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Is It Worth Fixing Engine Knocking? All You Need to Know!

Is It Worth Fixing Engine Knocking? All You Need to Know!

Before spending a penny fixing engine knocking, you must ask yourself, “is it worth fixing engine knocking?” The short answer is it depends. If you detected the problem early and discovered that it's related to a minor issue, it is worth fixing engine knocking. However, it might not be worth the repairs if you ignore the problem for a long time.

Auto Repairs Are EXPENSIVE


The more we own our cars, the more we'll realize when it makes weird noises indicating internal issues. The last thing you want to do is ignore these noises because it can easily get complicated and cause major damage.

While sometimes vehicles noises might be related to minor issues, in many situations, it can be related to a significant problem that could cost you thousands of dollars on repairs. For example, engine knocking is a very common engine problem related to a minor issue and can be related to a significant problem.

Many people still wonder whether it's worth fixing engine knocking or not. This article will help you answer the question, “is engine knocking expensive to fix?” And it will also provide you with a rough estimate about how much it will cost you to fix engine knocking. Finally, the article will provide you with certain situations that are worth the repairs and other situations where it might make sense for you to sell the car instead of wasting your time and money.

What is engine knocking, and what causes it?

Before we discuss the details about “is it worth fixing engine knocking?” It is very important to understand what engine is knocking and what exactly causes it. Once you have a good understanding of the main causes, you'll have a better idea about whether it's worth the repairs or not.


Engine knocking is always related to our problem with the combustion process. In any vehicle equipped with a combustion system, your engine will need specific elements to function properly. These elements include an exact amount of air and fuel and the right spark to ignite the air-fuel mixture and generate the energy.

If any of the mentioned elements had a problem or was not supplied with the required amount and at the right time, income on your vehicle will deal with combustion problems. You might notice it in the form of continuous knocking noises.

Whenever you hear these loud knocking noises, you might panic because it could indicate a serious issue. However, engine knocking happens due to various reasons, and some of these reasons might not be very serious. Let's take a closer look below at engine knocking causes:

1-    Bad fuel

If you decide to go with a lower quality fuel, don't be surprised to deal with engine knocking because engine knocking happens due to bad fuel as the most important reason. Some drivers might think that it is smart to save on fuel by selecting a lower octane level. However, they didn't know that every vehicle is designed in a way that accepts certain octane levels. Therefore, if you went with lower quality or a lower octane level, your vehicle would suffer, and you might deal with engine problems that will show in the form of engine knocking.

2-    Smaller cylinder sizes

Over youth, your engine's cylinders start building carbon, which impacts how much volume you have in each cylinder. The more volume builds up, the smaller the cylinder size and the higher the pressure, which impacts the different elements until the combustion process.

When the cylinder doesn't have the right pressure, you'll have disturbance in how the engine functions, and that's why you might hear some engine knocking.

3-    Hot spots

Carbon buildup does not only impact the cylinder size, but also it causes areas of hot spots where it retains more heat than what's your engine can sand here; therefore, it will impact the maximum temperature of the air-fuel mixture will need to reach before the spark is generated, which also impacts the functionality of your combustion system.

4-    Wrong air-fuel mixture

As we indicated earlier, your engine requires a specific amount of air to fuel the mixture. Therefore, if there is any disturbance in the air-fuel mixture ratio, you'll deal with engine knocking. For instance, if there is some problem related to the fuel injectors, your vehicle will run on more air than fuel. Similarly, if there is a problem with the intake air valve, you also deal with a disturbance in the air-fuel mixture, which leads to engine knocking.

5-    Malfunctioning valves

Finally, if carbon buildup accumulates inside the main valves around the cylinder, fuel and air won't flow properly, and that's why the combustion process will be disturbed. Therefore, you might notice some engine knocking.

How much does it cost to fix engine knocking?

Depending on the root of the problem, to fix engine knocking, expect to pay between $500 and $1000. Keep in mind that the repair costs are one important element that should be considered carefully because it differs significantly depending on where you get the job done.

For example, if you have the right mechanical skill sets to resolve engine knocking yourself, you don't have to worry about labor costs. However, if you decide to go with a dealership, repair costs will be much higher because of the high hourly rate for dealership mechanics.

Is it worth fixing engine knocking?

Now you have a good idea about how much it will cost to fix engine knocking, the main most important question that you should ask yourself before spending any money is “is it worth fixing engine knocking?”

The short answer to this question is it depends. You can't accurately say that it is worth or not worth fixing engine knocking unless you understand the main routes causing the problem. Also, resolving the issue can be different depending on how long you've been hearing the engine knocking and how long you've ignored it.

For example, if your problem has to do with some minor carbon buildup inside the engine, washing the engine should cost is somewhere between $100 and $400. Of course, if you are at the early stages of carbon buildup, you can rely on some of the commercial cleaners that you can use and clean the engine here. That's why you must monitor engine knocking and take care of it immediately as soon as possible to prevent getting to extremely high repair costs.

On the other hand, if the issue is the air intake valve, repair costs can range from $120 to $500. Still, these repairs are not extremely expensive, but it depends heavily on your vehicle's value to determine whether you should fix the engine knocking or not.

Finally, if you ignore engine knocking for a very long time, you can easily deal with major problems that require thousands of dollars in repairs, especially if you need to install a new engine. This doesn't happen unless you completely ignore the problem and delay it for a long time.

It is important to note that determining whether it's worth fixing engine knocking or not also depends on your vehicle's value and on other problems that your vehicle might be suffering from. For example, if your car is not very expensive and you know that there are some other problems in the braking system or probably in the transition, you need to Add all repair costs and calculate a total repair number. Once you have that number, you need to compare your vehicle's overall value and check whether repair costs are approaching the value of your car or not. If that's the case, you should sell your vehicle and use its money to purchase something new that doesn't have engine-related problems.

Is engine knocking easy to fix?

Unfortunately, engine knocking is not one of the minor car problems that are very easy to fix. However, suppose you detect the problem early, and you are able to clean up the engine and remove any carbon deposits. In that case, you might get away from the problem without needing professional mechanics.

However, suppose your problem has to do with some of the internal sensitive engine components. In that case, you'll have to request a professional service because mechanics will know how exactly to get inside the engine and fix the components without causing other damages that could cost you a lot of money on the repair.

Can engine knocks disappear?

Unless you take action, the engine knock will not disappear by itself. Engine AC becomes more complicated and much louder the more you wait on it. Therefore, you must never ignore engine knocking, and whenever you notice it, you should reach out to your mechanic immediately to resolve the problem.

Will adding oil stop engine Knock?

Adding more oil will not stop your engine from knocking. However, it is important to note that running on low oil causes some weird noises that typically sound more like clattering noise but not knocking. Therefore, you can get rid of these clattering noises by adding more oil, but you cannot get rid of knocking unless you address the root of the problem here

How long will a knocking engine last?

From less than an hour to six months. And then knocking is a serious problem, and looking for solutions to convince you to delay taking care of it is not the wisest option. On the other hand, you shouldn't ignore engine knocking because the longer you wait on it, the higher repair costs are. Thus, it will be much cheaper for you to fix engine knocking now rather than waiting for up to six months, thinking that the engine will serve you.

There is no guaranteed time threshold on how long your engine knocking will last without dealing with major breakdowns. Breakdowns will happen at any minute, which means that you might not have any help nearby, and towing the vehicle will be another layer of extra costs that you can easily avoid.

How do I know if I have an engine knock?

If you're unsure how engine knocking sounds like it is more like pinging or tapping repetitive noise that gets worse by accelerating.

If this did not help you, you could always search for how those engine knocking sounds like on YouTube to see some videos that help you understand whether what you're dealing with is engine knocking or not.

It is critical that you understand the different types of engine noises because each noise is related to a different issue. But, first, to serve yourself a lot of time and prevent major breakdowns, learning one or two things about your engine will help you down the road.

Conclusion

Engine knocking is a problem related to a disturbance in the combustion process. This disturbance can happen due to a problem with the air-fuel supply, carbon buildup, or spark plug troubles.

This point is the reason for engine knocking; you must take the problem seriously and resolve it as soon as possible to prevent thousands of dollars needed for repair costs. The longer you wait on engine knocking, the more complicated the problem gets, and the more you get to a point where you should sell the vehicle instead of wasting your time and money.

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