The Humble Spark Plug

Published Date: 19th Jul 2023

Image of two Spark PlugsA car spark plug plays a crucial role in your vehicle's engine. It is responsible for initiating the combustion process by igniting the fuel-air mixture in the combustion chamber, ultimately generating the power required for your vehicle's operation.

Spark plugs are available in different types but function on the same fundamental principle. When the spark plug ignites, it produces a spark that initiates the combustion of the air-fuel mixture. This spark is generated by a high-voltage spark produced by the vehicle's ignition system.


New Car Discounts and Offers


The spark plug is situated within the engine's combustion chamber, securely screwed into the cylinder head, and comprises of two electrodes: a ground electrode and a centre electrode. The ground electrode is connected to the vehicle's ignition system, while the centre electrode is linked to the spark plug wire.

The high-voltage spark jumps between the two electrodes when the spark plug fires. This spark ignites the air-fuel mixture, which causes the engine to fire.

Spark plugs need to be replaced periodically. The exact interval for replacement will vary depending on the make and model of your car and your driving habits. However, most spark plugs should be replaced every 30,000 to 60,000 miles.


Why is the Spark Plug so important?


The spark plug is a vital component, despite its simplicity. Its crucial role lies in igniting the air-fuel mixture within the combustion chamber, thereby generating the power required to propel your car.


If the spark plug malfunctions or fails, it can lead to several problems, including:



In certain instances, a malfunctioning spark plug can lead to a complete engine shutdown. Hence, it is imperative to conduct regular inspections and maintenance of the spark plug to ensure optimal operation and longevity of your vehicle's engine.


What should I do if I notice problems with my Spark Plugs?


If you notice any problems with your spark plugs, it is important to have them checked by a qualified mechanic as soon as possible. Some of the signs that your spark plugs may be faulty include:

 Image of a Car Engines Spark Plugs


If your spark plugs are faulty, they can cause problems with your car's engine. These problems can range from minor to major, leading to costly repairs that should be addressed promptly.

A qualified mechanic will diagnose if you have a problem with your spark plugs and recommend the best course of action. In most cases, the spark plugs will need to be replaced. However, in some cases, the mechanic may be able to clean or repair the spark plugs.

It is important to inspect your spark plugs regularly, even if you are not experiencing any problems. Spark plugs have a limited lifespan and should be replaced every 30,000 to 60,000 miles. Following this maintenance schedule can help ensure your car's engine runs smoothly and efficiently.


Here are some tips to help you keep your oil pressure sensor in good working order:



By following these tips, you can help ensure your Car Spark Plugs are properly maintained and your car's engine is protected from damage.


Different Types of Spark Plugs


There are four types of Spark Plugs, and they are explained below:



The spark plug type you need will depend on your car's make and model. You can usually find the correct spark plug type by checking your car's owner's manual.


When selecting spark plugs, it is crucial to take into account the following factors:



Ensuring the use of suitable spark plugs for your vehicle is imperative. Employing incorrect spark plugs can lead to engine problems, including misfires and compromised fuel efficiency.


Which type of Spark Plug is better?


Your specific requirements and preferences determine your car's ideal spark plug type. If you seek an affordable spark plug that typically lasts about 30,000 miles, consider opting for a copper spark plug.

If you want a spark plug with a longer lifespan and better fuel economy, then a platinum or iridium spark plug is a better choice. An iridium spark plug is usually the best option if you are looking for a spark plug that offers the best fuel economy and performance.

If you are still determining the appropriate spark plug type for your car, it is advisable to seek guidance from a certified mechanic. They possess the expertise to evaluate your requirements and provide recommendations for the optimal spark plug that aligns with your vehicle.


Common Problems with Spark Plugs


Copper spark plugs:

Erosion: Over time, the electrodes on copper spark plugs may undergo corrosion, resulting in misfires and diminished performance.

Corrosion: Copper spark plugs can corrode in harsh environments, leading to misfires and decreased performance.


Platinum spark plugs:

Premature wear: Improper gap settings can lead to premature wear of platinum spark plugs. It is essential to ensure proper gap alignment to maintain optimal performance.

Corrosion: Platinum spark plugs can corrode in harsh environments, leading to misfires and decreased performance.


Iridium spark plugs:

Expensive: Iridium spark plugs, renowned for their superior quality, are often priced higher than other types, making them a less cost-effective choice for budget-conscious motorists.

Brittle: Iridium spark plugs are brittle and can be easily damaged if improperly handled.


Dual electrode spark plugs:

Expensive: Dual electrode spark plugs are more expensive than traditional spark plugs.

Not as efficient: Dual electrode spark plugs are less efficient than iridium spark plugs.


Choosing the Right Spark Plug



After considering all these factors, you can proceed with the selection of suitable spark plugs. A wide range of brands and types are readily available, ensuring compatibility with both specific requirements and financial considerations.


Here are some additional tips for choosing spark plugs:



Following these tips, you can choose the best spark plugs for your car and keep it running smoothly.


New Car Deals from Uk Car Discount


Discover your perfect car with the guidance of our team of expert sales professionals. From start to finish, we'll work with you to find the ideal vehicle to match your needs. Contact UK Car Discount today and explore our wide selection of New Cars at Amazing Discounts.


Call us today at 0161 946 3500 to discuss how we can guide you with your Next New Car.