slight rattling under the car

stprorolla49

Active Member

Oct 9, 2004

1,455

15

39

Fairfield, CT/North Jersey

Jul 20, 2005

#1

• Jul 20, 2005

• #1

heres one that has stumped me for a week or so....lately when i hammer it, or even when im merging onto the highway or something, i hear a rattling under the car that sounds like sheet metal rattling against other metal.....ive been so busy all week getting a job, that i haven't really givin it much thought....well i just dropped my bro off somewhere, and on my way back i had me some fun, and as i was hammering it pulling onto a main road in 1st, i heard the rattling......so when i got home i jacked teh car up, snugged all of teh h-pipe bolts down, and looked at everything that could possibly make this noise......any ideas here??? i also checked the brake dust shield which was previously lose, but it wasn't loose.....please help me out guys

 

stprorolla49

Active Member

Oct 9, 2004

1,455

15

39

Fairfield, CT/North Jersey

Jul 20, 2005

#2

• Jul 20, 2005

• #2

ttt..not a good noise guys........

 

donkey_punch

New Member

Jan 16, 2004

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northern****ingjersey

Jul 20, 2005

#3

• Jul 20, 2005

• #3

a heat shield. i wish i could tell you where its located. but i had my mechanic pull it. the hardware holding it in place rusted and it became loose, making it rattle.
maybe someone else can give you a clue as to where the heat shield is.

 

donjohn

New Member

Feb 7, 2004

1,757

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0

Irvine - Southern California

Jul 20, 2005

#4

• Jul 20, 2005

• #4

heat shild? no idea

i recently removed my dogbone and pinion snubber b/c it was making noise, it's worthless and ez to remove, right before the diff. housing on the d/s side

exhaust isn't rattling against the gas tank or anything is it?

 

SeventyMach1

Keep it lubed .... keep it straight .... and keep

Mar 30, 2005

1,940

3

36

North Carolina

Jul 20, 2005

#5

• Jul 20, 2005

• #5

I just recently had a similar problem. Found out that the two side bolts that bolt up my tranny crossmember had worked their way loose a little bit. Check that, too. It only made noise when I was taking off hard or braking hard.

 

BlackVert

15 Year Member

Oct 3, 2003

5,589

9

98

Bethesda, MD

Jul 20, 2005

#6

• Jul 20, 2005

• #6

mine was an exhaust pipe that had come loose.

 

F

fiveohh94gt

New Member

Dec 26, 2003

277

0

0

Jul 20, 2005

#7

• Jul 20, 2005

• #7

check your rear sway bar, mine cracked right where the bolt goes through on one side and would rattle only when i accelerated hard. from what i've heard its common for them to break

 

BLACKGTS

New Member

May 15, 2005

4

0

0

VA

Jul 20, 2005

#8

• Jul 20, 2005

• #8

If youve had headers put on recently you might want to check your oil dipstick bracket. The speed shop I go to forgot to re-install it when I got my longtubes put on and it would hit against the header around 2k rpm or whenever I was slowing down.

 

stprorolla49

Active Member

Oct 9, 2004

1,455

15

39

Fairfield, CT/North Jersey

Jul 21, 2005

#9

• Jul 21, 2005

• #9

thanks a lot guys.....ima check all this **** out later on when i get home from worky....

 

Black95GTS

Active Member

Jan 8, 2004

1,644

3

38

Marlborough, MA

Jul 21, 2005

#10

• Jul 21, 2005

• #10

I had one of the exhaust clamps come loose a while back that made the noise you describe, it also made that noice when I drove up a steep hill as well.

 

MehakGT

Founding Member

May 30, 2002

544

0

0

Toronto, Ontario, Canada

Jul 21, 2005

#11

• Jul 21, 2005

• #11

Exact same problem here, but haven't had a chance to check it out.

I was thinking driver side header, but I dont think my exhaust is any louder since it started doing it.

 

X

xCOWBOYx

New Member

Jun 29, 2005

16

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0

Jul 21, 2005

#12

• Jul 21, 2005

• #12

I have the same problem, seems to occur between 3250-3750 rpm, and after that I wouldn't be able to hear it over the exhaust anyways But yea, mine sounds like it's coming from somewhere around the headers, maybe the heat shield? Anyways, doesn't do anything performance wise, just a noise....mine's been like that since I got it, good 20k miles, never really bothered me but I would love to know what it is...I always just assumed a restrictive or rattling header

 

rock4451

20+ Year Stangneter

Nov 30, 2004

12

2

29

New Baden, IL

Nov 4, 2006

#13

• Nov 4, 2006

• #13

i have a similar problem also. sounds like its coming from the passenger side. rattling kinda like pennies, not in neutral tho, or revving it. only rattles when i'm moving around 1600-1750 rpms in any gear. any suggestions?

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

31,179

33

129

Nov 5, 2006

#14

• Nov 5, 2006

• #14

rock4451 said:

i have a similar problem also. sounds like its coming from the passenger side. rattling kinda like pennies, not in neutral tho, or revving it. only rattles when i'm moving around 1600-1750 rpms in any gear. any suggestions?

Click to expand...

I wasn't sure what you meant. If the noise is only RPM dependant, check the cats. 1500-1800 RPM is often a sweet spot frequency for rattling when a spot weld inside a cat lets go.

Good luck.

 

1TallMF

New Member

Apr 17, 2006

955

1

0

Montreal

Nov 5, 2006

#15

• Nov 5, 2006

• #15

Now you guys got me thinking... mine does that once in a while when I hammer it, but I always assumed it was pinging I was hearing. However, when I hear it, I don't notice a loss in power, just the noise. It does sound exactly as you describe it, metal to metal rattling under the car, around the crossover pipe area.
So maybe its not pinging.... do you guys notice a significant drop in power when you hear pinging?

 

rock4451

20+ Year Stangneter

Nov 30, 2004

12

2

29

New Baden, IL

Nov 5, 2006

#16

• Nov 5, 2006

• #16

i dont think mine's pinging, but no i notice no loss in power when i hear it. Hissin- no its not rpm dependent its only when i'm moving...

 

stprorolla49

Active Member

Oct 9, 2004

1,455

15

39

Fairfield, CT/North Jersey

Nov 5, 2006

#17

• Nov 5, 2006

• #17

wow this was a long time ago...i think it was the u-bolt on my h-pipe that was loose

 

badstang123

New Member

Jan 17, 2006

397

0

0

Santa Clarita, CA

Nov 5, 2006

#18

• Nov 5, 2006

• #18

I have that rattling too...I don't know what it is but I hate it

 

L

LR5.0

New Member

Jun 28, 2004

56

0

0

Nov 6, 2006

#19

• Nov 6, 2006

• #19

i have the same problem and it is coming from the metal plate below the coolant reservoir, one of the bolts came loose and it would rattle pretty loud when i would get on it..

 

Pokageek

Active Member

Jun 10, 2005

2,767

0

46

MA, USA

Nov 6, 2006

#20

• Nov 6, 2006

• #20

rock4451 said:

i dont think mine's pinging, but no i notice no loss in power when i hear it. Hissin- no its not rpm dependent its only when i'm moving...

Click to expand...

Same problem here...sorry I have no answer. Not pinging, exaust is TIGHT. I am going to check the suggestions here..