Whirring Sound?

bimwad · Sat, Aug-18-2007, 03:00:13 AM

After car has been running and temps up, there seems to be a whirring sound coming from the intake manifold area. Dealer said it was typical but could not tell me what was causing the sound???? Any ideas?

PhYrE · Sat, Aug-18-2007, 03:09:14 AM

That's a pretty big area.
There's the oil separator under the manifold that has moving parts. The alternator is under the manifold and forward quite a bit. Other than that, there's not a whole lot under there. Can you be more specific?

-M

///M3*Snow22 · Sat, Aug-18-2007, 03:22:44 AM

i think ur hearing the sound of a bmw to be quite honest.

PhYrE · Sat, Aug-18-2007, 03:26:12 AM

Quote:

Originally Posted by ///M3*Snow22

i think ur hearing the sound of a bmw to be quite honest.

Vroom?

-M

Volfinator · Sat, Aug-18-2007, 04:31:47 AM

Quote:

Originally Posted by ///M3*Snow22

i think ur hearing the sound of a bmw to be quite honest.

Anybody that wants a car that idles quietly should stay away from BMW's. There are 5 BMW's in my family (2 e36's, 1 e46, 1 e39, and 1 e53) and they all are anything but dead silent at idle. Now they're not annoyingly loud or anything, but BMW's idle with a certain personality.

///M3*Snow22 · Sat, Aug-18-2007, 05:41:43 PM

i have driven almost every bimmer except the new m6 and an m1 and they have a purring sound to them at idle...nothing to worry bout.

powershift_5 · Sun, Aug-19-2007, 06:47:21 PM

my first guess would be the alternator(my spelling sucks), if not then check the top pully nearest to the alt......may need some lube. otherwise the clutch fan is known to go bad. make sure its not one of these first. sounds tend to travel and it's not likely to have that sort of sound in your intake unless the manifold itself is cracked!!!

Van Dusen · Mon, Aug-20-2007, 03:37:27 AM

Could also be the water pump needs to be replaced??

powershift_5 · Mon, Aug-20-2007, 10:24:38 PM

ok.........my car was making the same noise for a while......found out it was my fan(clutch fan) that was rubbing on the sheild around it. the plastic clips were out of align and 1 was broke. so dumb, so easy. check top and bottom.

Sat, Aug-18-2007, 03:00:13 AM	#1
bimwad Registered User Join Date: Nov 2005 Posts: 100 Reputation: 0	Whirring Sound? After car has been running and temps up, there seems to be a whirring sound coming from the intake manifold area. Dealer said it was typical but could not tell me what was causing the sound???? Any ideas?

Sat, Aug-18-2007, 03:09:14 AM	#2
PhYrE Mmmmm-3 Join Date: May 2006 Posts: 2,065 Reputation: 0 Location: Richmond Hill (Toronto), ON	That's a pretty big area. There's the oil separator under the manifold that has moving parts. The alternator is under the manifold and forward quite a bit. Other than that, there's not a whole lot under there. Can you be more specific? -M __________________ 2008 BMW M3 Coupe (White on Fox Red) CF everything / Lowering springs / EDC / Tint AA Short Shifter SOLD - 1997 BMW M3 Coupe (Estoril Blue] VFE Supercharger Stage 1 Bilstein Sport Shocks/Struts Euro-M3 Springs Two-Piece Euro Rotors JVC KD-AR5500 Headunit Euro Headlights w/ TSX Projector Retrofit and HIDs VDO Gauges Harmon Kardon Amplifier retrofit 18-button OBC conversion retrofit BMW Euro (clear) corners, tails, sidemarkers ROH RT wheels / (f) 245/40/17 (r) 265/40/17 Toyo T1R

Sat, Aug-18-2007, 03:22:44 AM	#3
///M3*Snow22 Registered abuser Join Date: Jan 2006 Posts: 1,624 Reputation: 0 Location: Redmond	i think ur hearing the sound of a bmw to be quite honest. __________________ 97' Alpine m3 - sold 89' Zinno 325is - sold 89' Alpine 325is - totaled by a female 98' Estoril m3 - deer. 95' Daytona m3 - Current <3 musicmorphone.tumblr.com - click and follow for great electronic music!

Sat, Aug-18-2007, 05:41:43 PM	#6
///M3*Snow22 Registered abuser Join Date: Jan 2006 Posts: 1,624 Reputation: 0 Location: Redmond	i have driven almost every bimmer except the new m6 and an m1 and they have a purring sound to them at idle...nothing to worry bout. __________________ 97' Alpine m3 - sold 89' Zinno 325is - sold 89' Alpine 325is - totaled by a female 98' Estoril m3 - deer. 95' Daytona m3 - Current <3 musicmorphone.tumblr.com - click and follow for great electronic music!

Sun, Aug-19-2007, 06:47:21 PM	#7
powershift_5 you can always go faster Join Date: Aug 2007 Posts: 4 Reputation: 0	whirring sound my first guess would be the alternator(my spelling sucks), if not then check the top pully nearest to the alt......may need some lube. otherwise the clutch fan is known to go bad. make sure its not one of these first. sounds tend to travel and it's not likely to have that sort of sound in your intake unless the manifold itself is cracked!!!

Mon, Aug-20-2007, 03:37:27 AM	#8
Van Dusen ///M VanmanRacing Join Date: Jul 2005 Posts: 202 Reputation: 0	Could also be the water pump needs to be replaced??

Mon, Aug-20-2007, 10:24:38 PM	#9
powershift_5 you can always go faster Join Date: Aug 2007 Posts: 4 Reputation: 0	really dumb ok.........my car was making the same noise for a while......found out it was my fan(clutch fan) that was rubbing on the sheild around it. the plastic clips were out of align and 1 was broke. so dumb, so easy. check top and bottom.

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