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When it comes to auto repair, drivers often take their car to a mechanic to fix issues with components like the brakes or transmission. However, many people often overlook the spark plugs, but they are essential for the function of any vehicle. To learn more about this component, the guide below explains their importance for a car.

What Are Spark Plugs?

Spark plugs are small electrical components inside the engine’s cylinder head that connect to the ignition coil. They generate a spark to ignite the fuel and create combustion using a high voltage at extreme heat. This allows your vehicle to start and begin using fuel to run.

Why Are They Necessary?

auto repairWithout fuel combustion, your car will not start. The spark plugs start the chain reaction that moves the engine’s pistons, which powers the vehicle. If the spark plug isn’t working, the car won’t turn on or move. Faulty or worn out plugs will lead to cold starting, which is when the engine and oil are not warm enough to sufficiently power the vehicle. The car can then turn off, and you risk damaging the engine components by starting it again.

When Should You Replace Them?

Worn out spark plugs will give off several warning signs that they need a replacement. For instance, you may hear strange knocking or rattling noises when the spark plugs misfire, causing the pistons to malfunction. It may also be harder for the car to start, or it may feel jerky as you drive. The failing spark plugs will reduce the vehicle’s performance, especially when accelerating and changing gears. Since the car won’t get the correct heat-producing spark at the appropriate times, you’ll end up wasting fuel, and your fuel economy will drop. 

 

Don’t let faulty spark plugs ruin your car’s performance. The auto repair experts at Mullanphy Tire & Automotive in Florissant, MO, offer clients a full range of services at low prices. Whether you need routine auto maintenance, tire rotation, brake service, or other auto repairs, these reliable and knowledgeable technicians can do the job. Call (314) 921-4961 today to receive an estimate, or visit their website to learn more about all they offer.

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