It can be frustrating and scary if your engine is sputtering all the time, especially if the check engine light comes on, as well. Techway Automotive is going to list the common reasons why engines sputter below. We can repair any of the problems we are going to discuss, so don’t worry.
Clogged Catalytic Converter
If you drive an older automobile, it’s possible that your catalytic converter is clogged. When the catalytic converter gets clogged, the exhaust backs into the combustion chamber and prevents additional combustion. Unfortunately, this will make your engine sputter as it struggles to run.
Clogged Exhaust System
The same is true with a clogged exhaust system. If the exhaust is not flowing through the system and being released through the tailpipe, it will remain in the combustion chamber and prevent fresh air and fuel from being burned. This can make your engine sputter, especially at high speeds.
Clogged filters can also create engine sputter. Particularly, if your air filter is clogged or the fuel filter is clogged, your engine will sputter and struggle to run. The reason why is that the engine is not getting enough air or fuel, respectively, to maintain efficient combustion for operation.
Faulty Fuel Pump
A faulty fuel pump can also make the engine sputter if it is not providing the engine with enough fuel for operation. As with the clogged exhaust system, you will notice that your engine sputters even more when you are driving at high speeds. This is because the fuel pump is unable to supply the necessary fuel.
Another thing that can make your engine sputter all the time is a problem with the mass airflow sensor or the oxygen sensor. If these sensors have gone bad and are reporting incorrect data to the engine control module, the module will make unnecessary adjustments in the combustion chamber that will make the engine sputter.
A vacuum leak can also cause engine sputtering because it is introducing too much air into the engine. This starves the engine of fuel and, consequently, makes it harder for it to operate. Aside from sputtering, you may also notice that your engine has a rough idle.
Worn Spark Plugs
Finally, if the spark plugs need to be replaced, the engine will misfire. This misfiring feels like sputtering. Replacing the worn spark plugs usually solves the problem.
Techway Automotive is in Blakely, GA, and also in Opp and Dothan, AL, and we can help. Call us today if your engine is sputtering all the time.