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What Does Misfire Feel Like?

Maya Lin-Takahashi • • 7 min read
What Does Misfire Feel Like?
Technically, a misfire is the result of incomplete combustion (or zero combustion) inside one or more of an engine's cylinders. But to you, the driver, the problem will usually feel like hesitation or shaking when the car is running. On modern vehicles, the check engine light will also pop on when there's a misfire.

How do you know if your car is misfiring?

These are the signs of a misfiring engine that you need to look out for:

  1. The engine loses power.
  2. It is difficult to start the engine.
  3. Fuel consumption rises.
  4. Emissions increase.
  5. The engine makes popping sounds.
  6. The intake or exhaust manifold backfires.
  7. The engine jerks, vibrates or stalls.

What does misfiring spark plugs feel like?

Engine Misfires

A misfiring engine is a big sign that one or more of your spark plugs are not firing properly. A misfire may sound like a sputtering sound or feel like a sudden loss of power or violent shaking.

Maya Lin-Takahashi
Author

Maya Lin-Takahashi

Maya is a hardware enthusiast who tests and reviews smart home devices, smartphones, wearables, and audio gear. She focuses on practical consumer value and build quality.