Strange noise on acceleration

[FrankM]

Not sure what is going on…. When I step on it, I get a strange noise, sounds turbo related, definitely not exhaust! Took a Quick Look under the hood, nothing seems out of place. 66k on odometer.

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[CrackedHorn]

What kind of noise? What car? Mods?

 

[FrankM]

Sounds like turbo exhaust, totally stock

 

[FrankM]

Sounds like turbo exhaust, totally stock

22 ecoboost premium convertible

 

[FrankM]

Not knowing what to look at, I thought one of the large air hoses may have come off

 

[FrankM]

This is weird! Turns out that the exhaust flange at the block came loose! I’ve never seen that happen

 

[S550HPP]

Whistling noise?

 

[FrankM]

Louder than whistle, only on harder acceleration, the exhaust flange where it bolts to the turbo is loose, Didn’t expect that.

 

[S550HPP]

I will check mine. Have a whistling noise like I had on Volvo. No affect on power per dyno.

It is annoying. Started at 20K miles. I checked all the hoses & clamps. Was going to replace the PVC baffle, that's known to leak boost, with the Radium PVC baffle. Will check the exhaust flange first.

You tightened it and noise went away?

 

[FrankM]

I could spin the nut with bare hands! Tightened it up, will check it in the morning.

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