Why does my car make a turbo sound?

What causes turbo whistle? Turbo whistle is the sound of the compressor inside the turbocharger speeding up (also known as ‘spooling up’, which is why it kicks in at the boost threshold (when the turbo starts to kick in) as you accelerate up the rev range.

What does a turbo sound like when it’s going out?

Loud noises: If your vehicle has a bad turbo, you may hear loud noises that sound like whining or screeching. So if your vehicle is running and you hear a loud whining sound that increases in volume as the problem goes unfixed, this is most likely to do a turbo problem.

Does a turbocharger affect the sound of car?

One of the unexpected advantages of a turbocharger is that it actually makes the engine quieter because it muffles the sound of air intake. However, if you start to hear a loud, whining noise – a bit like a dentist’s drill or police siren – it’s a potential symptom of turbo failure.

How do you know if turbo has gone?

The symptoms of a damaged or failing turbo are:

Loss of power.
Slower, louder acceleration.
Difficulty maintaining high speeds.
Blue/grey smoke coming from the exhaust.
Engine dashboard light is showing.

Does a turbo muffle sound?

There is little question that turbocharging an engine carries with it performance and fuel-economy benefits. Most also agree, however, that turbos have a knack for muffling engine noise, lowering the tone of the exhaust note, and layering on whooshing sounds.

Does turbo make a car louder?

As a general rule, turbo charged vehicles are somewhat less loud than a naturally aspirated engine. This is because the turbo acts as a muffler since it is in the exhaust system. This combined with a muffler will significantly change engine tone and noise, but not necessarily reduce exhaust noise.