Whoosh sound over 600rpm

churchillps · 06-06-2014, 04:05 PM

Regardless of whether I'm in gear, my e92 335i started making a woosh sound at 6000rpm and higher, sort of like the sound compressed air makes but 100x as loud. Haven't seen any discharge. Any ideas?

335NJ · 06-06-2014, 04:27 PM

Vacuum leak? Any codes?

Jhe · 06-06-2014, 05:19 PM

Like Shafer said. Is it high a pitched whistle?

churchillps · 06-06-2014, 05:49 PM

I don't think I'd describe it as high pitched, more of a moderate whirl. I assumed leak or belt

Jhe · 06-07-2014, 02:55 AM

A boost leak is generally a high pitched whistle type sound.... I'm not sure if vacuum leaks have the same symptoms or not, but possibly vacuum issue. If you have a stock charge pipe, I would recommend a close inspection of that. Mine caused me about 3 months of frustration, until I removed it and looked at it closely in hand..... 3 cracks and a bad diverter.

churchillps · 06-07-2014, 06:46 PM

Assuming that its a generic leak (vacuum, boost, etc) is it going to be OK to drive without risking a breakdown or going into limp mode?

06-06-2014, 04:05 PM	#1
churchillps Second Lieutenant 50 Rep 254 Posts Drives: F80 M3 Join Date: Jul 2011 Location: Texas iTrader: (0)	Whoosh sound over 600rpm Regardless of whether I'm in gear, my e92 335i started making a woosh sound at 6000rpm and higher, sort of like the sound compressed air makes but 100x as loud. Haven't seen any discharge. Any ideas?
	Appreciate 0 Tweet Quote

06-06-2014, 04:27 PM	#2
335NJ Colonel 533 Rep 2,872 Posts Drives: 2008 335i 6MT E90 Join Date: Feb 2014 Location: NJ/Philadelphia Suburbs iTrader: (1)	Vacuum leak? Any codes? __________________ *BSM E90 6MT*-JB4 G5 ISO-BMS DCI-Golf-Tee Mod-Hankook S1N2 Non-RFT-ER Chargepipe/TiAL BOV-E40 blend-VRSF V2's-M3 CDV-MHD/JB4 FLASH-VRSF 5" STEPPED FMIC
	Appreciate 0 Quote

06-06-2014, 05:19 PM	#3
Jhe JHE 10 Rep 170 Posts Drives: 2010 335i Coupe Join Date: Mar 2012 Location: LA iTrader: (1)	Like Shafer said. Is it high a pitched whistle?
	Appreciate 0 Quote

06-06-2014, 05:49 PM	#4
churchillps Second Lieutenant 50 Rep 254 Posts Drives: F80 M3 Join Date: Jul 2011 Location: Texas iTrader: (0)	I don't think I'd describe it as high pitched, more of a moderate whirl. I assumed leak or belt
	Appreciate 0 Quote

06-07-2014, 02:55 AM	#5
Jhe JHE 10 Rep 170 Posts Drives: 2010 335i Coupe Join Date: Mar 2012 Location: LA iTrader: (1)	A boost leak is generally a high pitched whistle type sound.... I'm not sure if vacuum leaks have the same symptoms or not, but possibly vacuum issue. If you have a stock charge pipe, I would recommend a close inspection of that. Mine caused me about 3 months of frustration, until I removed it and looked at it closely in hand..... 3 cracks and a bad diverter. Last edited by Jhe; 06-07-2014 at 02:55 AM.. Reason: spelling
	Appreciate 0 Quote

06-07-2014, 06:46 PM	#6
churchillps Second Lieutenant 50 Rep 254 Posts Drives: F80 M3 Join Date: Jul 2011 Location: Texas iTrader: (0)	Assuming that its a generic leak (vacuum, boost, etc) is it going to be OK to drive without risking a breakdown or going into limp mode?
	Appreciate 0 Quote