5 Symptoms of a Bad Piston Rings in Your Car

In this article we are going to share information about one of engine parts called piston rings. After read this article you will know the basic functions, bad symptoms, driving (with worn piston rings), tips to diagnose and tips to prevent.

Basic Functions

The internal combustion engine of a vehicle is comprised of piston rings which surround the diameter of the pistons. There are 4 primary functions to piston rings:

  1. The first function is to seal the middle of the cylinder and piston after combustion takes place. That way, the combustion gases do not leak out from there.
  2. The second function is to manage the amount of oil lubrication for the moving pistons.
  3. The third function is to take heat away from the pistons so that it doesn’t damage the engine.
  4. Finally, the last function of piston rings is to ensure the piston does not knock against the cylinder wall.

As you can see, the piston rings play a vital role in the functionality of your vehicle’s engine. You cannot afford to have one of its functions go bad, let alone all of them. This could spell trouble for you as you’re driving your vehicle. Suddenly, you’ll experience an array of problems with the engine, oil, and overall performance of the vehicle. If you can understand what these problems mean and where they come from, then you can trace them back to bad piston rings.

5 Bad Symptoms

The piston rings should stay strong for a very long time. However, like most parts in a vehicle, they will eventually become worn out. You will need to replace these components quickly or else your vehicle will face more severe damage. This will be damage that will cost you thousands of dollars instead of hundreds of dollars. Therefore, it is important to recognize the symptoms of bad piston rings as they occur.

Below are the top 5 symptoms of bad piston rings in your car.

1) Oil Leak

Whenever you have worn out or damaged piston rings, they are going to leak oil from them. This oil will likely find its way into the internal combustion chamber. Once that happens, there will be an abundance of oil consumed at a fast rate. To prevent too much engine heat from being generated, you’ll need to add more oil in order to supplement the oil that leaked out. Of course, you should only do this so that you can buy enough time to get your vehicle to the mechanic and have them fix the leak.

2) Poor Acceleration Performance

Damaged piston rings will cause your engine power to diminish. You will notice this when you step on the gas pedal to try and accelerate your vehicle. Instead of going faster as you accelerate, there will be a delayed reaction to the acceleration. It may even take more than a few seconds before you start going a little bit faster. But you won’t go as fast as you’d like to, though.

3) Excessive Exhaust Smoke

Bad piston rings can result in gray or white colored exhaust smoke coming out of your tailpipe. This is a result of the leaky oil burning inside the combustion chamber. It will be a very thick cloud of smoke which you can distinguish from any other type of exhaust smoke. If you see this smoke coming out, then you can blame it on bad piston rings.

4) No Acceleration

As the poor acceleration continues from having bad piston rings, it will eventually become so bad that you won’t be able to accelerate at all. You will merely step on the gas pedal and the vehicle just won’t be able to go over a certain speed. In some cases, it won’t be able to move at all, leaving your vehicle parked and stagnate.

5) Overheated Engine

If you fail to notice the oil leak from having bad piston rings, then your engine will start to heat up. Remember that oil is what lubricates the engine and keeps its moving components cooled. If these components start to heat up too much, they will overheat the engine. This could cause permanent engine damage, which is the costliest problem you will ever need to fix.

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How Long can I Drive My Car with Bad Piston Rings

Piston rings are located inside of the internal combustion engine. If the piston rings ever go bad in your vehicle, you need to think carefully about whether you should replace them or not. Piston ring replacement requires the engine to be disassembled, which is a very complex and expensive job. It is also a very risky procedure because it is difficult to reassemble an engine back to its original settings. That is why you should only replace the piston rings if you have no other choice.

If the piston rings are damaged rather than worn out, you will need to replace them immediately. But if your piston rings are slowly wearing out, you may have some time to spare before you need to have them replaced. The first noticeable symptom of bad piston rings is white and gray exhaust smoke coming out of the tailpipe. That is a sign that engine oil is leaking through the piston rings and getting into the combustion chamber of one or more engine cylinders. The smoke is caused by the oil that is burning within the chamber during the combustion process.

Meanwhile, as the white and gray smoke emits from the tailpipe, you also have more oil being consumed in the engine. But since there’s an oil leak, you’re going to have less oil in the engine as well. That’ll result in the engine overheating and possible damage to the components of the engine. This is all a big problem which must be addressed fast or else your engine could suffer irreparable damage.

Your vehicle may last for a couple of weeks if you simply keep changing your oil to accommodate for the leak. However, your engine won’t be able to produce as much power as it did before. This will make it a driving hazard on the road, which puts people’s lives in danger.

Therefore, there it is really not worth waiting even a couple of weeks to replace your piston rings. As soon as you notice white and gray exhaust smoke, take your vehicle to the mechanic and have them investigate the source of the problem. If they determine that your piston rings are bad, then have them replaced immediately.

Tips to Diagnose Worn Piston Rings in Your Car

Piston rings are needed to manage the oil pressure within the engine. This determines how much oil passes through the engine, which is crucial for preventing the engine from overheating. If the piston rings in your car ever become worn out, then it could be devastating for your engine and its internal components.

Piston rings are not expensive to replace. But if you fail to replace them after a certain amount of time, then you could have a lot more expenses on your hands where your engine is concerned. The replacement cost for a new engine is several thousands of dollars. If you want to avoid this outrageous expense, then you must pay attention to the signs of worn-out piston rings.

Below are 3 basic tips for diagnosing worn-out piston rings in your car.

Check Engine Oil Consumption

In a normal circumstance, you would have to change your engine oil every 3,000 to 5,000 miles. But if you find that your oil is going bad a lot faster, then you may have a problem with your piston rings. Bad engine oil is noticeable because your engine will start to overheat. As you know, oil provides lubrication to the engine components, and that contributes to keeping it cool. If the oil fails to do this while under 3,000 miles, then it could be a piston ring issue.

Check Exhaust Smokes

Do you see a lot of exhaust smoke emitting from the tailpipe? If so, does the smoke appear thick with gray and white colors? If you answered “yes” to each question, then it could be linked to bad piston rings. The result of which is oil leakage running into the internal combustion chamber. When the oil gets burned, thick clouds of exhaust smoke are generated.

Check the Engine Power

Damaged or worn-out piston rings limit the amount of compression within the engine. As a result, the engine will take longer to generate power after you put your foot on the gas pedal. You must replace the piston rings in order to resolve the issue. Don’t let the problem continue for too long or else your car may not run at all.

Tips to Prevent

The only way to solved the piston rings problem us to change it. But the price often would make you want to break your credit card. So you should considering to prevent the pistons rings wore out.

  • Only using the recommended engine oil. Some oil is too washy to your piston ring and its seals. It could be initiate the oil leak. Different car has different engine. They need certain oil that might be incompatible with another one.
  • Change the oil and filters as recommended at your manual book. Usually the book suggested you to change those parts by distance or date. Write down every time you change them, both distance and date and price if necessary. it could be practiced for the other components.
  • Pull over and bring your vehicle to the mechanic as soon as you find out something wrong with your car, especially with your engine.


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