Monthly Archives: July 2022

What are the Symptoms of Bad or Failing Spark Plugs?

What are the Symptoms of Bad or Failing Spark Plugs?

Spark plugs are responsible for delivering the spark that ignites the air-fuel mixture in your engine cylinders. They are small, but they play a role in how effectively and efficiently your engine operates. Here are symptoms of bad spark plugs: Engine Misfire A failed spark plug can cause a misfire because it won't send electricity through to ignite the fuel mixture. A bad ignition coil or plug wire will also cause your engine to misfire. Another cause of a misfire is the fuel injector or fuel pump problem. A faulty fuel injector will cause the engine to run lean, while if you have a faulty fuel pump, you might experience too much pressure in the cylinders. It could lead to overheating or even combustion problems. Poor Fuel Economy Poor fuel economy is a common problem caused by many factors, including a bad spark plug, poor fuel filter, or even a faulty fuel pump. Although these symptoms are not always directly related to the spark plugs, they can all point to crucial problem ... read more