Whistle noise while accelerating - Page 3

Medeng · Feb 18th, 2020, 12:41

Thank you for information.

monkeh · Feb 18th, 2020, 17:39

The video- This may be a daft question but have you got an air filter installed? If it was a boost leak, it would be a whoosh noise, that just sounds like turbo whistle.

Medeng · Feb 18th, 2020, 19:32

Surely, air filter is in it's location. Changing oil and filters every 10k km. This whistling sound is so annoying.

monkeh · Feb 18th, 2020, 21:03

I would recommend a smoke test to see if there are any leaks.
Have you checked the egr components to make sure they are tight? The other thing it could be is a foreign body on the vanes of the turbo, but that would be more of a screech.

monkeh · Feb 18th, 2020, 21:09

I had a quick look at those pics, the first picture, I would recommend cleaning it all off and checking again.
One way I tested for boost leaks is to put on hearing protection, Lift car up on ramps and get someone to hold revs about 3500rpm. Then use a bottle with soapy water, squirt onto all the joins and connections. Itll be obvious with bubbles. THEN and only then, you can rule out any escaping charged air and move onto mechanical means of noise.

Medeng · Feb 19th, 2020, 04:36

Could I do smoke test with e-cigarette?

and where I need to blow that air with smoke that would spread all over the air system? In the air filter box? Never did it before.

For the EGR, I checked for soot, but there wasn’t any crap and looks like I hadn’t left any bolts untightened.

I think I’m going to try test with soapy water on weekend.

Medeng · Feb 25th, 2020, 19:18

Update.
Local mechanic said, that sound is from turbo. Sound's bad... :/

Feb 18th, 2020, 17:39	#22
monkeh Pain in the backside Last Online: Today 00:21 Join Date: Mar 2007 Location: Newport	The video- This may be a daft question but have you got an air filter installed? If it was a boost leak, it would be a whoosh noise, that just sounds like turbo whistle. __________________ 'Designed by a computer, built by a robot, and driven by a f***ing nutter' '09 XC70 SE - 2" lift, D5 225bhp, poverty spec.

Feb 18th, 2020, 21:03	#24
monkeh Pain in the backside Last Online: Today 00:21 Join Date: Mar 2007 Location: Newport	I would recommend a smoke test to see if there are any leaks. Have you checked the egr components to make sure they are tight? The other thing it could be is a foreign body on the vanes of the turbo, but that would be more of a screech. __________________ 'Designed by a computer, built by a robot, and driven by a f***ing nutter' '09 XC70 SE - 2" lift, D5 225bhp, poverty spec.

Feb 18th, 2020, 21:09	#25
monkeh Pain in the backside Last Online: Today 00:21 Join Date: Mar 2007 Location: Newport	I had a quick look at those pics, the first picture, I would recommend cleaning it all off and checking again. One way I tested for boost leaks is to put on hearing protection, Lift car up on ramps and get someone to hold revs about 3500rpm. Then use a bottle with soapy water, squirt onto all the joins and connections. Itll be obvious with bubbles. THEN and only then, you can rule out any escaping charged air and move onto mechanical means of noise. __________________ 'Designed by a computer, built by a robot, and driven by a f***ing nutter' '09 XC70 SE - 2" lift, D5 225bhp, poverty spec.

Feb 18th, 2020, 12:41	#21
Medeng New Member Last Online: Apr 24th, 2020 08:27 Join Date: Mar 2019 Location: Vilnius	Thank you for information.

Feb 18th, 2020, 19:32	#23
Medeng New Member Last Online: Apr 24th, 2020 08:27 Join Date: Mar 2019 Location: Vilnius	Surely, air filter is in it's location. Changing oil and filters every 10k km. This whistling sound is so annoying.

Feb 19th, 2020, 04:36	#26
Medeng New Member Last Online: Apr 24th, 2020 08:27 Join Date: Mar 2019 Location: Vilnius	Could I do smoke test with e-cigarette? and where I need to blow that air with smoke that would spread all over the air system? In the air filter box? Never did it before. For the EGR, I checked for soot, but there wasn’t any crap and looks like I hadn’t left any bolts untightened. I think I’m going to try test with soapy water on weekend.

Feb 25th, 2020, 19:18	#27
Medeng New Member Last Online: Apr 24th, 2020 08:27 Join Date: Mar 2019 Location: Vilnius	Update. Local mechanic said, that sound is from turbo. Sound's bad... :/

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