Another contributing factor would be the air/fuel mixture sensor, also generally known as the mass airflow sensor or MAF. This sensor essentially measures the amount of air coming into your engine and then adjusts the amount of fuel delivered. An improper or faulty MAF sensor would deliver an inappropriate reading of the air/fuel mixture. When this happens, especially during rapid acceleration, it causes sputtering. Even a 15% or bigger loss in sensor accuracy can result in poor engine performance, where combustion becomes inefficient.
Sometimes, the problem lies with the ignition system itself. Worn or poorly gapped spark plugs will misfire under load, resulting in sputtering upon acceleration. Spark plugs usually should be replaced within an inch of 30,000 to 50,000 miles, depending on what kind of vehicle one has. If the ignition system does not provide enough voltage to the spark plugs, partial combustion may result, hence leading to hesitation in the engine.
For detailed information on how to service your Fuel Pump, refer to Fuel Pump.
Why Is My Car Sputtering When Accelerating?
Sputtering upon acceleration is normally due to a problem with fuel delivery, the causes of which generally include a failing fuel pump. A fuel pump is supposed to maintain the required pressure of fuel delivery into an engine. Most engines usually require pressures at about 40 to 60 psi, and if the pump cannot maintain such pressure, the engine might not get enough fuel, hence leading it to sputter. Even a 10% drop in fuel pressure can cause noticeable hesitation or stalling when one attempts to accelerate.
Another very common reason is a clogged fuel filter. Blockage of a filter by this junk piece restricts the quantity of fuel allowed to flow into the engine, thereby reducing efficiency. Sometimes, a clogged filter can cut fuel flow by 25%, and that certainly shows up in performance, especially during acceleration. This can be prevented by replacing the fuel filter every 30,000 miles. In 2015, many vehicle breakdowns were reported due to faulty fuel delivery caused by clogged filters.
Sputtering can also be caused by filthy or lousy fuel injectors. The fuel spray misted by the fuel injectors must be fine to ensure proper combustion. Over time, injectors can become clogged with carbon deposits. This can reduce fuel delivery by as much as 20%. The fuel-air mixture will not be even, and this makes an engine misfire or sputter under load-especially when it is under power. Using a fuel injector cleaner can often resolve this problem if the attack is caught early.
Another contributing factor would be the air/fuel mixture sensor, also generally known as the mass airflow sensor or MAF. This sensor essentially measures the amount of air coming into your engine and then adjusts the amount of fuel delivered. An improper or faulty MAF sensor would deliver an inappropriate reading of the air/fuel mixture. When this happens, especially during rapid acceleration, it causes sputtering. Even a 15% or bigger loss in sensor accuracy can result in poor engine performance, where combustion becomes inefficient.
Sometimes, the problem lies with the ignition system itself. Worn or poorly gapped spark plugs will misfire under load, resulting in sputtering upon acceleration. Spark plugs usually should be replaced within an inch of 30,000 to 50,000 miles, depending on what kind of vehicle one has. If the ignition system does not provide enough voltage to the spark plugs, partial combustion may result, hence leading to hesitation in the engine.
For detailed information on how to service your Fuel Pump, refer to Fuel Pump.
Another contributing factor would be the air/fuel mixture sensor, also generally known as the mass airflow sensor or MAF. This sensor essentially measures the amount of air coming into your engine and then adjusts the amount of fuel delivered. An improper or faulty MAF sensor would deliver an inappropriate reading of the air/fuel mixture. When this happens, especially during rapid acceleration, it causes sputtering. Even a 15% or bigger loss in sensor accuracy can result in poor engine performance, where combustion becomes inefficient.
Sometimes, the problem lies with the ignition system itself. Worn or poorly gapped spark plugs will misfire under load, resulting in sputtering upon acceleration. Spark plugs usually should be replaced within an inch of 30,000 to 50,000 miles, depending on what kind of vehicle one has. If the ignition system does not provide enough voltage to the spark plugs, partial combustion may result, hence leading to hesitation in the engine.
For detailed information on how to service your Fuel Pump, refer to Fuel Pump.