ADVICE NEEDED: High pitch whistle from engine bay

Kgray_e92 · 06-07-2017, 08:15 PM

My e92 328 has been making a high pitch whistle from the engine bay accompanied by a rough idle. It does it randomly and also goes away randomly. The only codes I have are vanos related so I thought maybe that was the problem. I took my car to BMW and they couldn't reproduce the whistle but told me they believed it was a vacuum caused by a faulty valve cover and not vanos related at all. The vanos codes were linked to "bad solenoids" they said. The car has been running fine the past 2 days with no whistle or rough idle and today I cleaned my solenoids to see if that would get rid of the codes and after putting them back in, the car is idling like crap and whistling its a** off every time I start it. Why would this happen if it is not vanos related? Any advice?

W37V · 06-07-2017, 08:31 PM

Vacuum leak.

Check hoses or even valve cover (it tends to crack)

markv123 · 06-28-2017, 07:54 AM

I had a similar issue.
Here's my thread on my solution for it.
http://www.e90post.com/forums/showthread.php?t=1311941
Hope you sort it out.

Kgray_e92 · 06-28-2017, 08:25 AM

BMW has confirmed that the cause of my problems is a bad ccv which means my whole valve cover has to be replaced. BMW wanted $1300 to do it so instead, its at a local shop being looked at

W37V · 06-28-2017, 09:45 AM

Quote:

Originally Posted by Kgray_e92

BMW has confirmed that the cause of my problems is a bad ccv which means my whole valve cover has to be replaced. BMW wanted $1300 to do it so instead, its at a local shop being looked at

3-4 hours and $3-400 if you do it yourself.

Kgray_e92 · 06-28-2017, 10:10 AM

Quote:

Originally Posted by W37V

Quote:

Originally Posted by Kgray_e92

BMW has confirmed that the cause of my problems is a bad ccv which means my whole valve cover has to be replaced. BMW wanted $1300 to do it so instead, its at a local shop being looked at

3-4 hours and $3-400 if you do it yourself.

If quoted more than $500-$600 I'll do it myself

Phil325i · 06-28-2017, 11:34 AM

Or why not just replace the membrane?

https://vanos-bmw.com/product/111275...53-11127548196

https://vanos-bmw.com/product/111275...53-11127548196

http://bersa-tools.ru/goods/Remkompl...1127548196-BMW

06-07-2017, 08:15 PM	#1
Kgray_e92 Private 6 Rep 70 Posts Drives: AWD Space Grey E92 Join Date: May 2017 Location: Upstate NY iTrader: (1)	ADVICE NEEDED: High pitch whistle from engine bay My e92 328 has been making a high pitch whistle from the engine bay accompanied by a rough idle. It does it randomly and also goes away randomly. The only codes I have are vanos related so I thought maybe that was the problem. I took my car to BMW and they couldn't reproduce the whistle but told me they believed it was a vacuum caused by a faulty valve cover and not vanos related at all. The vanos codes were linked to "bad solenoids" they said. The car has been running fine the past 2 days with no whistle or rough idle and today I cleaned my solenoids to see if that would get rid of the codes and after putting them back in, the car is idling like crap and whistling its a** off every time I start it. Why would this happen if it is not vanos related? Any advice?
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06-07-2017, 08:31 PM	#2
W37V [Oo=\|\|=oO] 1103 Rep 2,470 Posts Drives: e92n52 & f15n57 Join Date: Aug 2014 Location: DMV iTrader: (0)	Vacuum leak. Check hoses or even valve cover (it tends to crack)
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06-28-2017, 07:54 AM	#3
markv123 Private First Class 45 Rep 139 Posts Drives: . Join Date: Jan 2016 Location: Sydney iTrader: (0)	I had a similar issue. Here's my thread on my solution for it. http://www.e90post.com/forums/showthread.php?t=1311941 Hope you sort it out.
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06-28-2017, 08:25 AM	#4
Kgray_e92 Private 6 Rep 70 Posts Drives: AWD Space Grey E92 Join Date: May 2017 Location: Upstate NY iTrader: (1)	BMW has confirmed that the cause of my problems is a bad ccv which means my whole valve cover has to be replaced. BMW wanted $1300 to do it so instead, its at a local shop being looked at
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06-28-2017, 11:34 AM	#7
Phil325i Brigadier General 616 Rep 3,194 Posts Drives: E92 325i MSport Coupe Join Date: Apr 2012 Location: UK South East iTrader: (1) Garage List 2009 BMW 325i Coupe [6.00]	Or why not just replace the membrane? https://vanos-bmw.com/product/111275...53-11127548196 https://vanos-bmw.com/product/111275...53-11127548196 http://bersa-tools.ru/goods/Remkompl...1127548196-BMW __________________ E92 pre-LCI 325i - Ohlins R&T; H&R spacers; M3 strut brace; Swift thrust sheets; 3 x chassis braces; diff brace; N53 V-brace; 034 subframe inserts; BMS clutch stop; BMS CDV; RE g/box mounts; Delrin shift bushes; Saikoumichi OCC; Cyba scoops; BMW Perf Exhaust; HEL s/steel brake hoses; M3 rear spoiler; Recaro Sportster CSs; M3 white dash LEDs; LED Angels; LED side repeaters; BMW Perf black grille; CSL reps; SSDD carbon diffuser; Monster Wrap black roof/clear front
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