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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Will a bov fix waste gate rattle?



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      05-20-2012, 09:50 PM   #1
steve7909
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Will a bov fix waste gate rattle?

I have been hearing a rattel a lot more after my dp install an running map 2 on my jb4. Im almost sure its the waste gate, only happens when i let off the gas at high boost an more so when its cold
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      05-20-2012, 11:21 PM   #2
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No, BOV's and Wastegates have 2 separate purposes... One is bleeding off exhaust the other is bleeding off intake. Completely separate tracks unfortunately.
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      05-21-2012, 07:57 AM   #3
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Any other way to fix besides taking it to BMW...
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      05-21-2012, 09:21 AM   #4
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Quote:
Originally Posted by steve7909 View Post
Any other way to fix besides taking it to BMW...
Not that I know of personally ( sorry cant be of more help ), but some of the Turbo Guru's may chime in.
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      05-21-2012, 09:40 AM   #5
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Quote:
Originally Posted by steve7909 View Post
I have been hearing a rattel a lot more after my dp install an running map 2 on my jb4. Im almost sure its the waste gate, only happens when i let off the gas at high boost an more so when its cold
If only it were that simple. The DPs will make the sound much more apparent, especially at cold start.
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      05-21-2012, 11:55 PM   #6
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Quote:
Originally Posted by steve7909
I have been hearing a rattel a lot more after my dp install an running map 2 on my jb4. Im almost sure its the waste gate, only happens when i let off the gas at high boost an more so when its cold
Yes...sound of your BOV will mask the rattle for a second...
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      05-22-2012, 12:24 AM   #7
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Originally Posted by eric@helix View Post
If only it were that simple. The DPs will make the sound much more apparent, especially at cold start.
+1 I never noticed the rattle until I installed the DPs. At first I thought I had left something loose.
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      05-22-2012, 03:15 AM   #8
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Quote:
Originally Posted by landman2k1 View Post
+1 I never noticed the rattle until I installed the DPs. At first I thought I had left something loose.
+1000

i thought i let somthing loose too then thought i was touching the subframe, theposted this, http://www.e90post.com/forums/showthread.php?t=686497
then figured it was waste gate rattle hard core!
and didnt notice until VRSF Dps went in!
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