Updated at: 07-03-2022 - By: micdot

Sputtering starts are a common occurrence for drivers. If you’re a busy driver who has to get somewhere quickly, this is likely to be an aggravating experience.

Do not be alarmed, because we will address all of the reasons for your car’s sputtering in this article. Let’s get started, shall we?

Why Is My Car Sputtering When I Start It?

Your car may be sputtering for a variety of reasons. We’ve included a list of each of them for your perusal. Continue reading to find out more.

1. You Might Have A Weak Battery

It’s possible that you have a low battery issue. It’s possible that your motor will sputter when you try to start it if your battery isn’t in perfect condition. It’s also worth noting that if the engine is already running, it will require less power from the battery.

In addition, operating the automobile will charge it up at some point, so it will take less electricity. It is because the engine is beginning that the sputtering is occurring. In the event that you have a weak battery, you must fully recharge it. If running the engine isn’t curing the problem, you’ll need to investigate more. Because the engine is operating, the battery is receiving a small charge.

2. You Can Have Faulty Spark Plugs, Dirty Spark Plugs, Or Dirty Fuel Injectors

You may also want to check for faulty spark plugs while you’re doing this. To begin, see if you need to change your spark plugs. Check to see if it’s malfunctioning or damaged. You could also examine the condition of your spark plugs. A clean spark plug is essential for your engine’s performance, so don’t let it get dirty. If it’s unclean, it might not generate enough spark.

Dirty fuel injectors could also have been the problem. Unfortunately, dirt and filth can get into your engine and other parts of your car. They are frequently in contact with sand and other filth. As a result, it is imperative that you thoroughly clean them as often as possible.

3. You Can Have Faulty Sensors, Dirty Sensors, Or Your Air Filter Is Clogged

In order to start your car, you must have all of the sensors. For instance, you have a mass airflow sensor, a fuel injection sensor, and an oxygen sensor on board. All of these sensors are required in order for your car to start properly.

You’ll notice a sputtering sound in your automobile if one of these sensors isn’t operating properly. To make matters worse, if any of these sensors are particularly soiled, you will need to clean them as well. The sensor must be cleaned as well if it is dirty. You should also inspect the air filter to see if it is clogged. Use soap and water to remove the blockage.

4. You Might Have A Bad Fuel Pump

In addition, see if the gasoline pump is malfunctioning. Your fuel pump is responsible for transferring the gas from the tank to the combustion chambers.

When a gasoline pump is in poor condition, it may not be able to move the gas effectively. If your gas tank is low, you may also see sputtering.

5. You Might Have An Exhaust Leak, Or Your Gaskets Might Be Leaking

There may be an exhaust leak if your automobile is sputtering. Anywhere in the exhaust system could have a leak.

It’s everywhere, so don’t worry about it. There are a variety of possible locations, including underneath the vehicle.

6. Your Catalytic Converter Might Be Failing

The catalytic converter may also need to be checked. When you start your car, it will sputter if your catalytic conversion is defective. There is no time to waste in getting a new catalytic converter installed in your vehicle.

7. Your Ignition Switch Might Be Malfunctioning

You could also check to see whether your ignition switch is malfunctioning. In the event of a malfunctioning ignition switch, your vehicle’s engine will not receive the proper command to start. Your car’s motor will splutter as a result.

How Do I Fix My Car From Sputtering?

Here are a few things you can do to stop your automobile from sputtering in the future. The first step is to review the following instructions.

1. First Step

Check your secondary ignition system’s components. To begin, look for any burned or damaged insulation on the spark plug wires, as well as any damaged or missing insulation. Look for any wire conductors that have been cut or otherwise damaged.

2. Second Step

The ignition coil’s resistance must be measured with an ohmmeter. It is necessary to replace oil if it does not meet the manufacturer’s criteria.

3. Third Step

Check the condition of your fuel injectors. Start your car. If the engine is idling, use a mechanical stethoscope to listen closely to the fuel injectors.

You should hear a clicking sound if the fuel injectors open and close. The fuel injector may be defective if you don’t hear a clicking sound. Replace them if necessary.

4. Fourth Step

Start your car. Your throttle body injectors needs to be checked for their fuel spray pattern.

5. Fifth Step

Check the condition of the vacuum hoses that link the engine components. To begin, look for any hoses that are damaged.

Your car’s performance will suffer if there is a vacuum leak. The sooner you fix it, the better.

6. Sixth Step

Replace your fuel and air filters according to the manufacturer’s instructions. Replace your owner’s manual if you can’t find it.

Car Sputters When Starting Then Dies: What To Do?

If you notice that your automobile is sputtering and then shutting down, you should examine your engine immediately. In order to avoid any severe damage to your vehicle, you must first address the issue at hand. If your automobile is sputtering and starting to die, here are some things you can do.

1. You Need To Replace Your Spark Plugs

An engine stall may be caused by broken spark plugs. Your engine is powered by a spark from your spark plug. If your spark plug isn’t producing enough spark, you’ll need to replace it.

2. You Need To Replace Your Fuel Injector Or Your Sensor

You should replace a damaged fuel injector or faulty sensor as soon as possible.

3. You Need To Check For Any Leak In Your Fuel Pump

The air-fuel mixture will alter if you have a leak in your fuel pump. There will be a problem with combustion if the combination is out of whack. So inspect your fuel pump for any leaks.

Car Sputters When Starting And Idling: What To Do?

Spark plugs must be checked. Check to see if they’re in good shape and working properly. Your spark plugs may be defective, and you may be wasting fuel because some of your fuel injectors are leaking.


When your car is sputtering, you will feel it. It is possible that your car is sputtering and then dying when you switch it on. You need to find out what’s wrong right away.

It is possible that your spark plugs are defective. Other issues with your components are possible, however.