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stupid metal rattling noise at 3k rpm! EDIT: SOLUTION FOUND 9/7/07

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Old 08-27-2007, 03:32 PM   #1
imyy4u
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Default stupid metal rattling noise at 3k rpm! EDIT: SOLUTION FOUND 9/7/07

OK, so I've ranted about this before, but I still have this issue. When the engine is cold, as in has been sitting for 8 hours + cold, and I start it up, and then accelerate in 1st gear up to 3k rpm, I hear a really loud metallic rattling that goes away by 3300 rpms. As the engine warms up the rattle gets less and less, until I don't hear it anymore or it's just so brief/muffled it is neglible. WTF could this be? Took it to the dealer and they found no problems.

I just made another appt. for September 5th at Joe Madden Ford in Naperville IL, so hopefully they can find the problem. Has anyone else had a similar issue, and if so, what was it? Any/all advice welcome...I would LOVE to know what this is. BTW, checked the exhaust from engine to tailpipe, and it's tight as can be.

EDIT: solution found, look at my post below.
http://www.mustangforums.com/fb.asp?m=3829061
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2006 ford mustang gt coupe 5spd
black on black, shaker 1000, IUP, 3.55 gears
slp loudmouth exhaust
13.498 in the 1/4

2003 s/c debadged pwp rsx-s
265whp/186wtq = ~302hp
sold 7/25/06
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Old 08-27-2007, 03:39 PM   #2
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Default RE: stupid metal rattling noise at 3k rpm!

I have a thin metallic rattle coming from the front underbody of the car. Noticable around 2500 RPMs (Found this out when driving down I-95 for 16 hours.) But it doesn't matter the weather conditions, or whether it's warm or not. Just happens any time while driving and it drives me insane.. Dealer couldn't find anything wrong either, so no ideas..
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Old 08-27-2007, 03:43 PM   #3
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Default RE: stupid metal rattling noise at 3k rpm!

I had a metallic rattle at about 1000 RPM. Turned out to be one of the metal clamps on my axle back mufflers. It's POSSIBLE that you have something similar and that it goes awayas itheats up due to the pipes expanding. Just a guess...

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Old 08-27-2007, 03:48 PM   #4
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Default RE: stupid metal rattling noise at 3k rpm!

Quote:
ORIGINAL: Menace

I have a thin metallic rattle coming from the front underbody of the car. Noticable around 2500 RPMs (Found this out when driving down I-95 for 16 hours.) But it doesn't matter the weather conditions, or whether it's warm or not. Just happens any time while driving and it drives me insane.. Dealer couldn't find anything wrong either, so no ideas..
sounds similar to mine...but i notice when the ENGINE warms up, it gets quieter, or maybe i just don't notice it as much...hmm. and mine is right at 3000 rpm...maybe 2800 or so. it is a thin metalli rattle from the front underbody (i think). drives me insane....ill keep you updated if you keep me updated.

anyone else have any advice?
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2006 ford mustang gt coupe 5spd
black on black, shaker 1000, IUP, 3.55 gears
slp loudmouth exhaust
13.498 in the 1/4

2003 s/c debadged pwp rsx-s
265whp/186wtq = ~302hp
sold 7/25/06
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Old 08-27-2007, 03:48 PM   #5
marcuskeeler
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Default RE: stupid metal rattling noise at 3k rpm!

Just be careful you're not talking about motor pinging, or as we call it, the death rattle.
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Old 08-27-2007, 03:53 PM   #6
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Default RE: stupid metal rattling noise at 3k rpm!

Sounds like exhaust to me - I've had on another car where a heat shield was just enough in contact with the exhaust to rattle when cold and go away when warm.. took shaking the exhaust when cold and having someone underneath to narrow down the area, and then looking for a little tiny rub mark on the heatshield.. good news is that I just had to tweak it 1/4" and it went away. So I'd say to look for areas of possible contact on the exhaust..
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Old 08-27-2007, 03:54 PM   #7
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Default RE: stupid metal rattling noise at 3k rpm!

Nope cause i still have mine to...i doubt 3+ people have pinging at those low RPMs only at 3kish. With the o/r pipe i dont notice it unless i gradually take it up to 3k
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Old 08-27-2007, 04:09 PM   #8
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Default RE: stupid metal rattling noise at 3k rpm!

My problem was the mid pipes hangers hitting the place they hang in
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Old 08-27-2007, 05:26 PM   #9
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Default RE: stupid metal rattling noise at 3k rpm!

Had this problem with mine and it happened to be in my IMCO mufflers one of the ( Baffels sp?) pieces of metal broke off I got it replaced w/flomasters no problems since then .
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Old 08-27-2007, 10:15 PM   #10
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Default RE: stupid metal rattling noise at 3k rpm!

Happens on my 05', had it to the dealer several times already, Ijustbought the car 3 months ago. Its not the heat shields and they have replaced the cats (warranty is a wonderful thing), I'll keep you posted, its going backin tomorrow. I'm pretty sure its not there once the car is warmed up. The bummer is I'm waiting on my upgrades till I get this sorted out.
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Old 08-27-2007, 10:22 PM   #11
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Default RE: stupid metal rattling noise at 3k rpm!

everyone has rattle problems with the 05+ mustang. just turn your music up. Its a mustang, its not gonna be perfect
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Old 08-28-2007, 07:52 AM   #12
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Default RE: stupid metal rattling noise at 3k rpm!

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ORIGINAL: LesteR723

everyone has rattle problems with the 05+ mustang. just turn your music up. Its a mustang, its not gonna be perfect
Yes I understand every mustang has certain rattles, but this is not a "normal" rattle. This is a metallic rattle, almost a grinding, that does NOT sound good. I do not want to wait until the warranty is up and then see I have permanent damage. I paid good money for this car, there is NO reason I should settle for or deal with such a loud, annoying, rattle that people outside the car can hear when I accelerate and think, "wow, what a piece of crap, that idiot can't even afford to fix his new car" etc. Frankly, it's embarrassing.
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2006 ford mustang gt coupe 5spd
black on black, shaker 1000, IUP, 3.55 gears
slp loudmouth exhaust
13.498 in the 1/4

2003 s/c debadged pwp rsx-s
265whp/186wtq = ~302hp
sold 7/25/06
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Old 08-28-2007, 07:54 AM   #13
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Default RE: stupid metal rattling noise at 3k rpm!

please keep me updated!!!

Quote:
ORIGINAL: mikeei

Happens on my 05', had it to the dealer several times already, Ijustbought the car 3 months ago. Its not the heat shields and they have replaced the cats (warranty is a wonderful thing), I'll keep you posted, its going backin tomorrow. I'm pretty sure its not there once the car is warmed up. The bummer is I'm waiting on my upgrades till I get this sorted out.
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-john

2006 ford mustang gt coupe 5spd
black on black, shaker 1000, IUP, 3.55 gears
slp loudmouth exhaust
13.498 in the 1/4

2003 s/c debadged pwp rsx-s
265whp/186wtq = ~302hp
sold 7/25/06
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Old 08-28-2007, 08:01 AM   #14
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Default RE: stupid metal rattling noise at 3k rpm!

I have the same problem. I believe it is in the mufflers. Could be the clamp. I took my aftermarket ones off and put the stockers back on and it was gone. So it is either something internally in the muffler or the clamp because the clamps tighten up way before the pipes are ever tightly clamped on. But my car has the exact same symptoms that you described above wheneever I have my aftermarket mufflers on. Hope that helps.
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Old 08-28-2007, 08:36 AM   #15
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Default RE: stupid metal rattling noise at 3k rpm!

Quote:
ORIGINAL: ErcWrestlr

I have the same problem. I believe it is in the mufflers. Could be the clamp. I took my aftermarket ones off and put the stockers back on and it was gone. So it is either something internally in the muffler or the clamp because the clamps tighten up way before the pipes are ever tightly clamped on. But my car has the exact same symptoms that you described above wheneever I have my aftermarket mufflers on. Hope that helps.
Nope cant be cause i have stingers and different clamps altogether. Sorry to burst your bubble.
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Old 08-28-2007, 09:11 AM   #16
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Default RE: stupid metal rattling noise at 3k rpm!

i've got this same noise. only when the engine is cold. once it warms up the noise goes away. it won't make the noise if i slowly accelerate, but if i even moderately accelerate it makes the rattle noise. first thought was a heatshield but those all seem tight.
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Old 08-28-2007, 11:02 AM   #17
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Default RE: stupid metal rattling noise at 3k rpm!

Quote:
ORIGINAL: howarmat

Quote:
ORIGINAL: ErcWrestlr

I have the same problem. I believe it is in the mufflers. Could be the clamp. I took my aftermarket ones off and put the stockers back on and it was gone. So it is either something internally in the muffler or the clamp because the clamps tighten up way before the pipes are ever tightly clamped on. But my car has the exact same symptoms that you described above wheneever I have my aftermarket mufflers on. Hope that helps.
Nope cant be cause i have stingers and different clamps altogether. Sorry to burst your bubble.
Then I'm not really sure. I know I hear the noise at 3k rpm's on a cold start for about 2 minutes of initial driving. I assumed it was the mufflers.
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Old 08-28-2007, 11:13 AM   #18
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Default RE: stupid metal rattling noise at 3k rpm!

i had a rattle at around 1500-2000 rpms. prob a totally different sound from urs, but it came from a broken or loose "trans cross brace". Maybe that would help. good luck
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Old 09-07-2007, 07:59 AM   #19
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Default Solution found!!!!

So, I FINALLY got the problem fixed! My normal Ford dealership was closed, so I had to take it to Woodfield Ford in Schaumburg, IL. Luckily, they had seen the problem before - and they're trying to get Ford to issue a TSB about this as it is common. So, here is the solution - and if anyone else has a problem, tell them to call Woodfield Ford in IL - 847 882 5031 - they've fixed the problem before, and did it again with me!

EDIT: the problem was the spacer plate between engine and transmission contacting the back of the engine - print the following out and give it to your dealer if need be!

[IMG]local://upfiles/44457/50CF3B92AD2F47B29EA2C9419A316316.jpg[/IMG]
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2006 ford mustang gt coupe 5spd
black on black, shaker 1000, IUP, 3.55 gears
slp loudmouth exhaust
13.498 in the 1/4

2003 s/c debadged pwp rsx-s
265whp/186wtq = ~302hp
sold 7/25/06
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Old 09-07-2007, 08:02 AM   #20
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Default RE: stupid metal rattling noise at 3k rpm!

Quote:
ORIGINAL: ErcWrestlr

Quote:
ORIGINAL: howarmat

Quote:
ORIGINAL: ErcWrestlr

I have the same problem. I believe it is in the mufflers. Could be the clamp. I took my aftermarket ones off and put the stockers back on and it was gone. So it is either something internally in the muffler or the clamp because the clamps tighten up way before the pipes are ever tightly clamped on. But my car has the exact same symptoms that you described above wheneever I have my aftermarket mufflers on. Hope that helps.
Nope cant be cause i have stingers and different clamps altogether. Sorry to burst your bubble.
Then I'm not really sure. I know I hear the noise at 3k rpm's on a cold start for about 2 minutes of initial driving. I assumed it was the mufflers.
read my tech report below - it's probably the spacer between engine and trans, like it has been for so many of us already...
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2006 ford mustang gt coupe 5spd
black on black, shaker 1000, IUP, 3.55 gears
slp loudmouth exhaust
13.498 in the 1/4

2003 s/c debadged pwp rsx-s
265whp/186wtq = ~302hp
sold 7/25/06
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Old 09-07-2007, 08:02 AM
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