Loud sound on acceleration

NoImDirtyDan · 02-23-2015, 12:43 PM

I think it's the turbo because it seems to only happen when building boost but I'm not sure

bfritzsch · 02-23-2015, 01:00 PM

Any power loss? Could be a slight boost leak somewhere causing it to squeal.

NoImDirtyDan · 02-23-2015, 01:03 PM

Quote:

Originally Posted by bfritzsch

Any power loss? Could be a slight boost leak somewhere causing it to squeal.

Doesn't feel like there is any power loss, where could it be leaking from

weehe126 · 02-23-2015, 01:45 PM

Quote:

Originally Posted by ZeroSix

Doesn't feel like there is any power loss, where could it be leaking from

Charge pipe?

TrAcK TRaP · 02-23-2015, 01:47 PM

that is not normal and I don't think boost leak can cause that noise :/ any code?

Jsoboti · 02-23-2015, 01:50 PM

post a video of a slow acceleration using minimal boost? any codes? happening in all gears? mods?

gotta give info to get it

NoImDirtyDan · 02-23-2015, 01:57 PM

Quote:

Originally Posted by Jsoboti

post a video of a slow acceleration using minimal boost? any codes? happening in all gears? mods?

gotta give info to get it

FBO JB4
Yes all gears
No codes!!
Tried turning jb4 to map 0 no difference

norsairius · 02-23-2015, 03:04 PM

Are you able to replicate this when the car is in neutral and sitting still or is it only under load and the car is in gear and moving forward? If the sound can be replicated while parked and in neutral, is any chance you could get a video of this sound while you stand in front of the car with the hood open? You might be able to isolate where the noise is coming from too.

NoImDirtyDan · 02-23-2015, 06:02 PM

Quote:

Originally Posted by norsairius

Are you able to replicate this when the car is in neutral and sitting still or is it only under load and the car is in gear and moving forward? If the sound can be replicated while parked and in neutral, is any chance you could get a video of this sound while you stand in front of the car with the hood open? You might be able to isolate where the noise is coming from too.

Video in park

wwc310 · 02-23-2015, 06:50 PM

Chargepipe. had this exact sound to a T. make sure you have it completely on the throttle body (top and bottom). Also make sure you have the O-ring installed correctly and that it did not shift during installation.

I played with mine a bit and the sound went away

asrautox · 02-23-2015, 06:52 PM

It's either a loose connection on your intake/inlet or your have a bad boost leak somewhere. Was it silent before and just started doing it, or is it a new sound with parts that have been installed?

NoImDirtyDan · 02-23-2015, 07:23 PM

Quote:

Originally Posted by asrautox

It's either a loose connection on your intake/inlet or your have a bad boost leak somewhere. Was it silent before and just started doing it, or is it a new sound with parts that have been installed?

I've been FBO for for at least 3 months and it just started yesterday

aren93 · 02-23-2015, 07:56 PM

Damn that sounds funny lol you gotta admit...but yea I hope you get it fixed soon

NoImDirtyDan · 02-23-2015, 07:58 PM

Quote:

Originally Posted by aren93

Damn that sounds funny lol you gotta admit...but yea I hope you get it fixed soon

It sounds like a train horn, it's really loud and embarrassing honestly but hopefully I can narrow it down. When I get a chance I'm going to remove the entire CP and put it back on, maybe the dealer f'ed it up after doing some work on my car last week

Dark_Knight_335 · 02-23-2015, 10:29 PM

Haha, sounds like one of those club sirens!!

Sorry.

Mine does an odd groan now and again, but doesn't seem to have any negative effects.

When it happens I'll just let off the pedal and then push it back down again and the turbo spools as normal.

NoImDirtyDan · 02-24-2015, 12:47 AM

I found a loose clamp on the passenger side bottom where the intercooler connects. I'm unable to reach it from the top of the engine bay so it looks like I'm going to have to have a shop put it up on a lift and take a look. I appreciate everyone's help!

Knobi · 02-24-2015, 09:22 PM

Good luck man, let us know if that took care of the noise

NoImDirtyDan · 02-24-2015, 09:29 PM

Quote:

Originally Posted by Knobi

Good luck man, let us know if that took care of the noise

The mechanic said that the hose to my intercooler was tucked behind the water pump and thermostat and wasn't connected at all. The dealership must have forgot to reattach it, being the morons that they are.

LMT0286 · 02-28-2015, 08:34 PM

Quote:

Originally Posted by ZeroSix

I think it's the turbo because it seems to only happen when building boost but I'm not sure

You have a boost leak. The same thing happened to me but the sound wast as bad as yours. I sent the video to burger tuning and he said it was a boost leak. Honestly it happened to me 2 days ago and I haven't had a chance to fix it yet

NoImDirtyDan · 02-28-2015, 08:37 PM

Quote:

Originally Posted by LMT0286

Quote:

Originally Posted by ZeroSix

I think it's the turbo because it seems to only happen when building boost but I'm not sure

You have a boost leak. The same thing happened to me but the sound wast as bad as yours. I sent the video to burger tuning and he said it was a boost leak. Honestly it happened to me 2 days ago and I haven't had a chance to fix it yet

My intercooler was completely detached on one side because the dealership never reconnected it after service. Thanks for the info, much appreciated!

02-23-2015, 12:43 PM	#1
NoImDirtyDan First Lieutenant 296 Rep 363 Posts Drives: 2018 BMW M3 Join Date: Dec 2011 Location: SoCal iTrader: (1) Garage List 2018 BMW M3 [0.00]	Loud sound on acceleration I think it's the turbo because it seems to only happen when building boost but I'm not sure
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02-23-2015, 01:00 PM	#2
bfritzsch Private First Class 22 Rep 170 Posts Drives: '11 e90 335i xDrive M-Sport Join Date: Nov 2012 Location: New Jersey iTrader: (0) Garage List 2011 335i xDrive (e90) [0.00]	Any power loss? Could be a slight boost leak somewhere causing it to squeal. __________________ 2011 335i X-Drive (e90) - M-sport 6MT - LeMans Blue ( BMS CP / VRSF DP / BMS Intake / ER Sport Oil Cooler / ER Intercooler / Cobb v3)
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02-23-2015, 01:47 PM	#5
TrAcK TRaP bOrN To DiE 416 Rep 1,736 Posts Drives: 2011 E92 M3 ZCP Join Date: Apr 2013 Location: South Jersey iTrader: (0)	that is not normal and I don't think boost leak can cause that noise :/ any code?
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02-23-2015, 01:50 PM	#6
Jsoboti Lieutenant 29 Rep 583 Posts Drives: 2011 335i E92 M-Sport 6MT Join Date: May 2014 Location: Mississippi iTrader: (0)	post a video of a slow acceleration using minimal boost? any codes? happening in all gears? mods? gotta give info to get it __________________ JB4 G5 ISO FF \| BMS Performance Intake \| BMS Wheel Spacers \| VRSF Catless DP \| Red CYBA Scoops \| Supreme Power Lowering Perches \| VRSF Charge Pipe \| VMR 810 19x8.5 ET35 19x9.5 ET33 \| Michelin PSS 235/265 \| BMS CDV \| BMS Clutch Stop \| 4'' Tips
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02-23-2015, 03:04 PM	#8
norsairius Foodie and Gearhead 102 Rep 733 Posts Drives: 2011 335i xDrive Sedan Join Date: Mar 2013 Location: MN iTrader: (0) Garage List 2011 BMW 335i xDriv ... [9.50]	Are you able to replicate this when the car is in neutral and sitting still or is it only under load and the car is in gear and moving forward? If the sound can be replicated while parked and in neutral, is any chance you could get a video of this sound while you stand in front of the car with the hood open? You might be able to isolate where the noise is coming from too. __________________ 2011 335i xDrive Sedan, Deep Sea Blue w/Oyster Interior
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02-23-2015, 06:50 PM	#10
wwc310 First Lieutenant 56 Rep 393 Posts Drives: e92 LCI 335i Join Date: Nov 2012 Location: Miami iTrader: (1)	Chargepipe. had this exact sound to a T. make sure you have it completely on the throttle body (top and bottom). Also make sure you have the O-ring installed correctly and that it did not shift during installation. I played with mine a bit and the sound went away __________________ 2011 335i e92 JB4 Stage 2, VRSF chargepipe, VRSF downpipe, Hankook Ventus V12 evo2s
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02-23-2015, 06:52 PM	#11
asrautox Private First Class 20 Rep 151 Posts Drives: 2011 335xi Join Date: Jun 2011 Location: LA iTrader: (0)	It's either a loose connection on your intake/inlet or your have a bad boost leak somewhere. Was it silent before and just started doing it, or is it a new sound with parts that have been installed? __________________ 2011 335xi M-Sport \| MHD E40 \| VSRF DP/CP \| Wagner IC \| GFB DV+ \| xHP Stage 3 \| Dinan/Koni/UUC
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02-23-2015, 07:56 PM	#13
aren93 First Lieutenant 40 Rep 394 Posts Drives: 2012 335i M Sport Join Date: Sep 2014 Location: Los Angeles iTrader: (2)	Damn that sounds funny lol you gotta admit...but yea I hope you get it fixed soon __________________ MHD- VRSF Catless Downpipe - VRSF Charge Pipe - VRSF 7" FMIC - aFe Intake - Alpina Flash - Pure Stage 2 - Pure Inlet - Fuel it! PI - Fuel it! Stage 2 LPFP - N20 3.5bar Tmap sensor - N20 spark plugs -
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02-23-2015, 10:29 PM	#15
Dark_Knight_335 Came to the N55 Darkside 1139 Rep 12,740 Posts Drives: 2011 335 E93 M-Sport Join Date: May 2010 Location: NY/NJ iTrader: (28)	Haha, sounds like one of those club sirens!! Sorry. Mine does an odd groan now and again, but doesn't seem to have any negative effects. When it happens I'll just let off the pedal and then push it back down again and the turbo spools as normal.
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02-24-2015, 12:47 AM	#16
NoImDirtyDan First Lieutenant 296 Rep 363 Posts Drives: 2018 BMW M3 Join Date: Dec 2011 Location: SoCal iTrader: (1) Garage List 2018 BMW M3 [0.00]	I found a loose clamp on the passenger side bottom where the intercooler connects. I'm unable to reach it from the top of the engine bay so it looks like I'm going to have to have a shop put it up on a lift and take a look. I appreciate everyone's help!
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02-24-2015, 09:22 PM	#17
Knobi Captain 92 Rep 716 Posts Drives: 2015 YMB M3 Join Date: Jan 2009 Location: Weston, FL iTrader: (4) Garage List 2011 BMW E90 335i [9.50]	Good luck man, let us know if that took care of the noise __________________ 2015 BMW M3 \| DCT \| Yas Marina Blue \| Silverstone \| Executive \| Lightning \| Driver Assistant \| Carbon Ceramic Brakes Instagram: @benrivasplata
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