Hard Accelrating

DrkBlu02GT · 08-01-2006, 05:05 PM

I have a 2002 Bone stock GT. The Only thing that is changed on it is the mufflers and there flowmasters. When I accelrate hard I get a rattling noise from my engine area and for the life of me i can't figure out what it is. I hope someone is able to help me out here. Its only under hard accelrating when the noise comes.

MattJ · 08-01-2006, 05:13 PM

Explain the situation more. For sure is it rattling? Mabye pinging?

08-01-2006, 06:36 PM

get gas from a mom and pop gas station?

*4.6 Love* · 08-02-2006, 08:44 AM

Need more info...are you sure its coming from your engine bay?

spike_africa · 08-02-2006, 08:51 AM

ratteling noise like marbles would lead me to belive you have nasty detonation, and thats bad.

You could have some carbon build which is causing the problem could be bad gas etc.. I would try some 93 to see if it stops if it does then its deffinatly detonation and you have some other problem.

DrkBlu02GT · 08-02-2006, 04:17 PM

i really cant explain what i am hearing it is like i need someone to drive around with me to hear... but it is really bugging me..

spike_africa · 08-03-2006, 08:33 AM

Ah so its a loose hardware kinda sound? that makes me feel alot better i thought you were having serious detonation i was gonna say **** man.

Can you open the hood and hear it? maybe rev the motor some and see if the noise happens again?

Ghostalker · 08-03-2006, 12:17 PM

What happens is the resonace from his new flowmasters is rattling his catalytic converter shrouds and creating a nasty rattling. My car does the same thing, so we are going to fix it soon, either with a nice new catted X or somehow adjusting the cats' heat shields.
EDIT: TRUE BLUE FTW!

cameltoe · 08-03-2006, 06:45 PM

Run high octane gas. It worked for me.

DrkBlu02GT · 08-04-2006, 12:43 PM

thanks guys for the help i know i really didnt explain it very well..
Oh by the way Ghostalker i am a chick..

narsh · 08-23-2006, 07:37 PM

I have the same issue with my 04 GT. It sounds like the Cats for sure.

I had the same thing going on with a 95 Eclipse turbo I had when I was younger. I installed a straight pipe and the problem went away.

I suspect the same thing on the Stang....

08-01-2006, 05:05 PM	#1 (permalink)
DrkBlu02GT Devil Chick Join Date: Jul 2005 Location: Maryland Posts: 198	Hard Accelrating I have a 2002 Bone stock GT. The Only thing that is changed on it is the mufflers and there flowmasters. When I accelrate hard I get a rattling noise from my engine area and for the life of me i can't figure out what it is. I hope someone is able to help me out here. Its only under hard accelrating when the noise comes. __________________ Dark Blue 02 GT 2002 Mustang GT 5spd Girls Love To Get Dirty Too!!!

08-01-2006, 05:13 PM	#2 (permalink)
MattJ Senior Member Join Date: Dec 2004 Location: Racine, WI Posts: 10,243	Explain the situation more. For sure is it rattling? Mabye pinging? __________________ 2001 Mustang GT Premium - Mineral Grey

08-02-2006, 08:44 AM	#4 (permalink)
4.6 Love Super Moderator Join Date: Sep 2004 Location: Mexico Posts: 6,154	Need more info...are you sure its coming from your engine bay? __________________ Go Cowboys! X pipe and flows

08-02-2006, 08:51 AM	#5 (permalink)
spike_africa Administrator Join Date: Sep 2004 Location: Orlando,Florida Posts: 7,445	ratteling noise like marbles would lead me to belive you have nasty detonation, and thats bad. You could have some carbon build which is causing the problem could be bad gas etc.. I would try some 93 to see if it stops if it does then its deffinatly detonation and you have some other problem. __________________ Dustin 2002 GT Mustang 5-Speed Drag Radials,Sprayed,Powershifted WOOO HOOOO!

08-02-2006, 04:17 PM	#6 (permalink)
DrkBlu02GT Devil Chick Join Date: Jul 2005 Location: Maryland Posts: 198	i really cant explain what i am hearing it is like i need someone to drive around with me to hear... but it is really bugging me.. __________________ Dark Blue 02 GT 2002 Mustang GT 5spd Girls Love To Get Dirty Too!!!

08-01-2006, 06:36 PM	#3 (permalink)
zigzaggthefag321 Posts: n/a	get gas from a mom and pop gas station?

08-03-2006, 08:33 AM	#7 (permalink)
spike_africa Administrator Join Date: Sep 2004 Location: Orlando,Florida Posts: 7,445	Ah so its a loose hardware kinda sound? that makes me feel alot better i thought you were having serious detonation i was gonna say **** man. Can you open the hood and hear it? maybe rev the motor some and see if the noise happens again? __________________ Dustin 2002 GT Mustang 5-Speed Drag Radials,Sprayed,Powershifted WOOO HOOOO!

08-03-2006, 12:17 PM	#8 (permalink)
Ghostalker BOLO 4 ME Join Date: Dec 2004 Location: Danbury, CT Posts: 2,308	What happens is the resonace from his new flowmasters is rattling his catalytic converter shrouds and creating a nasty rattling. My car does the same thing, so we are going to fix it soon, either with a nice new catted X or somehow adjusting the cats' heat shields. EDIT: TRUE BLUE FTW! __________________ Ghosty is in need of some mods...

08-03-2006, 06:45 PM	#9 (permalink)
cameltoe Senior Member Join Date: May 2006 Location: Sherman, Texas Posts: 110	Run high octane gas. It worked for me. __________________ Mods Steeda Tri-Ax BBK Cold Air 70mm BBK Throttle Body BBK UnderDrive Pulleys FRPP 3.73 Gears Eibach Sportline lowering spring Black Bullitt Wheels Raptor Performance Shift Light SCT XCalibrator 2 Tuner Coming Soon Maybe NOS

08-04-2006, 12:43 PM	#10 (permalink)
DrkBlu02GT Devil Chick Join Date: Jul 2005 Location: Maryland Posts: 198	thanks guys for the help i know i really didnt explain it very well.. Oh by the way Ghostalker i am a chick.. __________________ Dark Blue 02 GT 2002 Mustang GT 5spd Girls Love To Get Dirty Too!!!

08-23-2006, 07:37 PM	#11 (permalink)
narsh Junior Member Join Date: Feb 2006 Posts: 8	I have the same issue with my 04 GT. It sounds like the Cats for sure. I had the same thing going on with a 95 Eclipse turbo I had when I was younger. I installed a straight pipe and the problem went away. I suspect the same thing on the Stang....

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