Sputtering Engine? The Common Causes Explained

sputtering engine

You’re driving down the road, minding your own business, and all of a sudden, you feel it: your engine is sputtering. It’s clear that something is wrong, but you can’t quite tell what. 

And that’s what’s brought you to this article: you want to know what causes a sputtering engine. In truth, a number of problems can lead to this. So, without further ado, let’s get into the specifics of car engine problems below. 

Damage to the Exhaust Manifold

One of the more common causes of engine sputtering is a damaged exhaust manifold. The exhaust manifold moves gas fumes out of the vehicle. If it’s damaged, it can cause these fumes to leak, therefore resulting in a sputtering engine. 

A Clogged Catalytic Converter

The responsibility of the catalytic converter is to convert carbon monoxide to carbon dioxide before it exits the exhaust pipe. Unfortunately, over time, the catalytic converter can become clogged. When this occurs, it can cause gases to back up into the exhaust system, thereby causing the engine to sputter. 

A Malfunctioning Mass Airflow Sensor

The mass airflow sensor regulates how much air flows into the vehicle’s engine. If too much air flows into the engine, it will disturb the combustion process and therefore lead to sputtering. As such, if sputtering is present, it could be because the mass airflow sensor is malfunctioning in some way. 

Old Spark Plugs

Old spark plugs can cause engine problems as well. This is because they’re used to initiate the combustion process. If they’re firing improperly, they will lead to improper combustion, thereby leading to a rumbling sound from the engine. 

If your spark plugs aren’t old, they could still behave in a dysfunctional manner. This is particularly true in cases where the vehicle’s engine control module breaks down. 

Clogged Fuel Injectors

The fuel injectors are responsible for injecting fuel into the combustion chamber. Over time, however, fuel injectors can become clogged. When this happens, they can’t inject enough fuel, thereby leading to improper combustion and, of course, engine sputtering. 

Reduced Vacuum Pressure

The last reason for engine sputtering is reduced vacuum pressure. See, for a vehicle to run properly, its components must be adequately pressurized. When pressure is lost, many components don’t receive enough power, causing the engine to sputter. 

Vacuum leaks cause most vacuum pressure reductions. These can be patched up fairly quickly, allowing you to get your vehicle back in working order sooner rather than later. 

Dealing With a Sputtering Engine in Limerick PA?

Are you dealing with a sputtering engine? Do you need car engine repairs in Limerick, PA? If so, Limerick Auto Body might be able to help. 

Depending on what’s causing your engine to sputter, we might be able to solve the problem for you. Contact us today to schedule an appointment!