What Causes Fluctuating RPM at Idle? Common Reasons Your Car’s Engine Rev Goes Up and Down - Sassy Feeds
This article from Sassy Feeds explains the common causes of fluctuating RPM at idle, such as vacuum leaks, dirty throttle bodies, and sensor issues. It provides insights into the symptoms and potential fixes for each problem, emphasizing the importance of addressing the issue to prevent engine damage and improve fuel efficiency.
If your car’s RPM goes up and down while idling, it’s a sign something isn’t right under the hood. 🚗 Fluctuating idle speed can be caused by vacuum leaks, a dirty throttle body, failing sensors, ignition problems, or fuel system issues. Left unchecked, it can lead to stalling, poor fuel economy, and expensive repairs. This guide explains the most common causes, warning signs, and simple fixes to help you understand what your engine is trying to tell you.
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