How to tell if it s time to change the spark plug

There are three ways to tell how to tell a spark plug:First, the power of stepping on the accelerator is significantly weaker. If you notice that you don't have to press the accelerator pedal while driving, or if you feel that the engine is shaking unconventionally when accelerating, it is likely that the spark plug performance has decreased.

Second, the vehicle is not shaking normally when idling, you can observe the working state of the engine at the traffic light intersection, if the engine is running at idle speed, the engine has a relatively large shake, it may also be a problem with the spark plug.

Thirdly, the engine is difficult to start. If the cause of the general difficulty of ignition in winter or poor engine maintenance can be ruled out, if the engine is difficult to start, it is obvious that there is a problem with the ignition system. And if there is an ignition for no reason, it is likely that there is a problem with the spark plug.

How to judge that the spark plug should be changed: 1See if the engine can start normally, and whether the starter will often stall for no reason.

If it does not start properly, the spark plug needs to be replaced. After the spark plug of the car is damaged, the spark plug is difficult to cooperate with various parts of the car, which makes it difficult to start the car. 2.

Look at the engine shake, 3Check the hand wax electrode gap of the spark plug, 4If the surface of the spark plug is damaged

The spark plug is one of the key components that produce spark ignition combustion gasoline. When the spark plug aging reaches a certain level, a series of fuel combustion problems will occur, such as difficult starting, slow acceleration, increased fuel consumption, increased engine noise, etc. Here are some signs that can tell if a spark plug is leaking and should be replaced:

1.Abnormal sound: If the engine noise increases significantly, it may be caused by severe spark plug wear.

2.Difficulty in starting: If the engine is difficult to start, it may be due to excessive carbon deposition in the spark plug or severe wear of the electrode, and the spark plug needs to be replaced in time.

3.Unstable idling: If the engine is unstable at idle, or even stops, it may be due to spark plug electrode wear.

4.Poor acceleration: If the vehicle notices a weakened response or a sense of frustration when accelerating, it may be due to severe spark plug wear.

5.Increased fuel consumption: If you notice a significant increase in fuel consumption without any obvious cause, it may be due to excessive aging of the spark plug or carbon deposit.

Overdue use of spark plugs; decreased power performance; Weakness in climbing; difficulty in ignition; frequent engine stalls; It is possible that there is a problem with the spark plug, and one or more of the spark plugs are damaged, resulting in a decrease in power performance, and it should be replaced immediately.

The electrode gap of the spark plug changes, generally, the gap of the spark plug varies according to different models, generally speaking, it can be adjusted according to the car manual, if the gap between the electrodes is too large, the spark plug will not ignite, resulting in the stalling during driving. If the gap between the electrodes of the spark plug is too small, the spark plug will be prone to electrode ablation.

Check whether there is carbon deposit, oil stains, etc. on the spark plug, or blackening and glaze layer, which will also obviously affect the ignition effect of the spark plug, you can clean it, if it still doesn't work, you need to replace the spark plug.

The life cycle of the spark plug.

The spark plug has a replacement cycle, the ordinary nickel alloy spark plug needs to be replaced once every 20,000 kilometers, the platinum spark plug needs to be replaced at about 40,000 kilometers, and the iridium spark plug can be replaced after about 6-80,000 kilometers. Therefore, the replacement cycle depends on what type of spark plug you have, generally only high-end cars will use iridium spark plugs, and most models use nickel alloy or platinum spark plugs.

Summary. Pro, judgment method: 1. See whether the engine can start normally to see whether the cold car starts smoothly and whether there is any special obvious"Frustration", can it be ignited normally.

Pro, judge the square vertical lead method: 1. See if the positive fiber attack engine can start normally to see if the cold car starts smoothly, and whether there is a particularly obvious brother"Frustration", can it be ignited normally.

2. Look at the engine shake to keep the car idling, if the engine can run smoothly, it means that the spark plug can work normally; If it is found that the engine has intermittent or continuous shaking, it will be abnormal"Sudden protrusions"sound, it means that there may be a problem with a spark plug in a certain reserve, and the spark plug needs to be replaced. 3. Check the electrode gap of the spark plugWhen you remove the spark plug, you will find that the spark plug has a discharge electrode, the electrode has a normal consumption, if the gap is particularly large, it will lead to a normal discharge process (the normal spark plug gap is, this situation will cause your engine to be weak. At this point, it's time to replace it.

4. Observe the color. (1) If it is russet or rust colored, it means that the spark plug is normal. (2) If it is oily, it indicates that the spark plug gap is out of balance or too much oil, and the high-voltage line is short-circuited or open-circuited.

3) If it is smoky and black, it means that the spark plug is selected incorrectly or the mixture is thick, and the engine oil is channeling. (4) If there is a deposit between the top and the electrode, and the deposit is oily, it proves that the cylinder channel oil has nothing to do with the spark plug; If the sediment is slippery and black, it means that the spark plug has deposited carbon and bypassed; The grey color of the deposits is due to a lack of fire caused by additives in the gasoline covering the electrodes. Dandong (5) If the spark plug is severely ablated, and there are scars, black lines, cracks, and electrode melting at the top, this indicates that the spark plug has been damaged and must be replaced immediately.

Extended Information: Factors that lead to shortened spark plug life: 1

The quality of gasoline is not good, and I often go to some private, small gas stations with unqualified gasoline quality to refuel, resulting in poor combustion, which is the most harmful. 2.The vehicle works stupidly for a long time, often full of people, and even overloaded, often pulling heavy goods, and is used as a truck.

3.Frequent violent driving, from time to time to get a floor oil. 4.

Vehicles often run in some bad road conditions, such as often used to run construction sites, mountain roads, muddy roads, etc. These factors will lead to a shortened life of the spark plug, and the replacement cycle needs to be a little earlier. If the car often runs at high speeds, or runs in good road conditions, the replacement cycle can be postponed a little.

Summary. Dear, I'm glad to answer for you! Some ways to tell if a spark plug needs to be replaced:

1.The car has difficulty starting. If your car has difficulty starting, lacks power or engine shaking, it is due to aging or malfunctioning spark plugs.

2.Increased fuel consumption, if the spark plug fails, the engine does not burn the fuel completely, which increases fuel consumption and makes your car more fuel-efficient. 3.

Engine failure lights. If the engine fault light illuminates or prompts you to check the engine system, it is due to a faulty spark plug. 4.

The mileage reaches the recommended replacement mileage. All car manufacturers provide recommended mileage or time intervals for spark plug replacement, and you can replace them according to the manufacturer's recommendations <>

How to tell if it's time to change the spark plug

Dear, I'm glad to answer for you! Some methods to determine whether the fire section flower extinguishing plug needs to be replaced: 1

The car has difficulty starting. If your car has trouble starting, lacks power or engine shakes, it is due to spark plug digestion or malfunction. 2.

Increased fuel consumption, if the spark plug fails, the engine does not burn the fuel completely, which increases fuel consumption and makes your car more fuel-efficient. 3.Engine failure lights.

If the engine fault light illuminates or prompts you to check the engine system, it is due to a faulty spark plug. 4.The mileage reaches the recommended replacement mileage.

All car manufacturers provide recommended mileage or time intervals for spark plug replacement grips, which you can <>replace according to the manufacturer's recommendations

Dear, what you need to pay attention to when replacing the spark plug is as follows: 1Pay attention to safety when disassembling and assembling spark plugs.

Before replacing the spark plugs, be sure to turn off the engine and wait long enough for the sails to cool down. Try to choose indoors or outdoors with low wind speed, park the vehicle, pull the handbrake to prevent accidental movement, and use the cheese tool to disassemble and replace it safely. 2.

Dismantle the full set of inspections. During disassembly, the spark plug's electrode wear, whitening, and carbonization should be inspected, and other problems that need to be repaired or replaced should be ruled out. 3.

Pay attention to the tightening strength when installing the spark plug. The new spark plug should be screwed evenly into the aluminum cylinder head, not too tight or too loose; Make sure that the bottom of the spark plug and the cylinder head are in good contact; When installing for the first time, it should be screwed to 20-25Nm first, and then further screwed in with the correct torque according to the requirements <>of the vehicle manufacturer

1. There is an obvious sense of frustration when the vehicle starts

The process of starting a normal vehicle is very smooth, but if the spark plug fails, the ignition process becomes very difficult, and the vehicle will have obvious shaking and stuttering when starting. If your vehicle has a noticeable sense of frustration when it starts, and the vehicle keeps roaring but doesn't catch fire, there may be a spark plug problem.

2. The engine shakes during driving

The vehicle will not shake too significantly during normal driving, unless the three-cylinder engine will have a slight noticeable shake at idle. If there is an unknown shaking of the vehicle during driving, and the cause of carbon deposition in the engine is ruled out, it may be a spark plug problem.

If there is a serious carbon deposit in the spark plug, the power of the vehicle will be strong and weak, and the feedback to the body is that the body of the vehicle is constantly shaking during driving.

3. Sudden increase in vehicle fuel consumption

Spark plugs are not only related to whether the vehicle can ignite a fire, but also affect the adequacy of fuel. If the spark plug fails, the gasoline cannot be fully burned, and the vehicle's dynamic performance will not only decrease, but also increase the vehicle's fuel consumption.

Replacement cycle of spark plugs.

The spark plug used on the ordinary household scooter is generally made of ordinary nickel alloy, the life of this spark plug is relatively short, generally 20,000 kilometers should be replaced, at most not more than 40,000 kilometers. Intermediate and above models generally use platinum spark plugs, which have a longer life than ordinary nickel alloy spark plugs, and can generally be used for 450,000 kilometers.

The best type of spark plug is the iridium spark plug, which has a particularly long service life and generally needs to be replaced after 680,000 kilometers. However, this kind of spark plug is also more expensive, and only some top luxury cars will use this kind of spark plug.

The spark plug is an important part of the engine ignition system, and its normal operation is closely related to the engine's performance, fuel economy, emissions, etc. If the spark plug is aging, it will affect the ignition quality of the engine, resulting in problems such as engine starting difficulties, unstable idling, increased fuel consumption, and decreased power. Therefore, regular replacement of the spark plug is an important measure to keep the engine in good working order.

Normally, the replacement cycle of the spark plug is 2-3 years or 10-200,000 kilometers. If it is found that the silver mill is difficult to start, shakes during driving, increases in fuel consumption and other abnormal conditions before starting, it may be caused by the aging of the spark plug, and you should go to the 4S shop or maintenance shop in time to check and replace the spark plug.

Here's how to determine that a spark plug needs to be replaced:

1. Difficulty in starting the car: If the spark plug fails, the car cannot be started, and the spark plug needs to be replaced as soon as possible.

2. The car often shakes during driving: it means that the spark plug has serious carbon deposition and needs to be replaced as soon as possible.

3. The car is weak to climb the slope: the spark shed is stuffed and the carbon deposit is too much, which leads to insufficient fuel combustion and reduces the power performance of the engine.

4. High fuel consumption of automobiles: spark plugs are abnormal, fuel consumption will increase significantly, spark plugs are an important component of the ignition system of gasoline engines, which will introduce high-voltage electricity into the combustion chamber, and make it skip the electrode gap and produce sparks, so as to ignite the combustible mixture in the gas cylinder.

Spark plug replacement process and precautions

Replacement process: 1. Open the car cover, disassemble the engine panel, and you can see the cylinder line.

2. Pull out the cylinder wire directly by hand, and pay attention to a cylinder wire corresponding to a spark plug.

3. Unscrew the spark plug with an extension sleeve.

4. Install the new spark plug. The normal color of the electrode of the spark plug is gray-white, if the electrode is burned black and attached to the carbon deposit, it means that there is a fault, the spark plug can be turned on with the cylinder body during the inspection, and the spark plug is connected with the high-voltage wire, and then the ignition switch is turned on to observe the high-voltage electric jump position, if the electric jump position is in the spark plug gap, it means that the spark plug works well, otherwise it needs to be replaced.

Precautions when replacing spark plugs:

When removing the high-voltage distribution line, it is necessary to mark it according to the position of each cylinder to avoid confusion.

Use the spark plug sleeve to remove the spark plug in turn, and when removing it, pay attention to see if there are any coincidental leaves and dust on the outside, and be sure to clean it up.