Monthly Archives: April 2021

What is An Engine Misfire?

What is An Engine Misfire?

Engine misfires are on the list of annoying vehicle issues accompanied by horribly loud sounds. Whether it's been your own car or someone driving around town, the loud pop that a misfire makes is unmistakable. After the sound comes to the smell of hot gas and oil, cementing the notion that something is very wrong. What that something is can be tricky. Misfires happen when there's a failed combustion within the engine. Your pistons work with the fuel and ignition systems of your vehicle to create small controlled explosions inside each cylinder. This creates power and force to drive the piston back up and keep repeating over and over for consistent engine power. When any of those cooperating systems fail, you get a misfire. It could be a bad coil, ignition wire, or spark plug which means the explosion isn't being triggered properly. Another option would be that the air/fuel mixture created doesn't have the correct ratio needed for the right level of combustion. Getti ... read more