Tips Sahabat

4 Causes of a Car Spark Plug Failing and How to Overcome It

09 April 2025
Penyebab Busi Mobil Mati Satu dan Cara Mengatasinya

A dead spark plug in a car is not a trivial matter, as leaving it unattended can hinder engine combustion performance. The dead spark plug can lead to damage to other spark plugs, damage to the coil, and even damage to the car's electrical system. So what are the factors that cause this to happen and how can it be resolved? For more details, please pay attention to the following review.

Causes of a Dead Spark Plug and How to Overcome It

There are several factors that cause a car's spark plug to die. Here are the complete causes along with how to overcome them.

1. Excessive gasoline entering the engine chamber

The cause of a car's spark plug dying is due to the excessive amount of gasoline entering the engine chamber. This makes the carburetor and the surface of the spark plug wet, making it difficult for the spark plug to produce a spark. If this is left unattended for a long time, it can cause corrosion and dirt buildup in the engine chamber. As a result, the car piston shifts position from TDC to BDC, causing air and fuel to be drawn in.

To address this issue, you must replace all spark plugs that are soaked in gasoline. If the spark plug replacement process still does not resolve the issue, you need to take your car to a workshop for a tune-up and to reset the engine's combustion system.

2. Engine chamber flooded with oil

The second cause may be due to the engine chamber being flooded with oil. This usually occurs due to wear on the cylinder walls, causing the oil rings to fail to prevent oil from entering the engine chamber. If this happens to your car, the exhaust will typically emit a smell like burnt oil and a bluish-white smoke. To resolve this, you need to visit a workshop for a engine overhaul.

3. Incomplete engine combustion

The third cause may be due to incomplete engine combustion. This condition usually occurs because the car owner uses fuel below the manufacturer's octane standard. As a result, the compression of fuel and air in the combustion chamber is not optimal, leading to carbon buildup on the spark plug. 

To address this issue, you need to use fuel that meets your car's octane standard. You can also use fuel with a higher octane rating than your car's standard. If this problem still cannot be resolved, you need to visit a workshop for a tune-up and to reset the combustion system.

4. Use of low-quality spark plugs

The last cause may be due to the use of low-quality spark plugs. Cheap spark plugs do have a much lower price than original spark plugs. However, using low-quality spark plugs can cause the spark plugs to die one by one with a relatively short lifespan. 

To resolve this, you need to replace all your spark plug components with original products. Original components certainly have much better quality than cheap products. Additionally, original spark plugs fit properly in the car, ensuring a smooth spark generation process. This will undoubtedly impact the engine combustion process, maximizing the car's performance.

If you plan to replace the spark plugs, you can purchase spark plugs at the nearest Daihatsu workshop. Because Daihatsu workshops always sell original spare parts. In addition, Daihatsu workshops are also reliable in car maintenance, including spark plug replacement, combustion system tuning, tune-ups, and overall car maintenance. 

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