What Can Cause Engine Misfire?

One of the most common engine problems reported to mechanics across the country is an engine misfiring. The car suddenly jumps, then regains its pace, only to continue doing the same thing each time you accelerate. An engine misfiring can be nerve-wracking experience.

An engine misfiring can be caused by numerous factors, but there are common reasons that can cause this malfunction.

However, before checking to see the problems causing a misfire, it should be checked whether the car is misfiring or not. At times, the engine isn’t actually misfiring, but is indicative of other problems with the vehicle. One of the most common misconceptions involves a driver thinking a car is misfiring due to the jerkiness of the drive, when it is actually the transmission that is bad. As always, it is helpful to take it into a licensed professional!

Ignition Problems

The first of these common problems can be an issue with the ignition. In particular, the spark plugs, cables, ignition coils, and other parts involved in starting the car necessarily wear down over time. While at first this only results in a weaker spark—causing the misfire to be nearly unnoticeable at first—over time it can completely stop the ignition process. At times, the misfire can cause a loud bang to occur when starting the vehicle.

Can Fuel be a Factor?

The second major issue that can cause a misfire is a problem with the fuel. In particular, the chemical mix between gas and air needs to be as exact as possible. An engine operating normally needs a mixture with more fuel than air. When the ratio goes out of whack, the misfire can be felt while the car is idling, and can seemingly disappear when you are driving the car.

Mechanical Failures

The third major issue is the obvious one: a mechanical failure. Piston rings that are too worn, valves failing, a head gasket that leaks, or fuel injectors gone bad can all cause the engine to misfire. Luckily, mechanical misfires are easily recognizable, causing the car to misfire in such a way that it feels like driving over a gravel road. Mechanics commonly call it a “thumping” feeling that is maintained at whatever speed the vehicle is traveling.

As mentioned earlier, it may be helpful to take the car into a mechanic to get the problem checked out. Oftentimes, if the engine is simply misfiring, fixing can be done by yourself. At other times, however, a deeper problem may be present.

Contact Scott’s Collision in Paris, TX Today!

We have over 20 years of experience and our team of skilled technicians are committed to returning your vehicle in perfect condition. Contact Scott’s Collision Repair today or give us a call as 903.785.2524 to schedule your appointment!