All of a sudden whining (video link) Possible AT whine

hasta la pasta 27 · 03-26-2014, 02:33 AM

My car began making a whining noise today. I heard it when I stepped on it. It happens constantly but not audible at low Rpms. I rev the engine in neutral and the whine is still present. I stepped on it again just now and the smell of atf caught my nose. Also noticed a delay from 2nd to 3rd. Could the transmission be low on atf? Turbos replaced about 500 miles ago. I have a mechatronic sleeve I never installed. Transmission fluid was changed about 10k ago along with pan/filter but mechatronic sleeve was not leaking. Anyone ever experience this?

stashtrey · 03-26-2014, 02:44 AM

I didn't hear it. Hopefully nothing serious. Check your differential?

hasta la pasta 27 · 03-26-2014, 08:39 AM

Quote:

Originally Posted by stashtrey

I didn't hear it. Hopefully nothing serious. Check your differential?

Sounds almost supercharged from the note of the sound and how loud it is. I believe it's most audible at high Rpms in the video. It's not the differential, definitely coming from more towards the front

Eat.Sleep.Race · 03-26-2014, 09:21 AM

Quote:

Originally Posted by ericruiz911

Sounds almost supercharged from the note of the sound and how loud it is. I believe it's most audible at high Rpms in the video. It's not the differential, definitely coming from more towards the front

I definitely hear it, but no idea what it may be.. Any of your belts have issues? Maybe a whining water pump? Do you have a loose intake system maybe sucking air in from a pocket causing the noise?

JStang · 03-26-2014, 10:02 AM

My wife's 328i was making a similar noise and the dealer replaced her differential. That alone almost paid for her extended warranty.

WedgePerformance · 03-26-2014, 10:47 AM

Quote:

Originally Posted by JStang

My wife's 328i was making a similar noise and the dealer replaced her differential. That alone almost paid for her extended warranty.

My wife has a whining differential also, but I didn't get an extended warranty with my wife.

JStang · 03-26-2014, 11:05 AM

Quote:

Originally Posted by WedgePerformance

My wife has a whining differential also, but I didn't get an extended warranty with my wife.

NEVER EVER purchase the wife without the extended warranty. That's day one stuff.

hasta la pasta 27 · 03-26-2014, 05:45 PM

After my tech, along with both master techs, looked at it for about an hour they are leaning towards tensioner pulley. The whine is more than likely traveling through the parts and causing it to be audible on the interior. I'm gonna go ahead and change it. Won't know until I pull it out

WedgePerformance · 03-26-2014, 08:57 PM

Quote:

Originally Posted by JStang

NEVER EVER purchase the wife without the extended warranty. That's day one stuff.

I was told if you don't get it right the first time, try, and try again. Well I finally got this one right.

dsjr2006 · 03-27-2014, 01:10 AM

Auto trannys typically don't whine. Usually that is a bearing issue and most common is pulleys, wheels, and differentials.

HollowPoints · 03-27-2014, 09:04 AM

I had a whining noise that rose with rpm, for years I dealt with it thinking turbos were bad, turned out to be a bad power steering pump...

alex35i · 03-27-2014, 10:25 AM

Its crying!! How sedðŸ˜*

03-26-2014, 02:33 AM	#1
hasta la pasta 27 Captain 46 Rep 674 Posts Drives: 2014 Chevy Silverado Join Date: May 2012 Location: MIAMI, FL iTrader: (1)	All of a sudden whining (video link) Possible AT whine My car began making a whining noise today. I heard it when I stepped on it. It happens constantly but not audible at low Rpms. I rev the engine in neutral and the whine is still present. I stepped on it again just now and the smell of atf caught my nose. Also noticed a delay from 2nd to 3rd. Could the transmission be low on atf? Turbos replaced about 500 miles ago. I have a mechatronic sleeve I never installed. Transmission fluid was changed about 10k ago along with pan/filter but mechatronic sleeve was not leaking. Anyone ever experience this?
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03-26-2014, 02:44 AM	#2
stashtrey Lieutenant Colonel 295 Rep 1,834 Posts Drives: 08 E90 335xi TiAg Join Date: Dec 2012 Location: Sacramento, CA iTrader: (8) Garage List 2008 E90 335xi Sedan [0.00]	I didn't hear it. Hopefully nothing serious. Check your differential?
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03-26-2014, 10:02 AM	#5
JStang Brigadier General 572 Rep 3,627 Posts Drives: FDB M3 CS Join Date: Dec 2010 Location: St. Petersburg, FL iTrader: (9)	My wife's 328i was making a similar noise and the dealer replaced her differential. That alone almost paid for her extended warranty.
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03-26-2014, 05:45 PM	#8
hasta la pasta 27 Captain 46 Rep 674 Posts Drives: 2014 Chevy Silverado Join Date: May 2012 Location: MIAMI, FL iTrader: (1)	After my tech, along with both master techs, looked at it for about an hour they are leaning towards tensioner pulley. The whine is more than likely traveling through the parts and causing it to be audible on the interior. I'm gonna go ahead and change it. Won't know until I pull it out
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03-27-2014, 01:10 AM	#10
dsjr2006 Captain 159 Rep 848 Posts Drives: '01 E39 540iA, '09 E90 M3 Join Date: May 2013 Location: Metro Detroit iTrader: (1) Garage List 2010 BMW 335i [0.00] 2001 BMW 540i [0.00]	Auto trannys typically don't whine. Usually that is a bearing issue and most common is pulleys, wheels, and differentials. __________________ E90 M3 DCT LCI \| E90 LCI N54 M-Sport(retired) \| E90 Technical Docs download: http://j.mp/bmwe90docs *good read, very detailed.
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03-27-2014, 09:04 AM	#11
HollowPoints Private 10 Rep 76 Posts Drives: 2007 335i Join Date: Nov 2010 Location: CT iTrader: (0)	I had a whining noise that rose with rpm, for years I dealt with it thinking turbos were bad, turned out to be a bad power steering pump...
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03-27-2014, 10:25 AM	#12
alex35i Private 10 Rep 98 Posts Drives: BSM 2008 E90 335XI Join Date: Aug 2013 Location: North Georgia iTrader: (1)	Its crying!! How sedðŸ˜*
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