2018 Chevy Tahoe Check Engine Light

What could cause the check engine light to come on in a 2018 Chevy Tahoe?

When your check engine light comes on, this could be as simple as tightening or replacing your gas cap. Again, 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 pricey repair bill. Depending on your make and model, the check engine light will illuminate or blink. A steady and continuous glow ordinarily 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 instantly. If your check engine light is flashing in your 2018 Chevy Tahoe, we highly advise not to drive the car and schedule Chevy service today. Below is a list of the most common reasons your check engine light can come on:

• New Spark Plugs or Plug Wires are required for your 2018 Chevy Tahoe. The spark plugs are the part of your engine that ignites the air/fuel combination 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 conspicuous poor performance and reduced 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 2018 Chevy Tahoe has a vacuum leak. Every Chevy Tahoe has a vacuum system that performs a wide variety of functions. The vacuum system likewise 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.
• The battery is low or dead. The battery in your 2018 Chevy Tahoe is every critical. 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 really require maintenance. The price of a new one depends on the type of Chevy you drive, but check our current service coupons and specials.
• Issues with any aftermarket items. An aftermarket alarm, exhaust or other item can wreak extreme havoc on your 2018 Chevy Tahoe 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 Tahoe to Chevy and have our team of talented certified mechanics assure that your aftermarket items were installed perfectly 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 substantially from having to get poor work and damage caused by poor installation work corrected.
• One of the most common and frequent cause is that your 2018 Chevy Tahoe gas cap is loose, damaged or missing. The gas cap for your 2018 Chevy Tahoe serves multiple 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 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 expensive. Luckily, to replace a gas cap isn't costly. If your check engine light turns on rapidly after you put gas in your 2018 Chevy Tahoe, 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.
• Your mass airflow sensor (known as MAF) needs to be replaced. The mass airflow sensor in your Chevy Tahoe is what determines how much fuel is required 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 Chevy Tahoe 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 damaged mass airflow sensor.
• Your catalytic converter is bad or going bad. The catalytic converter is a part of your 2018 Chevy Tahoe’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 frequently caused by constantly neglected maintenance, which is why Stevinson Chevrolet offers a free multi-point examination with every Chevy service. If you have an issue with your catalytic converter and don't get it repaired, your 2018 Chevy Tahoe 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 dangerous 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 rapidly 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 serious damage to your catalytic converter and your 2018 Chevy Tahoe's spark plugs. The O2 sensor sends data to the vehicle’s onboard computer to determine the definitely correct combination of air and fuel that enters the cylinders in your engine. A damaged O2 sensor can likewise cause a vehicle to fail an emissions test.

2018 Chevy Tahoe 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 mainly common reasons for a Check Engine Light are faulty emissions control part, damaged oxygen sensor, a malfunction with the fuel injection system, broken head gasket, dirty mass airflow sensor, or broken spark plugs to name a few. No matter what is the root cause of the Check Engine Light, we have the Chevy Certified Mechanics 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 Chevy issue was totally fixed.

Every 2018 Chevy Tahoe was designed with a high-technology performance monitoring system with a computer, and a series of sensors positioned strategically throughout the vehicle on its important systems. The quick 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 specifically is wrong nor what to do about it. That’s where we come in; Stevinson Chevrolet 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.

Will the check engine light reset itself?

The check engine light on your 2018 Chevy Tahoe will usually shut itself off if the issue or code that caused it to turn on is fixed. For instance, if the cause of your check engine light coming on was a loose gas cap, if it's tightened, the light will rapidly turn itself off. Again, if your catalytic converter is working correctly, 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 2018 Chevy Tahoe 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 Stevinson Chevrolet so the light and code can be double-checked and reset.

2018 Chevy Tahoe Check Engine Light Codes

The check engine light turning on can be quite intimidating, exceptionally 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, also known as the OBD (on-board computer diagnostic system) in your Tahoe. 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 vehicle and will also allow that essential Check Engine Light to do what it is genuinely supposed to do: be your guide. Unfortunately, evident and useful vehicle symptoms do not invariably 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:

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

This is why it is critical for someone who does not have a lot of predominant automotive knowledge to not assume what a code means. Call Stevinson Chevrolet at 7207042290 today or schedule your check engine light service online today! When your check engine light comes on, you should get it checked out immediately by a proficient certified Chevy mechanic. If the engine light comes on due to a serious concern, you risk damaging your car further by not repairing the issue right away.

What Does the Check Engine Light Mean?

One of the most frequently misunderstood lights or indicators in your 2018 Chevy Tahoe is the check engine light. The check engine light is part of the crucial onboard diagnostics system, and displays in an assortment 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 an assortment of things for your 2018 Chevy Tahoe. Some of these essential duties include shifting automatic transmissions controlling engine speed, ignition timing, 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 2018 Chevy Tahoe, contact Stevinson Chevrolet. Contact Stevinson Chevrolet today! Our Chevy 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 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. The average cost for a check engine light diagnosis & testing is generally between $88 and $111. The good news, Stevinson Chevrolet offers entirely 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?

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 usually difficult to predict how many miles you can be safe in driving with the warning light on. If you check engine light is flashing, we advocate that you pull over and contact Stevinson Chevrolet to help determine if your car is safe to drive in or if we advocate a tow truck. The safest bet is to decipher the code and then plan your strategy accordingly.

Is it safe to drive your 2018 Chevy Tahoe with the check engine light on?

This question is not remarkably 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 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 advised to service your Chevy Tahoe swiftly. Call the experts at Stevinson Chevrolet by dialing 7207042290 so you can describe the issues. Or lessen your speed and bring your 2018 Chevy to our certified mechanics as shortly as possible.

2018 Chevy Tahoe Check Engine Light

If the check engine light in your 2018 Chevy Tahoe starts flashing, that means that the problem needs attention promptly and your Chevy should be brought in immediately. A flashing light reveals that the problem is exceptionally serious and if not taken care of promptly may result in major and meaningful damage to the vehicle. This blinking light frequently 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 specifically be the cause. A damaged, old or dirty spark plug can cause the engine to misfire. If your check engine light is repeatedly flashing, please contact our team of automotive experts at Stevinson Chevrolet rapidly by calling 7207042290. 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 expensive repair.

Check Engine Light Service 2018 Chevy Tahoe

What do you do when you’re driving along in your Chevy Tahoe and suddenly, a yellow light illuminates on your dash and says "Check Engine". If you’re like most Chevy owners, your heart sinks exceptionally because you may have exactly 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 2018 Chevy Tahoe checked promptly. Ignoring that warning could end up causing major, major damage to costly engine components.

When your 2018 Chevy Tahoe'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 rapidly 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 Chevy auto repair mechanics at Stevinson Chevrolet. There are again a number of comparatively inexpensive code readers that are designed for do-it-yourselfers, should you select 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 explicitly correct issue and repair it.