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If You Get A New Engine Does The Mileage Change? – All You Need To Know

November 21, 2022

No, replacing your vehicle’s engine doesn’t change or reset its mileage. If you get a new engine, does the mileage change? – This is a very popular question asked among those who are going to replace engines. Engine replacement is an important decision. When you are going to do it, you should consider every detail. To put it simply, replacing the engine does not affect mileage. The odometer is not connected to the engine. It is not a comprehensive answer to the question. Let’s dig deeper and discuss everything connected to changing the motor. For instance, do you know what is necessary before this process? Does replacing the engine mean a lot for a car? Is it as beneficial as you expect? What are the most common problems people stumble upon? Does mileage information change after swapping? Those are questions that may come to your mind when it comes to an engine change.

Let’s start and discuss all the above-mentioned topics one by one and answer the main question broadly: if you replace an engine does the mileage change?

How To Get Ready 

As long as the engine is the heart of the automobile, it takes a huge effort to make decisions about it. You need to calculate risks and benefits and determine the necessity of it. The first and foremost thing is to search for a professional mechanic who does the task flawlessly. It is not only about removing the old one and installing the new one.

If you consider your engine old because it counts more than 10,000 miles, you should know that the traveled distance also affects other parts. Those parts experience wear and tear the same way the engine does. If you ignore the necessity of paying attention to them, motor changing doesn’t make sense at all. You will suffer unforeseen problems when they break down because of poor maintenance. Parts that also need closer attention are the following: air conditioner system, cooling charging, starting systems, transmission, and power steering. It is highly recommended to check and replace those parts if it is necessary. Preparing for replacement also includes installing particular things in advance.

What To Do

  1. Install oxygen sensors. It plays an important role as long as it lets the computer know if the fuel mix is burning rich (not enough oxygen) or lean (too much oxygen). When it is faulty, it has an impact on proper timing and combustion intervals. So, if fuel economy and emission control are your priority, replacing those sensors will benefit you at any rate;
  2. Install belts and hoses;
  3. Check and change the coolant temperature sensor. When those components are in a good condition, you can easily avoid possible overheating of the engine. overheating has a damaging effect on the engine. 

So, if you replace a car engine does the mileage change? – No, it is not, but there are integral parts of the vehicle that experience wear and tear because of distance traveled. That’s why we should pay attention to them.

Additionally, you should make a decision about what is your optimal option. Those alternatives are the following: pre-owned engines rebuilt engines or remanufactured.

In the following paragraph, we will discuss how valuable and beneficial swapping can be. Is it as worthwhile as you think? 

Is It Worth It? 

When your engine breaks down or has trouble working properly, the first thing that comes to your mind is taking it to a repair shop and finding a solution with the mechanic. The most desirable outcome can be that it just needs maintenance services. It is not a serious issue at all. The same happens when you need to replace systems like belts and hoses. A blown engine is a worst-case scenario because you have to determine if it is worth changing it or giving up the auto at all. To tell the truth, swapping is cost-effective but mostly it depends on your personal choice and values, but mostly your budget. 

When we are talking about cost-effectiveness, changing the engine is the best decision if you know that you get insurance and warranty coverage. The other thing is if the vehicle carries sentimental value for you. Hence, you don’t want to let it go. 

So, you have to summarize all risks and values and make a final decision. After you decide an start the process then you can become interested in: If you get a new engine does the mileage change?

What You Should Expect After Swapping – Problems 

Aftereffects of swapping

An engine change is not the end of the story. Sometimes it’s just a beginning. Sometimes you should be ready for some problems you may encounter. But if you identify the problem at an early stage and take it to a mechanic, the problem will disappear easily. If you pay attention to the particular signs, you avoid permanent damage. I inform you in advance that it doesn’t mess with the odometer reading. If you replace an engine does the mileage change? – No. 

Be Alert to Sounds

When you hear unusual sounds when you drive, you should know that something is wrong with the engine. There is a chance that bearings or seals are broken. Screeching or whining Sounds sounds indicate that worn-out serpentine belt, a failing power steering pump, and a malfunctioning AC compressor. Tapping and clicking sounds mean that you should check the oil level. 

Be Aware of the Color of Smoke 

Smoking that comes out is helpful to determine the issues. It’s not always a reason for worry. Clear smoke means that everything is okay. But any other color can be a sign of damage. This usually means that if you do not take urgent measures, you will end up with serious damage to the engine. Black exhaust generally means that vehicles are using too much gasoline. The reason is clogged air filters. Hence, fuel economy is impossible.  

Check Engine Light 

When you notice that the check engine light comes on after replacing the engine, you should know that there is an issue. The check engine light is a signal that the onboard diagnostics system (or OBD II) has detected a malfunction in the vehicle’s emissions, ignition, fuel, or exhaust systems. This can be caused by a faulty spark plug, a fuel cap not being placed properly, a damaged sensor of airflow or oxygen flow, a faulty engine coil or duel injectors, or the thermostat may be broken.

Keeping a close eye on the above-mentioned things is beneficial for identifying and eradicating all issues at an early stage. So, it will be good to consider everything. As you see, replacing the engine is not followed by mileage issues. The answer to the question: If you replace a car engine does the mileage change? – is always negative. Let’s see what happens to the odometer reading in detail. 

If You Get A New Engine Does The Mileage Change?

No, once you change the engine it will not afect the mileage, however there are other details to consider. It’s a high chance that when you decide on changing the engine, the odometer reading reaches hundreds and thousands of miles. Naturally, you may think that installing a brand-new Engine may cause resetting of the odometer. You can find the answer to the question” If you get a new engine does the mileage change?” easily. All you need is elementary automotive knowledge. 

The odometer work by counting wheel rotations and assuming that the distance traveled is the number of wheel rotations times the tire circumference, which is a standard tire diameter times pi (3.1416). The most common way to reset it is mostly illegal, known as odometer fraud.

Where Is The Mileage Data Stored?

Where is the information about mileage stored? Mileage data is usually stored in the instrument cluster, sometimes in ECU, or the body control module (BMC). However, depending on cars, it might slightly vary. When the cluster is faulty, all you need to do is repair it. When it is repaired, all information is available as usual. It is better to write down the odometer reading before removing the cluster because sometimes you get a false odometer reading and you may need to correct it. You already know where the data is stored and therefore you have an answer to the question: if you replace an engine does the mileage change?

Odometer Correction – Ultimate Necessity Or Illegal Activity?

There are certain cases when correcting the odometer is an inevitable necessity. For example, when the instrument cluster is at fault or you have come across an electrical fault. In short when you know for sure that the odometer reading is not genuine for some reason. To put it simply, it should be legal and documented accordingly. You may need a legitimate reason for the correction, that’s why you are not sure. If you replace a car engine does the mileage change? – As we already mentioned – Absolutely not. 

On the other hand, the disconnection, resetting, or alteration of a vehicle’s odometer with the intent to change the number of miles indicated is a criminal offense. It generally happens when dishonest sellers try to deceive potential buyers. There are various correction tools on the market and they serve as illegal devices for wrongdoers. 

Ethical Tool for Odometer Correction 

The most desirable tool for correcting data is the Mileage blocker. It is an extraordinary device for ethical purposes. Its initial function is to halt the mileage recording process unconditionally from all control units. It is on sale on our website. We recommend using it only for testing purposes in a controlled environment. We created the module which is very sophisticated with premium quality parts from Germany. Hence, it is the most reliable and desirable stopper that you can come across on the market. We offer proper installation and technical support you can visit our costumer center and get answers to all your questions.


So, you already get a comprehensive answer to the answer: If you get a new engine does the mileage change? Additionally, you learn further information about engine maintenance and repair. An engine swap is not a bad idea. You just need to determine how beneficial it can be for you. Proper service and maintenance always matter for every component to last longer. If you worry about odometer data when testing the performance, you know where to find the perfect device for that purpose. 

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