How long can i drive with a misfiring cylinder A faulty cylinder is one of the cylinders in an engine that is not functioning as it should. This usually means that a particular cylinder is no longer firing at the correct time. Because of this, all the other cylinders will work harder to compensate for this, which can lead to many other problems. If you have noticed that your car is running slowly but you can't identify the problem, it could be a damaged cylinder. Damaged cylinders cannot be ignored. Reading this article could save you time and money on repairs. Here are the signs that can indicate if you have a cylinder misfire problem 1. No spark A cylinder misfire is essentially the same as a faulty spark plug. There is fire in the cylinder, but it is not strong enough. This leads to a misfire or complete engine failure. Several problems can arise. There may be too much oil and the spark plug may burn too quickly. There may be a problem with the fuel. The fuel may be too rich or ...