F30POST
F30POST
2012-2015 BMW 3-Series and 4-Series Forum
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N20, N26, B46, B48 Turbo Engine / Drivetrain / Exhaust Modifications > Screaming sound coming from my car!
GetBMWParts
Post Reply
 
Thread Tools Search this Thread
      07-18-2019, 09:53 PM   #1
ottawa_f30
New Member
6
Rep
17
Posts

Drives: 2013 328x
Join Date: Dec 2017
Location: Ottawa,Ontario

iTrader: (0)

Screaming sound coming from my car!

Hey guys, I currently own a 2013 328ix. It has 3 main modifications to the car
1.Catless dp
2.K and n filter
3.Bootmod stage 2

I put the dp on a few months ago with no problems at all. About 3 months ago this whining sound (can be heard over 3,000 rpm) has been driving me crazy. I took it to my mechanic where they said nothing was wrong. I took it to Bmw 2 weeks ago where they said the sound is coming from the dp and that nothing was wrong. I am losing no boost, no engine lights, no loss of power.

I don't think is is a normal occurrence on cars with a catless dp. The screening is worse when I code boot mod onto the car. When I drive at slower speed I can here the turbos spooling a lot louder, but when I gas it it just screams (like a little girl)

From what I have been hearing it should be the turbos, but I have a feeling it may be something else.

I will add vids below

If anyone has any idea what it could be please let me know! I am going crazy with this sound
Attached Images
  
Appreciate 0
      07-18-2019, 10:02 PM   #2
ottawa_f30
New Member
6
Rep
17
Posts

Drives: 2013 328x
Join Date: Dec 2017
Location: Ottawa,Ontario

iTrader: (0)



Appreciate 0
      07-18-2019, 10:29 PM   #3
sspade
Major General
sspade's Avatar
United_States
2460
Rep
5,451
Posts

Drives: F30
Join Date: Oct 2017
Location: Stevenson, WA

iTrader: (3)

Garage List
2016 BMW 320i  [7.87]
2014 BMW 328i  [6.83]
You really shouldn't be running stage 2 without an upgraded FMIC and CP.

I wonder if you do indeed have a boost leak. They can be whiny / whistly.

Also... the drop in filter is definitely increasing turbo sound. Could be just that, by itself.

Have you scanned for codes?
Appreciate 0
      07-18-2019, 10:56 PM   #4
ottawa_f30
New Member
6
Rep
17
Posts

Drives: 2013 328x
Join Date: Dec 2017
Location: Ottawa,Ontario

iTrader: (0)

Quote:
Originally Posted by sspade View Post
You really shouldn't be running stage 2 without an upgraded FMIC and CP.

I wonder if you do indeed have a boost leak. They can be whiny / whistly.

Also... the drop in filter is definitely increasing turbo sound. Could be just that, by itself.

Have you scanned for codes?
I haven't run stage 2 for more than a few days at a time(during the winter). I had the problem before the tune so I want to make sure the car is stable before buying the intercooler and running stage 2 daily.

I changed the drop-in filter to stock to see if that was what's causing the problem. Nothing changed sound wise

Regarding a boost leak, there is no loss of power nor a slow spool from what I can feel. I have also used the boot mod tool for testing (no loss of boost from what I can see)

The check engine light is on due to the oxygen sensors. No other codes have appeared since
Appreciate 1
sspade2460.00
      07-18-2019, 11:08 PM   #5
sspade
Major General
sspade's Avatar
United_States
2460
Rep
5,451
Posts

Drives: F30
Join Date: Oct 2017
Location: Stevenson, WA

iTrader: (3)

Garage List
2016 BMW 320i  [7.87]
2014 BMW 328i  [6.83]
Hmmm. I hear what you're saying. There's only so many possibilities and it definitely sounds like its coming from engine air intake / turbo induction systems...

I wonder if you're stock diverter valve has taken a dump. They are largely made of plastic and known to fail under stock boost over time, let alone increased boost pressures.

The GFB DV+ would be a nice upgrade and reasonably priced at under $150 shipped. Might be worth a try.

Interested to hear if anyone else has any ideas.
Appreciate 1
      07-19-2019, 01:20 AM   #6
Craeftig
Private
United_States
20
Rep
77
Posts

Drives: BMW 2014 F30
Join Date: Mar 2019
Location: Oxnard

iTrader: (0)

Quote:
Originally Posted by ottawa_f30 View Post
Hey guys, I currently own a 2013 328ix. It has 3 main modifications to the car
1.Catless dp
2.K and n filter
3.Bootmod stage 2

I put the dp on a few months ago with no problems at all. About 3 months ago this whining sound (can be heard over 3,000 rpm) has been driving me crazy. I took it to my mechanic where they said nothing was wrong. I took it to Bmw 2 weeks ago where they said the sound is coming from the dp and that nothing was wrong. I am losing no boost, no engine lights, no loss of power.

I don't think is is a normal occurrence on cars with a catless dp. The screening is worse when I code boot mod onto the car. When I drive at slower speed I can here the turbos spooling a lot louder, but when I gas it it just screams (like a little girl)

From what I have been hearing it should be the turbos, but I have a feeling it may be something else.

I will add vids below

If anyone has any idea what it could be please let me know! I am going crazy with this sound
Sounds like ur stock DV took a dump, Time to replace that shit. doesn't sound like a boost leak to me.
Appreciate 2
      07-19-2019, 06:30 AM   #7
rjd_F30
Brigadier General
rjd_F30's Avatar
United_States
1997
Rep
3,674
Posts

Drives: 2013 335i 6MT
Join Date: Jun 2017
Location: New Jersey

iTrader: (0)

Interesting sound... doesn't sound like a normal boost leak IMO. Could be the diverter valve as others have said.
__________________
Instagram: rjd_f30 | Current: EBII 2013 335i 6MT RWD & Sprint Blue 2008 Audi RS4 | Retired: 2013 328i, 2000 XTerra, 2022 Civic Si |
Appreciate 0
      07-19-2019, 08:11 AM   #8
CandyRedRC46
Lieutenant
CandyRedRC46's Avatar
242
Rep
420
Posts

Drives: 2013 328i
Join Date: Feb 2018
Location: Florida

iTrader: (0)

Like others have said, sounds like diverter valve and you should be on stage 1 not 2. Also FYi, you only have one turbo.
Appreciate 2
      07-19-2019, 11:13 AM   #9
ottawa_f30
New Member
6
Rep
17
Posts

Drives: 2013 328x
Join Date: Dec 2017
Location: Ottawa,Ontario

iTrader: (0)

Quote:
Originally Posted by CandyRedRC46 View Post
Like others have said, sounds like diverter valve and you should be on stage 1 not 2. Also FYi, you only have one turbo.
Alright, I will check that out and see if that's the problem. I am not using stage 2 daily. The fmic will be ordered before stage 2 will be used. Also, The engine is an n20 (twin-scroll)
Appreciate 0
      07-19-2019, 11:19 AM   #10
ottawa_f30
New Member
6
Rep
17
Posts

Drives: 2013 328x
Join Date: Dec 2017
Location: Ottawa,Ontario

iTrader: (0)

Quote:
Originally Posted by rjdnyy224 View Post
Interesting sound... doesn't sound like a normal boost leak IMO. Could be the diverter valve as others have said.
Thank you! I will order a new one asap. Let's hope that is what the problem is. I am surprised after paying BMW $500 to look at the car they couldn't even diagnose it.
Appreciate 0
      07-19-2019, 11:33 AM   #11
ottawa_f30
New Member
6
Rep
17
Posts

Drives: 2013 328x
Join Date: Dec 2017
Location: Ottawa,Ontario

iTrader: (0)

Quote:
Originally Posted by sspade View Post
Hmmm. I hear what you're saying. There's only so many possibilities and it definitely sounds like its coming from engine air intake / turbo induction systems...

I wonder if you're stock diverter valve has taken a dump. They are largely made of plastic and known to fail under stock boost over time, let alone increased boost pressures.

The GFB DV+ would be a nice upgrade and reasonably priced at under $150 shipped. Might be worth a try.

Interested to hear if anyone else has any ideas.
Done just got the exact one you recommended. I will keep the thread updated
Appreciate 1
sspade2460.00
      07-19-2019, 11:37 AM   #12
sspade
Major General
sspade's Avatar
United_States
2460
Rep
5,451
Posts

Drives: F30
Join Date: Oct 2017
Location: Stevenson, WA

iTrader: (3)

Garage List
2016 BMW 320i  [7.87]
2014 BMW 328i  [6.83]
Quote:
Originally Posted by ottawa_f30 View Post
Quote:
Originally Posted by sspade View Post
Hmmm. I hear what you're saying. There's only so many possibilities and it definitely sounds like its coming from engine air intake / turbo induction systems...

I wonder if you're stock diverter valve has taken a dump. They are largely made of plastic and known to fail under stock boost over time, let alone increased boost pressures.

The GFB DV+ would be a nice upgrade and reasonably priced at under $150 shipped. Might be worth a try.

Interested to hear if anyone else has any ideas.
Done just got the exact one you recommended. I will keep the thread updated
Just a word to the wise... there are a lot of knockoff DV+ floating around.

Just trying to save you the trouble of dealing with it.

I hope you purchased from a reputable dealer. This is one part that you dont want to buy at discount. That likely means its fake. For example... you can find them for around $70 on eBay.

YouTube it and youll see what I mean. Also this forum outlines the issues people have had.

Can be harmful to turbo and will cause you to take the car apart twice.
Appreciate 1
rjd_F301997.00
      07-19-2019, 11:38 AM   #13
sspade
Major General
sspade's Avatar
United_States
2460
Rep
5,451
Posts

Drives: F30
Join Date: Oct 2017
Location: Stevenson, WA

iTrader: (3)

Garage List
2016 BMW 320i  [7.87]
2014 BMW 328i  [6.83]
Appreciate 0
      07-19-2019, 12:58 PM   #14
Craeftig
Private
United_States
20
Rep
77
Posts

Drives: BMW 2014 F30
Join Date: Mar 2019
Location: Oxnard

iTrader: (0)

Quote:
Originally Posted by sspade View Post
Quote:
Originally Posted by ottawa_f30 View Post
Quote:
Originally Posted by sspade View Post
Hmmm. I hear what you're saying. There's only so many possibilities and it definitely sounds like its coming from engine air intake / turbo induction systems...

I wonder if you're stock diverter valve has taken a dump. They are largely made of plastic and known to fail under stock boost over time, let alone increased boost pressures.

The GFB DV+ would be a nice upgrade and reasonably priced at under $150 shipped. Might be worth a try.

Interested to hear if anyone else has any ideas.
Done just got the exact one you recommended. I will keep the thread updated
Just a word to the wise... there are a lot of knockoff DV+ floating around.

Just trying to save you the trouble of dealing with it.

I hope you purchased from a reputable dealer. This is one part that you dont want to buy at discount. That likely means its fake. For example... you can find them for around $70 on eBay.

YouTube it and youll see what I mean. Also this forum outlines the issues people have had.

Can be harmful to turbo and will cause you to take the car apart twice.
Bought mine straight from KieMotorsports. I'm pretty sure his company is very well known here, so I suggest OP buys from him.
Appreciate 1
sspade2460.00
      07-19-2019, 01:04 PM   #15
sspade
Major General
sspade's Avatar
United_States
2460
Rep
5,451
Posts

Drives: F30
Join Date: Oct 2017
Location: Stevenson, WA

iTrader: (3)

Garage List
2016 BMW 320i  [7.87]
2014 BMW 328i  [6.83]
Quote:
Originally Posted by Craeftig View Post
Quote:
Originally Posted by sspade View Post
Quote:
Originally Posted by ottawa_f30 View Post
Quote:
Originally Posted by sspade View Post
Hmmm. I hear what you're saying. There's only so many possibilities and it definitely sounds like its coming from engine air intake / turbo induction systems...

I wonder if you're stock diverter valve has taken a dump. They are largely made of plastic and known to fail under stock boost over time, let alone increased boost pressures.

The GFB DV+ would be a nice upgrade and reasonably priced at under $150 shipped. Might be worth a try.

Interested to hear if anyone else has any ideas.
Done just got the exact one you recommended. I will keep the thread updated
Just a word to the wise... there are a lot of knockoff DV+ floating around.

Just trying to save you the trouble of dealing with it.

I hope you purchased from a reputable dealer. This is one part that you dont want to buy at discount. That likely means its fake. For example... you can find them for around $70 on eBay.

YouTube it and youll see what I mean. Also this forum outlines the issues people have had.

Can be harmful to turbo and will cause you to take the car apart twice.
Bought mine straight from KieMotorsports. I'm pretty sure his company is very well known here, so I suggest OP buys from him.
You are correct. I got mine from Extreme Power House who is also a forum sponsor.
Appreciate 0
      07-19-2019, 03:31 PM   #16
Craeftig
Private
United_States
20
Rep
77
Posts

Drives: BMW 2014 F30
Join Date: Mar 2019
Location: Oxnard

iTrader: (0)

Quote:
Originally Posted by sspade View Post
Quote:
Originally Posted by Craeftig View Post
Quote:
Originally Posted by sspade View Post
Quote:
Originally Posted by ottawa_f30 View Post
Quote:
Originally Posted by sspade View Post
Hmmm. I hear what you're saying. There's only so many possibilities and it definitely sounds like its coming from engine air intake / turbo induction systems...

I wonder if you're stock diverter valve has taken a dump. They are largely made of plastic and known to fail under stock boost over time, let alone increased boost pressures.

The GFB DV+ would be a nice upgrade and reasonably priced at under $150 shipped. Might be worth a try.

Interested to hear if anyone else has any ideas.
Done just got the exact one you recommended. I will keep the thread updated
Just a word to the wise... there are a lot of knockoff DV+ floating around.

Just trying to save you the trouble of dealing with it.

I hope you purchased from a reputable dealer. This is one part that you dont want to buy at discount. That likely means its fake. For example... you can find them for around $70 on eBay.

YouTube it and youll see what I mean. Also this forum outlines the issues people have had.

Can be harmful to turbo and will cause you to take the car apart twice.
Bought mine straight from KieMotorsports. I'm pretty sure his company is very well known here, so I suggest OP buys from him.
You are correct. I got mine from Extreme Power House who is also a forum sponsor.
Yeah I bought my BM3 license & ER DP from extreme power. So I agree also.
Appreciate 0
      07-22-2019, 08:44 AM   #17
CandyRedRC46
Lieutenant
CandyRedRC46's Avatar
242
Rep
420
Posts

Drives: 2013 328i
Join Date: Feb 2018
Location: Florida

iTrader: (0)

Quote:
Originally Posted by ottawa_f30 View Post
Alright, I will check that out and see if that's the problem. I am not using stage 2 daily. The fmic will be ordered before stage 2 will be used. Also, The engine is an n20 (twin-scroll)
Yes, correct. It has a single turbo, that has twin scrolls.
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 07:37 PM.




f30post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST