Question: What Does It Mean When Your Car Sputters??

If your car sputters when you step on the gas, it’s crying for help.

A sputtering car might mean you’re about to run out of gas, or it could point to something more serious like an issue in the fuel or exhaust system, including dirty or worn-out parts.

What causes a car to sputter when stopped?

A faulty mass airflow sensor or oxygen sensor could be incorrectly calculating the air/fuel mixture. Dirty or clogged fuel injectors causing fuel puddling instead of atomization can cause a stumble at idle. Low fuel volume could also be an issue or a faulty engine computer if the issue happens even on a cold startup.

Why is my car chugging when I accelerate?

The chugging is being caused by either the fuel monitoring system (fuel injectors or throttle body injection) is metering too much fuel into the cylinders or the fuel filter could be plugged up causing the fuel system to drop in volume. Try throttling the engine when running from an idle and not driving the van.

What causes sputtering?

There are a lot of different reasons which could cause a sputtering engine, here are a few of the most common symptoms.

  • Faulty spark plugs.
  • Dirty fuel injectors.
  • Vacuum leak.
  • Dirty mass airflow sensor.
  • Exhaust system leaks.
  • Faulty catalytic converter.
  • Dirty oxygen sensors.
  • Worn out seals/gaskets.

Photo in the article by “Wikipedia”