rattling sound on bbk lt headers

projectGT · May 31st, 2011, 02:52 AM

Alright well I installed my bbk lt headers along with a bbk o/r h pipe, and when I'm coasting at a slow speed it seems to vibrate and make a rattling sound coming from the lt and mid pipe....any suggestions on why this is happening?

JK7208 · May 31st, 2011, 08:09 AM

did you put all the hangers back on, and retighten bolts after a few heat cycles

OptionalStang · May 31st, 2011, 08:13 AM

i seem to have a similar problem in my cougar, it sounds like the air is rattling on the inside and it gives it the mid 90's crappy pontiac rattle sound. Did you also delete or punch out you cats? I did, and i think thats the cause of the sound..

OptionalStang · May 31st, 2011, 11:51 AM

YouTube - ‪modded 1997 mercury cougar XR7‬&rlm;

hers a link to my exhaust scroll towards the end of the video and i slow rev it and then full as the rpm's get higher, it rattles more now that there are more upgrades on mycar, the video is a bit old..Does your rattle sound similar to mine?

projectGT · May 31st, 2011, 01:33 PM

JK7208-thats a good idea and i havent done it. I just tighten them when i first put them on.
optionalstang- i did delete the cats and the rattle kind of sounds like that

zinc-vert02 · May 31st, 2011, 01:37 PM

have you checked to make sure they are not hitting anything?

projectGT · May 31st, 2011, 07:44 PM

No I haven't im going to lift her and check her out. I also got some codes read today p0401, p1000, and p1132...anyone know anything about these? They say I'm running rich..

97S281 · May 31st, 2011, 07:52 PM

Originally Posted by projectGT

No I haven't im going to lift her and check her out. I also got some codes read today p0401, p1000, and p1132...anyone know anything about these? They say I'm running rich..

Did you use MIL eliminators on the rear o2 sensors? If not then that is what your codes are coming from.

projectGT · May 31st, 2011, 08:12 PM

Originally Posted by 97S281

Did you use MIL eliminators on the rear o2 sensors? If not then that is what your codes are coming from.

no i didn't. Ive heard of people saying that but no...i should huh? and one more question...i dont want to start a new thread, but when deleting the EGR, what vaccum hoses do you plug?

97S281 · May 31st, 2011, 08:13 PM

If it's a different topic then start a new thread.

OptionalStang · May 31st, 2011, 08:45 PM

if im correct those codes are similar to mine, all from the exhaust..i also have no cats and no rear o2 sensors and no MIL's yet...but im pretty shur his pipes arnt hitting anything,he would hear the loud hard clank as he went over bumps..I bet its turbulance in the exhaust..Have someone play with ur throttle while you crawl under thecar and listen to diffrent sections of your piping, thats how i found what my sound was.That was after i wrapped the headers where they meet the pips and the mid of the pipes thinking it was an exhaust leak..WASTE OF TIME,it was turbulance.Also i have mufflers that have like a 1in exit on the end so they are far from loud,and maby thats contributing to the problem, how is the end of your exhaust system set up.?

projectGT · June 1st, 2011, 12:22 AM

Makes sense what you said.^... its the long tubes to my h pipe then magnaflows and the and ugly three inch exhaust that I might just cut off

OptionalStang · June 1st, 2011, 09:04 AM

why is it 3in anyways..? 3in is pretty large.

projectGT · June 1st, 2011, 11:45 AM

I don't know why but I bought it like that. I'm thinking if just putting sine dumps or something.

Matcheskat · June 1st, 2011, 11:50 AM

You will need the MIL eliminators for the back as someone else said. Here is a link on how to make some.

projectGT · June 1st, 2011, 12:00 PM

That a pretty good link.. thanks!

OptionalStang · June 1st, 2011, 04:48 PM

no need for the mil's if your car isnt going to emissions and the cel doesnt bother you.hahah my cel,doorajar,wiperfluid and durring cirty driving the OD is all lit, looks like cristmas on my dash.

May 31st, 2011, 02:52 AM	#1
projectGT Regular 1996 mustang GT Join Date: Mar 2011 Location: vandenberg afb, ca Posts: 357 iTrader: 1 reviews	rattling sound on bbk lt headers Alright well I installed my bbk lt headers along with a bbk o/r h pipe, and when I'm coasting at a slow speed it seems to vibrate and make a rattling sound coming from the lt and mid pipe....any suggestions on why this is happening?

May 31st, 2011, 08:09 AM	#2
JK7208 Regular 1996 mustang gt 13.07@104.66 Join Date: Oct 2009 Location: frackville, pa Posts: 126 iTrader: 0 reviews	did you put all the hangers back on, and retighten bolts after a few heat cycles __________________ 1996 GT 5-SPEED PI SWAP Trick Flow 75mm TB/PL BBK CAI, UDP, Mac Longtubes and offroad Prochamber SCT tuner Seeda Triax Short Throw Shifter 3.73 Ford Racing gears 278rwhp/295rwtq

May 31st, 2011, 01:37 PM	#6
zinc-vert02 Bringing Yellow Back 2002 mustang gt 12.2 at 117 Join Date: Apr 2010 Location: WISCONSIN Posts: 9,965 iTrader: 1 reviews	have you checked to make sure they are not hitting anything? __________________ SOON TO BE 5.4 3V POWERD WITH A ROUSH CHARGER HELPING IT BAMA Performance Drag Team Member #4

May 31st, 2011, 08:13 PM	#10
97S281 Rollin' 18/ pushin' 2 1997 Saleen S281 Join Date: Feb 2007 Location: The lost highway Posts: 6,673 iTrader: 13 reviews	If it's a different topic then start a new thread. __________________ MODS IN GARAGE NCMM ORIGINAL BLOWN 96-98 CREW MEMBER # 1

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May 31st, 2011, 08:13 AM	#3
OptionalStang Banned 1997 cougar 4.6 1/2PI TooFast4theFUZZ Join Date: May 2011 Location: se wi Posts: 991 iTrader: 1 reviews	i seem to have a similar problem in my cougar, it sounds like the air is rattling on the inside and it gives it the mid 90's crappy pontiac rattle sound. Did you also delete or punch out you cats? I did, and i think thats the cause of the sound..

May 31st, 2011, 01:33 PM	#5
projectGT Regular 1996 mustang GT Join Date: Mar 2011 Location: vandenberg afb, ca Posts: 357 iTrader: 1 reviews	JK7208-thats a good idea and i havent done it. I just tighten them when i first put them on. optionalstang- i did delete the cats and the rattle kind of sounds like that

May 31st, 2011, 07:44 PM	#7
projectGT Regular 1996 mustang GT Join Date: Mar 2011 Location: vandenberg afb, ca Posts: 357 iTrader: 1 reviews	No I haven't im going to lift her and check her out. I also got some codes read today p0401, p1000, and p1132...anyone know anything about these? They say I'm running rich..

May 31st, 2011, 08:45 PM	#11
OptionalStang Banned 1997 cougar 4.6 1/2PI TooFast4theFUZZ Join Date: May 2011 Location: se wi Posts: 991 iTrader: 1 reviews	if im correct those codes are similar to mine, all from the exhaust..i also have no cats and no rear o2 sensors and no MIL's yet...but im pretty shur his pipes arnt hitting anything,he would hear the loud hard clank as he went over bumps..I bet its turbulance in the exhaust..Have someone play with ur throttle while you crawl under thecar and listen to diffrent sections of your piping, thats how i found what my sound was.That was after i wrapped the headers where they meet the pips and the mid of the pipes thinking it was an exhaust leak..WASTE OF TIME,it was turbulance.Also i have mufflers that have like a 1in exit on the end so they are far from loud,and maby thats contributing to the problem, how is the end of your exhaust system set up.?

June 1st, 2011, 12:22 AM	#12
projectGT Regular 1996 mustang GT Join Date: Mar 2011 Location: vandenberg afb, ca Posts: 357 iTrader: 1 reviews	Makes sense what you said.^... its the long tubes to my h pipe then magnaflows and the and ugly three inch exhaust that I might just cut off

June 1st, 2011, 09:04 AM	#13
OptionalStang Banned 1997 cougar 4.6 1/2PI TooFast4theFUZZ Join Date: May 2011 Location: se wi Posts: 991 iTrader: 1 reviews	why is it 3in anyways..? 3in is pretty large.

June 1st, 2011, 11:45 AM	#14
projectGT Regular 1996 mustang GT Join Date: Mar 2011 Location: vandenberg afb, ca Posts: 357 iTrader: 1 reviews	I don't know why but I bought it like that. I'm thinking if just putting sine dumps or something.

June 1st, 2011, 11:50 AM	#15
Matcheskat Newbie 1997 Mustang GT Join Date: Jul 2010 Location: Montoursville, PA Posts: 12 iTrader: 0 reviews	You will need the MIL eliminators for the back as someone else said. Here is a link on how to make some.

June 1st, 2011, 12:00 PM	#16
projectGT Regular 1996 mustang GT Join Date: Mar 2011 Location: vandenberg afb, ca Posts: 357 iTrader: 1 reviews	That a pretty good link.. thanks!

June 1st, 2011, 04:48 PM	#17
OptionalStang Banned 1997 cougar 4.6 1/2PI TooFast4theFUZZ Join Date: May 2011 Location: se wi Posts: 991 iTrader: 1 reviews	no need for the mil's if your car isnt going to emissions and the cel doesnt bother you.hahah my cel,doorajar,wiperfluid and durring cirty driving the OD is all lit, looks like cristmas on my dash.

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