strange sound

monterey · 07-14-2018, 02:14 PM

I got this strange sound after tuning my car. It sounds like coins rattling in a can. It last for about 2 secs and can only be heard after 4k rpm. It sound like it's coming more from the bottom of the car. Almost seems like its associated with the intake rattle when i put in my dinan intake.

shimmy23 · 07-14-2018, 02:35 PM

Could it be a heat shield ?

BOOF-M3 · 07-14-2018, 02:38 PM

May be loose exhaust. Probably gonna be trial and error.

M43S7RO · 07-14-2018, 03:47 PM

I used to get a similar sound, tightened up catback exhaust clamps and went away.

monterey · 07-14-2018, 04:34 PM

Quote:

Originally Posted by M43S7RO

I used to get a similar sound, tightened up catback exhaust clamps and went away.

my exhaust is welded though

07-14-2018, 02:14 PM	#1
monterey Major 339 Rep 1,239 Posts Drives: 2008 M3 Join Date: Mar 2016 Location: United States iTrader: (1)	strange sound I got this strange sound after tuning my car. It sounds like coins rattling in a can. It last for about 2 secs and can only be heard after 4k rpm. It sound like it's coming more from the bottom of the car. Almost seems like its associated with the intake rattle when i put in my dinan intake. __________________ A job is nothing but work.
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07-14-2018, 02:35 PM	#2
shimmy23 F15 daddymobile 2349 Rep 3,510 Posts Drives: GS X5 Join Date: Aug 2011 Location: WA iTrader: (3)	Could it be a heat shield ?
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07-14-2018, 02:38 PM	#3
BOOF-M3 Brigadier General 4452 Rep 4,014 Posts Drives: 2011 M3 Join Date: Nov 2014 Location: South Pasadena Florida iTrader: (1)	May be loose exhaust. Probably gonna be trial and error.
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07-14-2018, 03:47 PM	#4
M43S7RO Major 502 Rep 1,055 Posts Drives: Jerez Black E92 M3 Join Date: Sep 2015 Location: Peoria, AZ iTrader: (13)	I used to get a similar sound, tightened up catback exhaust clamps and went away.
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