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| E36 M3 (1992-1999) {Euro - S50 B32 321hp @ 7400 rpm} {U.S. - S52 B32 240 hp @ 6000 rpm} Total Produced: 71,212 - Years Produced: 1992 to 1999 |
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Fri, Jun-15-2012, 07:05:33 AM
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#1 |
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Registered User
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can anyone help me figure this knocking sound on my m3 ?
Hi guys I'm a proud new owner of a 97 e36 M3 with 144k
I have a problem with the engine, its making a knocking sound and i'm not comfortable with it Its sounded like its coming from the bottom of the engine, and I havent got a clue This car have a header , as I was told from the previous owner, and any input, advise is greatly appreciated guys Thx video link http://www.youtube.com/watch?v=9WE1E...ature=youtu.be |
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Fri, Jun-15-2012, 08:08:38 AM
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#2 |
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E-Famous
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Re: can anyone help me figure this knocking sound on my m3 ?
Does it increase with RPMs? If it's coming from the block, I wouldn't drive it, in fact I wouldn't even let it run much more than it already has. If it's rod knock, you're going to need to either rebuild your current motor or swap in a new one, which is not a fun job. I'm in the middle of the same project, so I know. Did you just buy the car? How long has it been knocking for? Are you low on oil?
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Fri, Jun-15-2012, 11:37:15 AM
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#3 |
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95M3 04ZHP
Join Date: Mar 2009
Posts: 124
Reputation: 0
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Re: can anyone help me figure this knocking sound on my m3 ?
This type sound is often caused by a loose spark plug. Check them and hope that is it.
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Fri, Jun-15-2012, 02:17:40 PM
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Craig
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Re: can anyone help me figure this knocking sound on my m3 ?
Quote:
That said, it sounds like rod knock to me... 
__________________
95 BMW M3 Current Project Cosmos Black, E46 6SP, VSL Rad, Stewart Water Pump, AA Header with 3" exhaust, aFe CAI, Euro HFM, 24lbs/hr injectors, unknown tune?, BW SS Brake Lines, Hawk HP+ Pads, M X-Brace, Mason Engineering Aluminum Strut Bar, MM Underpanel. To Do: Overhaul rear suspension, front suspension Tucson, AZ |
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Sat, Jun-16-2012, 01:36:31 AM
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#5 |
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Registered User
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Re: can anyone help me figure this knocking sound on my m3 ?
Well i did research it, could be the spark plug , could b worse
I' ll keep u guys updated Thx for input |
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Sat, Jun-16-2012, 01:45:22 AM
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Craig
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Re: can anyone help me figure this knocking sound on my m3 ?
Quote:
__________________
95 BMW M3 Current Project Cosmos Black, E46 6SP, VSL Rad, Stewart Water Pump, AA Header with 3" exhaust, aFe CAI, Euro HFM, 24lbs/hr injectors, unknown tune?, BW SS Brake Lines, Hawk HP+ Pads, M X-Brace, Mason Engineering Aluminum Strut Bar, MM Underpanel. To Do: Overhaul rear suspension, front suspension Tucson, AZ |
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Wed, Jun-20-2012, 02:07:45 AM
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has left the building
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Re: can anyone help me figure this knocking sound on my m3 ?
Quote:
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Wed, Jun-20-2012, 12:59:57 AM
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#8 | |
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Registered User
Join Date: Nov 2007
Posts: 670
Reputation: 0
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Re: can anyone help me figure this knocking sound on my m3 ?
Quote:
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Wed, Jun-20-2012, 07:28:26 PM
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#9 |
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Registered User
Join Date: Dec 2009
Posts: 695
In the garage:
Reputation: 0
Location: Kalamazoo
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Re: can anyone help me figure this knocking sound on my m3 ?
my votes rod knock but I'm hoping for your sake its a plug...
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Thu, Dec-06-2012, 05:09:32 AM
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#10 |
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Registered User
Join Date: Mar 2012
Posts: 20
Reputation: 0
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Re: can anyone help me figure this knocking sound on my m3 ?
what was it?!
__________________
1995 Daytona Violet Track Project 
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