2010 Squeal/Growl on hard acceleration

[Shadow351]

I was merging onto the interstate today and under hard acceleration I got a noise I can only describe as a squeal/growl and the car fell on its face. At first I thought a charge pipe came loose (boost leak) or I lost another turbo (front turbo has about 15k miles on it, I think the rear is original) but I tried later and it was defiantly still building boost, and I didn't see any smoke like when I lost my front turbo. next suspect is the transmission or PTU, as far as I know, both are original. Anybody experience such a noise caused by either of these? I'm open to other ideas. It only happened once today but I'm 400 miles from home and will be until Friday, so I took it easy the rest of the day, and will do so all week.

apologies on the sound, It's the best I have bc I was listening to an audiobook when it happened.

Car is 2010 non-pp with 235k miles on the clock

 

[yaycandy]

My rusted out chevy does the same at highway speeds with nearly the same miles. I giter up ta 80 and its a hole pile of new noizes.

 

[yaycandy]

On a more serious side, do you still have the factory noise maker installed? Mine used to act like that because the noise maker was leaking whenever it wanted to yet holding boost. And would shut the throttle down i guess because the computer is seeing to many inconsistent readings.

 

[Shadow351]

Why, yes, the car is mostly stock (drivetrain is bone stock) so the noise maker is still there. I might see if I can remove it, and cobble something up to fix the massive boot leak caused when I remove it, and see if the noise is still present, Although I'm still gonna take it easy, at least until I'm within 100 miles of home, when I can call AAA.

It just seems too easy that the source of my noise would be a device literally called...a noise maker. I'm never that lucky.

 

[yaycandy]

Why, yes, the car is mostly stock (drivetrain is bone stock) so the noise maker is still there. I might see if I can remove it, and cobble something up to fix the massive boot leak caused when I remove it, and see if the noise is still present, Although I'm still gonna take it easy, at least until I'm within 100 miles of home, when I can call AAA.

It just seems too easy that the source of my noise would be a device literally called...a noise maker. I'm never that lucky.

Ive tried ways to seal up the noisemaker pipe and they all failed under high boost when tuned. It best to just by the noisemaker delete pipe from ecopowerparts, you can take it easy. It will be fine, i drove without a bov for a couple week. Was just a huge hole. Never went to far into boost, maybe 3psi but these cars are still quick with no boost somehow

 

[Shadow351]

Ok, So I removed the noise maker and plugged the hole with an expanding plug as others have done, but the noise is still present. What is next on the list to check? I grabbed another video with the sound so there isn't an audio book playing:

 

[Shadow351]

So I was doing my 240k mile oil change and I noticed that one of my flex pipes is rusted through, Is there any possible chance that a hole in the flexpipe could be turning into a kazoo under hard acceleration?

Does anyone make the flex pipes in the aftermarket for a reasonable price? Ford/Tasca want $450-500 for the set. Looking for a bolt in as my welder will **** right through exhaust tubing even on the lowest setting.

 

[Shadow351]

I finally got around to fixing that exhaust leak, and that sound seems to have been solved. The leak was at the donut gasket between the front bank flex pipe and the underbody catalytic converter. The lower bolt broke and the gasket turned into a reed/un-harmonica.