What problems can arise after descaling the engine?

Engine decalcification is a comprehensive intervention on your car to remove carbon deposits. This mixture of soot and unburned particles contaminates many of the parts necessary for the proper functioning of the engine and, in particular, for the proper combustion of the latter. Find out in this article about the benefits of descaling, when to do it, and the problems that can arise if it's not done correctly!

💨 Engine decalification: useful or not?

Le descaling motor will useful if your engine system is clogged with time. He might be preventive or curative... For example, if you used fuel poor quality, descaling is necessary to remove all residues present in the engine and system parts. exhaust.

In case of intensive cleaning, the mechanic will carry out chemical or hydrogen descaling depending on the type of station that is in his workshop.

However, if your engine is seriously defective, descaling will be done manually. It consists in disassembling each part of the engine for cleaning with a brush and additive. This method allows, in particular, check that there are no leftover parts broken or damaged in the chain.

Descaling will be especially helpful if you notice certain manifestations on your car. In fact, the following symptoms may indicate significant blockage:

• Difficulty starting your car;
• Black smoke appears on startup;
• Vibrations occur when your vehicle is braking;
• More and more fuel consumption compared to normal.

⚠️ What are the consequences of poor-quality engine descaling?

In some cases, the descaling of the engine may not be done well and this will affect the proper functioning of the vehicle. Indeed, depending on the make and model of the vehicle, the descaling power must be adjusted and carried out carefully.

If the engine was not descaled correctly, you may face the following consequences:

• Un pollution control system it doesn't work as expected : If during descaling the engine system was not cleaned properly, the system will generate more pollution;
• One engine overheating : a clogged engine will tend to overheat, it is possible that some parts are completely clogged with carbon deposits;
• Using the engine in degraded mode : to preserve various mechanical elements, the engine can operate in a degraded mode;
• Thick black smoke comes out of the exhaust pipe : This symptom is characteristic of engine contamination, which means that descaling did not give the desired effect;
• Unusual noise occurs : If a part has been damaged by descaling, residues may remain in the air ducts. Thus, while traveling on board, you may hear a clicking, squeaking or metallic noise.

🔍 Do I need to descale the engine before or after changing the oil?

Descaling the engine will allow dissolve calamine accumulates in the intake system motor. So when pistons start moving, it will come into contact with the oil and contaminate it. Even if the latter is protected oil filtercarbon deposits can settle on the bottom of the engine oil pan.

This is why it is highly recommended to start descaling the engine before draining the engine oil and replacing the oil filter going to it. In fact, since there will be no more carbon, oil filter as well as the oil will be completely protected from impurities.

If you change the oil before descaling, there is a good chance that carbon deposits will settle in the crankcase.

🗓️ When should you descale the engine?

No particular periodicity is given in relation to descaling your vehicle. However, diesel vehicles are more susceptible to engine contamination and this operation should be done more frequently.

The engine should be descaled as soon as you notice decreased engine performance and their fouling. To do this, you will need to go to a professional in a car repair shop. It is also necessary that all garages do not offer this operation, because they must be equipped with a special tool with a descaling station.

Engine descaling is necessary to extend the life of many mechanical parts, but it must be done correctly to achieve these benefits. To find a reliable garage and avoid the problems of poor quality descaling, use our online garage comparator. This way, you can compare both the numerous offers and customer reviews of several garages closest to you!