6 Reasons Your Engine Revs Up and Down at Idle | RPM Fluctuations While Car is Parked скачать в хорошем качестве

6 Reasons Your Engine Revs Up and Down at Idle | RPM Fluctuations While Car is Parked

Does your car's engine sputter and jerk erratically while idling? This can be caused by a fluctuating RPM (revolutions per minute). In this video, we'll troubleshoot the 6 main culprits behind unstable RPM at idle: Vacuum Leaks Idle Air Control Valve Issues Throttle Body Issues Engine Sensor Issues (MAF Sensor, Oxygen Sensor, Throttle Position Sensor, Engine Coolant Temperature Sensor) Dirty Engine Air Filter Bad Battery or Alternator We'll explain how each issue disrupts the air-fuel mixture, leading to erratic RPMs. You'll also learn simple methods to diagnose these problems yourself, like using a multimeter or checking for loose connections. Here are some additional tips: Before diving in, use an OBD-2 scanner to check for stored trouble codes in the ECU. Resetting the ECU by disconnecting the battery for a few minutes can sometimes resolve the issue. If you're not comfortable troubleshooting yourself, consult a certified mechanic. Don't forget to like this video and subscribe to our channel for more car repair tutorials! #RPM #IdleFluctuation #CarRepair #EngineTrouble #obd2scanners Timecode: 00:00:00 - Introduction 00:00:12 - Main culprits behind unstable revs 00:00:23 - Air fuel mixture imbalance 00:00:50 - Use of OBD2 scanner 00:01:11 - Potential causes 00:01:15 - Vacuum leaks 00:01:56 - Idle Air Control Valve Issues 00:02:32 - Throttle body issues 00:03:23 - Engine Sensor Issues 00:05:20 - Dirty engine air filter 00:05:37 - Bad battery or alternator 00:06:50 - Conclusion and call to action