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2013 Focus St ST3
1 Posts
Discussion Starter · #1 ·
Hello everyone,

I'm new to this forum and new to the ST platform. I was hoping with such a largo community here someone might be able to help me out with a little issue I’m having with my car.

The issue I’m having is when driving the car and pushing the throttle down hard enough to start spoiling the turbo and boosting I notice this strange “squeal/ hissing/ whining” noise. It seems like the power is a little off than normal. Not sure by how much but the vehicle just feels different. I was able to find a video on YouTube
Where this guy has a very similar sounding issue however his vehicle is a Subaru.

What do you guys think could be wrong? I’m not very familiar with all the parts of an engine or turbo so please try and explain well.

Thank you!
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