What are the signs of a faulty turbocharger in a Vauxhall Insignia?

My Vauxhall Insignia has been making strange noises and I suspect it might be due to a faulty turbocharger. What are the common symptoms of a bad turbocharger and how can I fix it?

One of the common signs of a faulty turbocharger is a noticeable decrease in engine power. You might also experience poor acceleration and slower response from your vehicle.

Another indication of a bad turbocharger is excessive exhaust smoke. If you notice black or blue smoke coming from your exhaust, it is likely due to a faulty turbo.

Strange noises from the engine, like whistling or grinding sounds, can also be a sign of a bad turbocharger. It is important to get it checked and repaired to avoid further damage.