![My car makes a whistle noise when accelerating. It sounds louder when I turn on the AC. Vacuum leak? : r/MechanicAdvice My car makes a whistle noise when accelerating. It sounds louder when I turn on the AC. Vacuum leak? : r/MechanicAdvice](https://external-preview.redd.it/qNNaUewzAwOd2HGaNRaoNJPbmHZ7yR4NYAs59bM_jbY.png?width=640&crop=smart&format=pjpg&auto=webp&s=a48d5fc7c0cdfbb72cee6dd9ef84fbf67a544605)
My car makes a whistle noise when accelerating. It sounds louder when I turn on the AC. Vacuum leak? : r/MechanicAdvice
![Why Is My Mercedes Making A Whistling Noise When I Accelerate by Masters European & Japanese Auto Repair - Issuu Why Is My Mercedes Making A Whistling Noise When I Accelerate by Masters European & Japanese Auto Repair - Issuu](https://image.isu.pub/221231043852-ef40e940640fede668ae7432bdaa332f/jpg/page_1.jpg)
Why Is My Mercedes Making A Whistling Noise When I Accelerate by Masters European & Japanese Auto Repair - Issuu
My car makes a faint whistling sound if I let off the accelerator at around 30kph. The sound slowly decreases in pitch as the car coasts. What could cause this? - Quora
![High pitched whistle when you accelerate? I found where mine was coming from. - Page 2 - Xoutpost.com High pitched whistle when you accelerate? I found where mine was coming from. - Page 2 - Xoutpost.com](https://xoutpost.com/gallery/files/1/0/1/2/IMG_1964.jpg)