RPM fluctuation is one of the most common problems among all kinds of cars, regardless of age. This topic has been widely discussed a million times on various automotive forums. However, no one wants to search through long discussions to find an answer to this problem.

That's why we decided to prepare an article with the 12 most common reasons that cause fluctuations in engine speed. To begin with, it should be noted that the RPM fluctuation does not have to be due to just one malfunction.