How To Clean Pistons Without Removing?

The fuel mixture will continuously act on the piston surface during engine operation. Over time this will create stubborn plaques that will adhere to the part. Therefore, we will have to regularly pay attention to this critical position’s cleaning. 

But to reach deep inside the engine was difficult, let alone clean. So, today’s article will introduce you to How to clean pistons without removing them.

Piston Contamination Agent

As mentioned above, the Piston has a unique characteristic: this part must be in constant contact with the fuel mixture. 

So we can conclude that the residual products from burning fuel are the leading cause of pistons becoming dirty. This results in the engine operating less efficiently than it usually does.

In particular, the leading by-product that interferes with the person’s ability to function is carbon powder, a mixture created from the combination of many different substances during fuel combustion. 

The carbon powder will start to work on the steam generated while heating the oil in the long run. And the result of this combination is a liquid slurry with high viscosity and adhesion. 

If you leave the car idle for a long time, there is also a chance that these substances will accumulate on their own and damage the pistons.

However, fuel is not the only thing that can dirty a piston. Because in fact, there are many other types of factors that can do the same thing as fuel deposits when we use poor quality gasoline or oil or accidentally enter engine grease. Often these particular types of dirt will be associated with damage or problems in many other related parts, so you will need to have a thorough inspection of the car to be sure.

Signs That The Piston Is Too Dirty

It is easy to observe that the Piston inside the car is no longer as clean as initially. Because this part plays an essential role in the vehicle’s performance, the problems appear quite obvious.

Performance drop

Performance issues will undoubtedly be the most apparent manifestation of pistons that are full of dirt and need cleaning. 

We all know that the Piston movement is the condition for the other mechanisms to operate the axis of rotation of each wheel eventually. So, suppose one of the pistons becomes unstable due to plaque impeding operation.

In that case, indeed, the engine’s overall performance will not have the necessary stability. The most obvious example is a car feels sluggish when accelerating.

Unusual smoke discharge

If there’s smoke coming out of the engine’s hood, it’s not a good sign. Because those clouds of smoke are a sign that something is wrong with this part, and you need to act quickly so as not to affect the ability to operate seriously.

And among the problems that cause this phenomenon is that the Piston is too dirty. In case the smoke coming out is gray or white, the Piston must likely be cleaned as soon as possible.

Too much oil

Oils are among the essential solvents during vehicle operation. This type of liquid will go from the oil compartment to the pipes to other engine parts for lubrication or cleaning, depending on individual needs.

But if the oil doesn’t get through or can only flow very little in the piston area because the dirt has already blocked the passages, then undoubtedly, other sites deeper will not have the necessary amount of solvent. 

And that is also one of the reasons why the oil shortage indicator light on the car keeps flashing even though we have just replaced the solution.

 How To Clean Pistons Without Removing?

How To Clean Pistons Without Removing

Here are the steps to help you clean all kinds of dirt on the Piston without removing each part.

Turn Off the Engine

Make sure you turn off the engine before cleaning, and also let the engine cool for 45 minutes to 1 hour before any action. Although it is only a few small steps, these actions can certainly ensure that your vehicle does not encounter accidental damage and make the operation process simpler.

In addition, you also need to put the car in an excellent place to avoid heating the vehicle and prevent accidents from asphyxiation or adverse effects from cleaning chemicals.

Clean throttle and pipes

Once the engine has cooled down and a suitable position is found, cleaning can begin immediately. We first need to operate to separate the air hose from the throttle valve and clean both parts with specialized cleaning solutions.

Clean the Fuel Rail

Next, you’ll need to clean the main fuel line because if left alone, the remaining dirt can mix with the fuel and cause problems with the Piston. 

Here we need cleaning machines and specialized water pressure generators to create a jet of water strong enough to penetrate deep into the interior and remove all types of dirt. And also, do not forget to mix cleaning agents into the solution before spraying into the pipeline.

Clean Engine Oil Circulation

At this step, we need to mix the engine performance restoration into the engine oil, then start the car in idle mode for about 30 minutes and change the oil. The main purpose of this step is to clean the dirt inside the engine through the path of the engine oil.

Use Gasoline Enhancer

Gasoline oil is the primary fuel of the vehicle and the type of liquid that the Piston will have to contact the most. Therefore, to limit the formation of plaque and ensure engine performance, we must find ways to minimize the harmful agents available in the fuel. And the best solution here is to use enhancers.

You will need to fill up at least half of your existing fuel tank capacity to use the booster chemicals. Then put the chemical in and fill up the rest of the gasoline.

Increase Engine Oil

Not only does new fuel need special attention, but engine oils also need us to pay the same attention because this is the type of solution that plays many vital roles and moves everywhere inside the engine. 

And if there are too many impurities mixed in the oil, the consequences are plaque and many other potentially dangerous risks. A typical example is heating a car system leading to a constantly changing temperature gauge.


Above is all the knowledge you need to know to diagnose and clean pistons without removing them. Hopefully, the amount of information contained in the article can be helpful to you and make the car maintenance process simpler and faster.

Leave a Comment