The Spark That Lights the Check Engine Warning

Spark Plugs and the Check Engine Light

It’s exciting to talk about the spark that lights a fire, but when the topic is a faulty spark plug and the light is a glowing check engine warning, the conversation ceases to be romantic. While the check engine light message can be triggered by a number of issues, spark plugs that aren’t performing as they should could definitely be a culprit. The ASE certified technicians at Haver’s Auto Repair in Omaha, Nebraska, can accurately diagnose the source of the problem for you and make necessary repairs.

What Do Spark Plugs Do?

Spark plugs do what they sound like. They generate a spark, an arc of electricity, between two leads. These parts are not touching, but they are located close to one another, so close that the electrical current can “jump” across the gap from one side to the other. The spark created by the plugs ignites the fuel and air mixture in the engine’s cylinders, creating a small, controlled explosion that moves the pistons, turns the engine’s crankshaft, and makes the power to propel the vehicle forward.

Spark plugs are made from very durable materials. Therefore, they last a long time even under the extreme circumstances in which they operate. However, no matter how good they are, all spark plugs eventually wear out and need replacing. Signs of failing spark plugs include a reduction in gas mileage and poor acceleration. You may also experience difficulty starting your car. Further, the engine may misfire or idle roughly. And, or course, any related performance and exhaust issues may trigger the dreaded check engine warning. Although Nebraska does not currently have a required safety and emissions inspection (only VIN verification upon registration), the Department of Motor Vehicles recommends maintaining the emissions system properly. Further, a vehicle with an illuminated check engine light will not pass inspection should you need to register it in a state with such requirements.

Help for the Trouble Code

Even if you suspect that your spark plugs need changing, you shouldn’t guess at the source of the check engine warning, and you don’t have to. Bring your vehicle to Haver’s Auto Repair in Omaha, Nebraska. One of our certified technicians will use our state-of-the-art equipment to determine the trouble code generated by your car’s computer. This, combined with our expertise, will enable us to accurately diagnose the problem and make a proper repair, including spark plug relacement if that’s what’s required.

By on August 5th, 2021 in Check Engine Light