What Causes the Whistling Sound During Turbocharged Acceleration?

1 Answers
LaClaire
07/30/25 10:39am
Reasons for the whistling sound in a turbocharger: Turbo rotation: The turbocharger operates by being driven by exhaust gases. When the engine speed is low, it cannot drive the turbo, so there is no sound. When the speed exceeds 2000 rpm, the turbo starts working. During uphill driving with low gear and high speed, or when revving the engine in neutral, the exhaust gases increase, driving the turbo and causing the turbocharger to produce sound, which is a normal phenomenon. Engine sealing issues: This can be caused by poor sealing of the engine exhaust valves, a faulty exhaust gas recirculation valve (EGR) in diesel engines, poor sealing of the throttle in gasoline engines, or leaks or cracks in the exhaust pipe.
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