What are the symptoms of a broken spark plug? How much does it cost to replace four spark plugs?

The spark plug is the lighter of the engine, but it is difficult for a clever woman to cook without rice. The engine regenerates fiercely, and it can only be left on the spot if it doesn't catch fire. Knowing the symptoms of a broken spark plug in advance can minimize losses and save economic costs.

How much is the replacement of four spark plugs

The price of spark plugs cannot be generalized, and the price of spark plugs of different materials varies significantly.Generally, iridium or platinum spark plugs are used in general models, plus the cost of working hours. Basically, it will cost three to four hundred to replace four spark plugs.Yuanabout.

1. You can buy a spark plug made of nickel alloy at a price of more than ten yuan;

2. The high-quality iridium and platinum spark plugs are only about 30-70 yuan each;

3. The price of iridium-platinum alloy spark plug is about 100-300 yuan.

Different brands have different prices. At the same time, 4s stores are more expensive than online ones. Some luxury cars cost thousands of dollars to change spark plugs. Well-known brands include NGK, Bosch, Deco, Torch, etc. Car owners should choose the brand that suits their car, otherwise the following symptoms may occur.

What are the symptoms of a broken spark plug

1. The vehicle is difficult to start

The spark plug has a lot of carbon deposits and a large ignition gap will cause ignition difficulties. Carbon deposits and large gaps require greater ignition energy. At this time, the specific ignition voltage can no longer meet the demand.

2. The vehicle frustrated

During the refueling process, the car owner noticed frequent setbacks, and at the same time felt that the car was weak and unable to keep up the energy. Or when it is not refueling, the vehicle will automatically move forward.

3. Increased fuel consumption

Abnormal ignition will cause insufficient combustion of the mixed gas and lower conversion efficiency. At the same time, more gas is required for combustion, which accelerates fuel consumption.

4. Exhaust gas pollution

Insufficient combustion gas can smell a strong smell, and even emit dense smoke at the outlet of the exhaust pipe. At this time, if there is a special measuring instrument, it will definitely detect that the harmful substances in the exhaust emissions exceed the standard.

Only one spark plug is broken. Do you want to replace all four?

If the new car has just been opened and there is an ignition problem in a certain cylinder, only a single spark plug needs to be replaced. If the 4s shop fudges you to change all, you can simply refuse. If your car has been used for a long time and the spark plug has not been replaced, it is recommended to replace the whole set at the same time. Because the engine must work in coordination with the four cylinders in order to achieve maximum efficiency, otherwise there will be many problems such as insufficient power, jitter, and loud noise.