Tips Sahabat

Bad Effects of Car Spark Plugs Rarely Opened

09 April 2025
Busi Jarang Dibuka

One of the things that keeps your car's performance optimal is that the spark plugs must be in good condition. To keep the spark plugs in good condition, they must be opened, which is done through regular servicing. Don't let the spark plugs be rarely opened, as this can have a negative effect on your car.

Usually, as long as there are no problems, many people rarely open or remove their car's spark plugs, even though you shouldn't wait for problems to arise; the spark plugs should be routinely opened and checked. Read the information here until the end and learn about the various negative effects of rarely opened spark plugs. 

Dangers of Rarely Opening Car Spark Plugs

Often, several problems arise due to car spark plugs being rarely opened, especially if they are rarely replaced. Don't continue this habit, as it will have a negative impact on your vehicle. 

Here are some dangers of rarely opening and replacing spark plugs.

1. Spark Plug Threads Become Difficult to Open

If the spark plugs are rarely opened, this can cause the spark plug threads to become tightly bonded to the cylinder head threads. If this continues and the spark plugs are tightly bonded to the threads, they may break when forced open.

2. Spark Plug Threads Become Rusty and Corroded

In addition to causing the spark plugs to stick tightly to the threads, spark plugs that are rarely opened can eventually become rusty and corroded, leading to breakage. Ideally, you should open the spark plugs regularly and perform periodic servicing. 

3. Decreased Car Performance

Spark plugs that are rarely opened, especially if rarely replaced, can result in decreased car performance and sluggishness. This can happen due to differences in the gap between the electrodes and the ground, and so on.

If this condition occurs, the spark plugs responsible for sparking electricity or fire will become unstable (misfire), causing the vehicle's combustion to be incomplete.

This is what causes the car to feel heavy when used for fast acceleration. 

4. Affects Various Other Components

In addition to affecting car performance, damaged spark plugs and rust caused by not being opened and replaced for a long time can also affect various other components, much like a complication disease. If this happens, be prepared to dig deeper into your pockets for repairs.

5. Causes Permanent Electrical Damage

Spark plugs, being the frontline in the vehicle's ignition system, if not opened, serviced, or replaced for a long time, can cause the voltage on that component to rise.

As a result of this condition, the spark plugs will demand a larger supply from the vehicle parts related to it, such as the battery.

6. Increased Fuel Consumption

The domino effect of rarely opened and replaced spark plugs causes your car's fuel consumption to increase, as this happens due to decreased engine performance. The power generated becomes weaker, and the acceleration capability decreases, resulting in higher fuel consumption than before. 

In replacing car spark plugs, you can also do it yourself at home, but remember! The first thing you need to pay attention to is the use of the right wrench to remove and install the spark plugs. Use the correct size wrench. A spark plug wrench is one of the SST or special service tools that must match the size of the spark plugs in your car.

After knowing the dangers of rarely opening spark plugs, will you still be lazy to open and replace them? Our best advice is to continue to regularly service your vehicle before bigger problems arise.

In addition to performing regular servicing, the durability of the vehicle is also influenced by the choice of vehicle at the time of purchase; choose the best type of vehicle with guaranteed quality. Daihatsu is the best product for those of you who desire a quality and durable car. Get information about our products and services on this page, and don't miss all the information.

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