and continuous glow usually means something less serious but a flashing check engine light signifies that your vehicle’s engine is in significant trouble and useful service is required rapidly. If your check engine light is flashing in your 2021 Chevrolet Blazer, we highly recommend not to drive the car and schedule Chevrolet service today. Below is a list of the most common reasons your check engine light can come on:

• One of the most common and frequent cause is that your 2021 Chevrolet Blazer gas cap is loose, damaged or missing. The gas cap for your 2021 Chevrolet Blazer serves different purposes. It prevents unpredictable 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 faulty fuel cap? If your gas cap is old or has a ruptured seal, you can lose fuel through evaporation which will result in more trips to the pump and be more expensive. Luckily, to replace a gas cap isn't pricey. If your check engine light turns on quickly after you put gas in your 2021 Chevrolet Blazer, first thing you should check is to make sure the cap isn’t loose — or that it's still on your car’s roof or at the fuel pump.
• New Spark Plugs or Plug Wires are needed for your 2021 Chevrolet Blazer. The spark plugs are the part of your engine that ignites the air/fuel mix in the combustion chamber of your car. This explosion is what moves the pistons and makes the engine run smooth. The spark plug wires deliver the spark from the ignition coil to the spark plugs. If your spark plugs or spark plug wires are bad or old, you will experience a noticeable poor performance and decreased power. In some 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, leading to more pricey repairs.
• The battery is low or dead. The battery in your 2021 Chevrolet Blazer is every important. Without a car battery, your car won’t start, light up the road in front, 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 genuinely require maintenance. The price of a new one depends on the type of Chevrolet you drive, but check our current service coupons and specials.
• Your mass airflow sensor (known as MAF) needs to be replaced. The mass airflow sensor in your Chevrolet Blazer is what determines how much fuel is needed 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 certain changes, like altitude. If your Chevrolet Blazer is having trouble starting, idling rough or has a sudden fast change in the position of the throttle pedal, this could be a important sign of a faulty mass airflow sensor.
• Your catalytic converter is bad or going bad. The catalytic converter is a part of your 2021 Chevrolet Blazer’s exhaust system. The catalytic converter's function is to turn the carbon monoxide created by the combustion process into carbon dioxide. A damaged catalytic converter is normally caused by consistently neglected maintenance, which is why Coggin Chevrolet at the Avenues offers a complimentary multi-point check with every Chevrolet service. If you have an issue with your catalytic converter and don't get it repaired, your 2021 Chevrolet Blazer 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 perilous problems from overheating.
• Your 2021 Chevrolet Blazer has a vacuum leak. Every Chevrolet Blazer has a vacuum system that performs a wide variety of functions. The vacuum system again 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 dry out and crack, especially if they’re exposed to intense heat or extreme cold.
• Your O2 Sensor (Oxygen Sensor) needs to be replaced. The Oxygen sensor, known as the O2 sensor, measures the amount of oxygen in your exhaust system. If there is excess oxygen in your exhaust system, fuel burns more immediately and your car will be less efficient 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 significant damage to your catalytic converter and your 2021 Chevrolet Blazer's spark plugs. The O2 sensor sends data to the vehicle’s onboard computer to determine the explicitly correct mix of air and fuel that enters the cylinders in your engine. A faulty O2 sensor can again cause a car to fail an emissions test.
• Issues with any aftermarket items. An aftermarket alarm, exhaust or other item can wreak extreme havoc on your 2021 Chevrolet Blazer if it’s not installed properly. These aftermarket components and accessories can drain the battery, trigger the check engine light, or even prevent the car from starting. If these issues sound familiar, bring your Blazer to Chevrolet and have our team of accomplished certified mechanics guarantee that your aftermarket items were installed properly and aren't causing any issue. Getting accessories, especially aftermarket parts and accessories, or utilizing OEM components first place might cost a little bit more but could help you save substantially from having to get poor work and damage caused by poor installation work corrected.

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 perfectly tightened to a more serious failure like a bad catalytic converter or a problem with one of the car's oxygen sensors, so it good to get the proper code reading and diagnosis. The average cost for a check engine light diagnosis & testing is generally between $88 and $111. The good news, Coggin Chevrolet at the Avenues offers entirely complimentary multi-point inspections and free diagnostics, in most cases, to help determine the cause of your check engine light.

Check Engine Light Service 2021 Chevrolet Blazer

What do you do when you’re driving along in your Chevrolet Blazer and suddenly, a yellow light illuminates on your dash and says "Check Engine". If you’re like most Chevrolet owners, your heart sinks exceptionally because you may have specifically 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, serene breath and realize the light coming on doesn’t mean you have to pull the vehicle over to the side of the road and call a tow truck, but it is advised that you get your 2021 Chevrolet Blazer checked instantly. Ignoring that warning could end up causing major, huge damage to costly engine parts.

When your 2021 Chevrolet Blazer'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 ordinarily 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 can immediately identify 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 Chevrolet auto repair mechanics at Coggin Chevrolet at the Avenues. There are also a number of essentially inexpensive code readers that are designed for do-it-yourselfers, should you pick 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 specifically correct issue and repair it.

Is it safe to drive your 2021 Chevrolet Blazer with the check engine light on?

This question is not tremendously simple 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 safe to drive. This is typically indicated by a steady glow of the check engine light. If you notice a difference in the performance of the car, it could be an indication of a more serious problem. If the check engine light is flashing, this means that there is a serious issue and it is suggested to service your Chevrolet Blazer quickly. Call the experts at Coggin Chevrolet at the Avenues by dialing 9045745317 so you can describe the issues. Or decrease your speed and bring your 2021 Chevrolet to our certified mechanics as in the near future as possible.

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

It could be anything from a bad sensor to plug wires needing to be replaced. Since each check engine code has its own level of severity, it is ordinarily difficult to predict how many miles you can be secure in driving with the warning light on. If you check engine light is flashing, we suggest that you pull over and contact Coggin Chevrolet at the Avenues to help determine if your car is secure to drive in or if we suggest a tow truck. The safest bet is to decipher the code and then plan your strategy accordingly.

2021 Chevrolet Blazer 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 many common causes including something as simple as a loose gas cap. Other generally common reasons for a Check Engine Light are dirty mass airflow sensor, damaged emissions control part, damaged head gasket, broken oxygen sensor, a malfunction with the fuel injection system, or damaged spark plugs to name a few. No matter what is the root cause of the Check Engine Light, we have the Chevrolet Certified Technicians and the certified service protocol to isolate the root problem and utterly repair it as required to restore factory specifications. When this happens, the Check Engine Light turns off, and you can leave the service center knowing that your Chevrolet issue was totally fixed.

Every 2021 Chevrolet Blazer was designed with a high-technology performance monitoring system with a computer, and a series of sensors positioned strategically throughout the car on its critical systems. The rapid sensors are continually detecting conditions while sending crucial 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. Nonetheless, unfortunately that is the limitation of the Check Engine Light – it won’t tell you what explicitly is wrong nor what to do about it. That’s where we come in; Coggin Chevrolet at the Avenues provides a Check Engine Light Diagnosis Service that isolates the core problem and gives you a recommendation on what to do next from a Very Qualified Service professional.

What Does the Check Engine Light Mean?

One of the most commonly misunderstood lights or indicators in your 2021 Chevrolet Blazer is the check engine light. The check engine light is part of the important onboard diagnostics system, and displays in a wide range of 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 wide range of things for your 2021 Chevrolet Blazer. Some of these essential duties include ignition timing, shifting automatic transmissions controlling engine speed, and implementing cohesion control, just to name a few. With that being said, the check engine light can mean a wide range of different things. It can be as simple as your gas cap being loose or as hazardous as engine knocking. If your check engine light is on in your 2021 Chevrolet Blazer, contact Coggin Chevrolet at the Avenues. Contact Coggin Chevrolet at the Avenues today! Our Chevrolet service department can help you find out what code is turning your check engine light on or diagnose why your check engine light is flashing.

2021 Chevrolet Blazer Check Engine Light

If the check engine light in your 2021 Chevrolet Blazer starts flashing, that means that the problem needs attention quickly and your Chevrolet should be brought in instantly. A flashing light reveals that the problem is exceptionally serious and if not taken care of quickly may result in major and significant damage to the vehicle. This blinking light usually reveals a severe engine misfire allowing unburned fuel to be dumped into the exhaust system. There it can immediately raise the temperature of the catalytic converter to a point where damage is likely, requiring an costly and extensive repair. Some owners ask if spark plugs cause the check engine light to flash? This can exactly be the cause. A defective, old or dirty spark plug can cause the engine to misfire. If the problem is totally ignored or you continue to drive, this can spread to the spark plug wires, catalytic converter, or ignition coils which can lead to a extremely costly repair. If your check engine light is regularly flashing, please contact our team of automotive experts at Coggin Chevrolet at the Avenues rapidly by calling 9045745317.

2021 Chevrolet Blazer Check Engine Light Codes

The check engine light turning on can be quite intimidating, particularly to see that little light on your vehicle’s dashboard suddenly illuminate, 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, likewise known as the OBD (on-board computer diagnostic system) in your Blazer. There are hundreds of different codes that your check engine light can properly represent. While that sounds daunting, with a little patience, tackling basic diagnostics will give you helpful knowledge about your car and will likewise allow that crucial Check Engine Light to do what it is really supposed to do: be your guide. Sadly, obvious and useful car symptoms do not repeatedly accompany an illuminated Check Engine Light. Since there are hundreds of possible OBD codes, there are likewise hundreds of possible reasons for the light, including:

• Fuel and air metering systems problems
• Emissions controls issues
• Loose Gas Cap or Missing Gas Cap
• Transmission issues
• Ignition system faults
• Bad Spark Plugs
• O2 Sensor
• Computer output circuit issues
• Old Battery

This is why it is vital for someone who does not have a lot of prevalent automotive knowledge to not assume what a code means. If the engine light comes on due to a serious concern, you risk damaging your car further by not repairing the issue right away. When your check engine light comes on, you should get it checked out immediately by a talented certified Chevrolet mechanic. Call Coggin Chevrolet at the Avenues at 9045745317 today or schedule your check engine light service online today!