The car’s “alarm” signal, once found, you need to hurry to deal with otherwise damage the engine.

After buying a car, many car owners only know how to drive but do not know how to maintain the vehicle or read early warning signs. Experienced drivers often understand the vehicle’s parts more clearly, notice alarm signals earlier, and send the car for inspection before a small problem becomes harder to repair.

This guide organizes several common vehicle alarm signals. Once these symptoms appear, the spark plug should be checked promptly, because continued driving with worn or faulty spark plugs may affect ignition quality and can eventually damage the engine.

Excessive oil depletion

Excessive Oil Depletion#

If you find that the car has been burning oil for a long time, and replacing it with another brand of oil has little effect, the spark plug should be included in the inspection. The spark plug is one of the most important ignition parts in the vehicle.

When the oil-burning phenomenon is serious and does not improve through normal oil replacement, it may mean the spark plug needs to be replaced. Continuing to ignore this signal can increase the risk of engine damage.

Often appear stuttering

The Vehicle Often Stutters#

Sometimes when starting the car, a stuttering phenomenon appears, and the stuttering may become severe. This can also indicate that the car’s spark plugs have problems.

If spark plugs are not changed for a long time, or if they are severely worn, the car may stutter within a certain speed range. The driver may feel that the vehicle is underpowered, acceleration becomes weak, and the vehicle’s speed may suddenly change before it stalls.

When this happens, the owner should hurry to replace the spark plugs and check whether the car has other safety risks.

Idle state shaking amplitude is very large

The Idle State Shakes Severely#

To detect whether the spark plugs need to be replaced, the owner can observe the car while it remains in an idle state for a period of time.

If the vehicle shakes seriously at idle and also generates noise, it means the spark plugs should be checked and may need to be replaced.

The process of driving suddenly stalled

The Car Suddenly Stalls While Driving#

The driving process of the car should not stop for no reason. Once the vehicle is found to stall, it usually indicates that some parts have problems and should be inspected.

For example, if the spark plug has not been changed for a long time or has already been damaged, ignition may no longer be smooth, and the car may suddenly stall during the driving process.

Service interval and testing

When to Replace or Test the Spark Plug#

In short, the spark plug is a very important part of the car. Spark plug materials are constantly being updated. The most low-grade nickel spark plug should usually be replaced after about 30,000 to 50,000 kilometers, while some higher-quality platinum spark plugs can be used for about 60,000 kilometers before replacement.

It is recommended that you choose spark plugs with better quality. These spark plugs generally have a lower failure rate and a longer service life.

If the situations above occur, you can choose AUTOOL SPT101 or AUTOOL SPT360 to test the spark plug, helping confirm the health of the vehicle and supporting safer driving.