An engine misfire can be caused by bad spark plugs or imbalanced air/fuel mixture. Driving with a misfire isn't safe and can damage your engine.

Will driving with a misfire damage my engine?

It is not advisable to be driving any vehicle with a misfiring cylinder as this can cause irreparable damage to the engine of the car. The most common cause of a cylinder misfire is bad spark plugs or the imbalance of air or fuel mixture. Note that driving with a misfiring cylinder causes a major power loss in the car.

What happens if you don't fix a misfire?

A misfiring cylinder can cause a proportional loss of power. For example, if one cylinder misfires in a four cylinder engine, the car will lose 25 percent of its power. ... One of the biggest signs your cylinder is misfiring is the loss of power along with odd vibrations.