What Does It Mean When Your Car Randomly Revs? If you hear revving while driving your car, then the issue is likely one of the following: Transmission Issue. Dirty Fuel Injectors Or Air Filters. Vacuum Leak. Why would a car idle rev up and down? If the engine can’t keep idling, it will continue trying
What Causes Engine To Idle Up And Down? If the engine can’t keep idling, it will keep trying to get the engine revved up to compensate. The cause of the erratic engine you’re experiencing could be a vacuum leak, sensor failure, or an EGR system malfunction. What causes RPMs to fluctuate at idle? Why does
Can A Map Sensor Cause High Idle? Can a map sensor cause high idle? your car surges and dies out: a faulty map sensor can cause engine rpm to fluctuate or surge, primarily at idle or low speeds. if you turn on the air conditioning or use the power steering when the happens, the engine