Eight Causes of Engine Sputtering

It can be really frustrating if your car, truck, or utility vehicle’s engine sputters all the time. Not only does this make it more difficult to accelerate, but it also gives you cause for concern. Vielhaber’s Garage is going to list eight common causes of engine sputtering below. Don’t worry. We can fix all of these problems.

1. Clogged Catalytic Converter

The catalytic converter has an average lifespan of 10 years. After a decade, the converter is generally clogged with carbon deposits. When this happens, the vehicle’s exhaust is pushed back into the combustion chamber. Unfortunately, this will make your engine sputter.

2. Clogged/Leaking Exhaust System

A clogged or leaking exhaust system will also make your engine sputter because, again, there is either exhaust in the combustion chamber or the system is leaking gases into the engine. You may also hear loud noises such as hissing or tapping.

3. Clogged Fuel System

A clogged fuel system will prevent enough fuel from making its way into the engine. This will directly affect your engine’s combustion. The fuel system can clog in the fuel filter, the fuel injectors, or the fuel hoses. Replacing these parts usually solves the problem.

4. Faulty Fuel Pump

Another thing that will make your engine sputter is a faulty fuel pump. If the pump is malfunctioning, it may not be sending enough fuel into the engine for the engine to sustain efficient power. This will make your engine sputter particularly when you drive fast.

5. Faulty Mass Airflow Sensor

The mass airflow sensor constantly sends data to your vehicle’s main computer chip about the amount of air that is flowing into the engine. If it is faulty and skews the data, the main computer chip may put too much air in the combustion chamber.

6. Faulty Oxygen Sensor

The same thing can happen with the oxygen sensor if it goes bad and reports incorrect exhaust oxygen levels. Unfortunately, anytime there is too much air in your vehicle’s combustion chamber, the engine will sputter because it is being fuel-starved.

7. Vacuum Leak

A vacuum leak can fill the engine with air and cause a lean fuel mixture. This means that there is not enough fuel in the combustion chamber. A leaking vacuum hose can also create problems with your engine’s RPMs.

8. Worn Spark Plugs

Finally, worn spark plugs can make the engine sputter because they will not fire in the correct sequence. In some cases, some of the spark plugs may not fire at all.

Call Vielhaber’s Garage in Findlay, OH, today to schedule an appointment for your automobile if your engine is sputtering all the time.

Photo by deepblue4you from Getty Images Signature via Canva Pro