Please wait while the page loads...

Chevrolet Blazer Check Engine Light Codes

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

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

This is why it is essential for someone who does not have a lot of prevailing automotive knowledge to not assume what a code means. Call Bill Estes Chevy Indianapolis at 3176435230 today or schedule your check engine light service online today! If the engine light comes on due to a serious concern, you risk damaging your vehicle further by not repairing the issue right away. When your check engine light comes on, you should get it checked out rapidly by a proficient certified Chevrolet mechanic.

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 mainly common reasons for a Check Engine Light are damaged oxygen sensor, faulty head gasket, dirty mass airflow sensor, faulty emissions control part, a malfunction with the fuel injection system, or defective 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 totally 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 Chevrolet Blazer was designed with a high-technology performance monitoring system with a computer, and a series of sensors positioned strategically throughout the vehicle on its vital systems. The quick sensors are continually detecting conditions while sending critical 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. Nevertheless, sadly that is the limitation of the Check Engine Light – it won’t tell you what specifically is wrong nor what to do about it. That’s where we come in; Bill Estes Chevy Indianapolis provides a Check Engine Light Diagnosis Service that isolates the core problem and gives you a recommendation on what to do next from a Remarkably Qualified Service professional.

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

If the check engine light is flashing, this means that there is a serious issue and it is suggested to service your Chevrolet Blazer promptly. This question is not exceptionally 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 secure 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 vehicle, it could be an indication of a more serious problem. Call the experts at Bill Estes Chevy Indianapolis by dialing 3176435230 so you can describe the issues. Or reduce your speed and bring your Chevrolet to our certified mechanics as shortly as conceivable.

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

When your check engine light comes on, this could be as simple as tightening or replacing your gas cap. Also, the check engine light could likewise be a warning of a serious 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 reveals that your vehicle’s engine is in meaningful trouble and helpful service is necessary swiftly. If your check engine light is flashing in your Chevrolet Blazer, we very advise not to drive the vehicle and schedule Chevrolet service today. Below is a list of the most common reasons your check engine light can come on:

  • Your catalytic converter is bad or going bad. The catalytic converter is a part of your 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 ordinarily caused by consistently neglected maintenance, which is why Bill Estes Chevy Indianapolis offers a free multi-point check with every Chevrolet service. If you have an issue with your catalytic converter and don't get it repaired, your Chevrolet Blazer will not pass an emissions test, show a lack of engine performance and will negatively affect your fuel economy. Your vehicle may run at a higher temperature, too, which can cause other delicate problems from overheating.
  • 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 instantly and your vehicle will be less efficient when it comes to fuel economy. So what happens if I don’t replace your O2 sensor? A damaged sensor can not only affect your miles per gallon, but it can cause meaningful damage to your catalytic converter and your Chevrolet Blazer's spark plugs. The O2 sensor sends data to the vehicle’s onboard computer to determine the specifically correct mix of air and fuel that enters the cylinders in your engine. A damaged O2 sensor can still cause a vehicle to fail an emissions test.
  • New Spark Plugs or Plug Wires are needed for your Chevrolet Blazer. The spark plugs are the part of your engine that ignites the air/fuel mix in the combustion chamber of your vehicle. 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 costly repairs.
  • Your Chevrolet Blazer has a vacuum leak. Every Chevrolet Blazer has a vacuum system that performs a wide variety of functions. The vacuum system still helps lower unhealthy 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, exceptionally if they’re exposed to intense heat or extreme cold.
  • Issues with any aftermarket items. An aftermarket alarm, exhaust or other item can wreak extreme havoc on your Chevrolet Blazer if it’s not installed perfectly. These aftermarket components and accessories can drain the battery, trigger the check engine light, or even prevent the vehicle from starting. If these issues sound familiar, bring your Blazer to Chevrolet and have our team of gifted certified mechanics assure that your aftermarket items were installed correctly and aren't causing any issue. Getting accessories, exceptionally aftermarket parts and accessories, or utilizing OEM components first place might cost a little bit more but could help you save considerably from having to get poor work and damage caused by poor installation work corrected.
  • 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 quick change in the position of the throttle pedal, this could be a crucial sign of a damaged mass airflow sensor.
  • The battery is low or dead. The battery in your Chevrolet Blazer is every crucial. Without a vehicle battery, your vehicle won’t start, light up the road ahead, play the radio or charge your phone. Today’s vehicle 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.
  • One of the most common and frequent cause is that your Chevrolet Blazer gas cap is loose, damaged or missing. The gas cap for your Chevrolet Blazer serves numerous purposes. It prevents hazardous 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 damaged 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 costly. Luckily, to replace a gas cap isn't costly. If your check engine light turns on expeditiously after you put gas in your 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.

What Does the Check Engine Light Mean?

One of the most frequently misunderstood lights or indicators in your 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 car. Onboard computers increasingly have controlled and monitored car performance since the 80s and do a wide range of things for your Chevrolet Blazer. Some of these essential duties include controlling engine speed, ignition timing, shifting automatic transmissions and implementing stability control, just to name a few. With that being said, the check engine light can mean an assortment of different things. It can be as simple as your gas cap being loose or as unpredictable as engine knocking. If your check engine light is on in your Chevrolet Blazer, contact Bill Estes Chevy Indianapolis. Contact Bill Estes Chevy Indianapolis 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.

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

The average cost for a check engine light diagnosis & testing is typically between $88 and $111. The good news, Bill Estes Chevy Indianapolis offers completely free multi-point inspections and free diagnostics, in most cases, to help determine the cause of your check engine light. The check engine light warns of issues ranging from a gas cap that's not properly 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.

Check Engine Light Service 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 drastically because you may have precisely 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, peaceful 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 advised that you get your Chevrolet Blazer checked instantly. Ignoring that warning could end up causing major, major damage to costly engine components.

When your 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 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 can swiftly 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 Bill Estes Chevy Indianapolis. There are still a number of essentially 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 specifically correct issue and repair it.

Chevrolet Blazer Check Engine Light

If the check engine light in your Chevrolet Blazer starts flashing, that means that the problem needs attention immediately and your Chevrolet should be brought in quickly. A flashing light indicates that the problem is extremely serious and if not taken care of immediately may result in major and serious damage to the vehicle. This blinking light usually signifies a severe engine misfire allowing unburned fuel to be dumped into the exhaust system. There it can swiftly raise the temperature of the catalytic converter to a point where damage is likely, requiring an expensive and considerable repair. Some owners ask if spark plugs cause the check engine light to flash? This can specifically be the cause. A faulty, 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 repeatedly flashing, please contact our team of automotive experts at Bill Estes Chevy Indianapolis quickly by calling 3176435230.

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

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

Will the check engine light reset itself?

The check engine light on your Chevrolet Blazer will frequently 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 swiftly turn itself off. Also, if your catalytic converter is working perfectly, 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 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 Bill Estes Chevy Indianapolis so the light and code can be double-checked and reset.