Tapping behind dashboard when accelerating.

ModMustang97GT · January 30th, 2008, 02:50 PM

So when I accelerate, above 2000 rpm I hear a tapping kind of noise that goes up with RPM. But I only notice it above 2000 rpm. And only when under load. Is my tach or Speedo F'd or what?

Mustang RacR94 · January 30th, 2008, 03:45 PM

exhaust leak at the manifold?

ModMustang97GT · January 30th, 2008, 08:41 PM

I do have an exhaust leak, but it is at the collector, and a different noise. I know that one. This is only when accelerating and it sounds like its coming from inside the dash, right above my left knee. Its really weird.

Trick Tuners · January 31st, 2008, 11:53 AM

Hopefully its not detonation. Sometimes mild detonation can sound like a dash rattle. Detonation Explained

stanglifemike · January 31st, 2008, 12:01 PM

bad motor mount

ModMustang97GT · January 31st, 2008, 01:02 PM

I only hear it at like 2k to 3k. and mostly just 2nd gear. I can't figure it out.

Trick Tuners · January 31st, 2008, 01:12 PM

Originally Posted by ModMustang97GT

I only hear it at like 2k to 3k. and mostly just 2nd gear. I can't figure it out.

At what throttle position? Have you eliminated your EGR?

ModMustang97GT · January 31st, 2008, 01:23 PM

No, I have an EGR. Its at probably 3/4 to full throttle.

Trick Tuners · January 31st, 2008, 01:26 PM

Try adding some octane booster and see if it goes away. Do you have a custom tune on it?

ModMustang97GT · January 31st, 2008, 01:54 PM

Yeah kinda, its a canned based on my mods. But its tuned for 91 and I run 92. Not a huge differance, but its not like I should be pushing the limits.

ModMustang97GT · February 4th, 2008, 05:36 PM

So, update. With my radio off, I can hear a squealing rubber kind of noise when I accelerate and brake. I think one of my motor mounts is either going bad or just old. Either way, i'm not sure if that would make the noise I have been hearing. Its only on the driver side of the car. It all started shortly after I got my subframe connectors installed.

mustangmanic · February 4th, 2008, 05:40 PM

i had the exact same problem... it was the header heat shield

ModMustang97GT · February 5th, 2008, 04:47 PM

Header Heat Shield? Where is that? I have LT's and a small exhaust leak? Is it a product of the leak? or what?

January 30th, 2008, 02:50 PM	#1
ModMustang97GT Hardcore Enthusiast 1997 Mustang GT Faster than an s4 Join Date: Aug 2007 Location: Seattle, WA Posts: 1,598 iTrader: 0 reviews	Tapping behind dashboard when accelerating. So when I accelerate, above 2000 rpm I hear a tapping kind of noise that goes up with RPM. But I only notice it above 2000 rpm. And only when under load. Is my tach or Speedo F'd or what?

January 30th, 2008, 03:45 PM	#2
Mustang RacR94 MM Fanatic 03 mach 1 13.2@109 Join Date: Dec 2006 Location: Mooretownship,PA kinda close to allentown Posts: 3,041 iTrader: 0 reviews	exhaust leak at the manifold? __________________ 2003 Mach 1, 5 speed U.S. Army - 11B "And on the 8th day god created the infantry and all hell stood at attention"

January 31st, 2008, 11:53 AM	#4
Trick Tuners MM Fanatic KB'd GT Join Date: Nov 2006 Location: San Diego Posts: 4,471 iTrader: 3 reviews	Hopefully its not detonation. Sometimes mild detonation can sound like a dash rattle. Detonation Explained __________________ Check out my forums for stuff on troubleshooting, tuning, etc We teamed up with Socal Performance Racing to bring dyno tuning to San Diego. Be friends with us on FB

January 31st, 2008, 12:01 PM	#5
stanglifemike IBEATU 06 GT, 98 GT, & 93 Notch Join Date: Dec 2006 Location: Douglasville, GA Posts: 5,937 iTrader: 0 reviews	bad motor mount __________________ 98 GT: some stuff 06 GT: more stuff 93 Notch: 4 cyl at birth, now 5.0 drivetrain and stock exterior and interior= True Sleeper Paxton/Vortech Crew Member #3 FRPP's #1 Dealer Injected Engineering BMR Suspension

January 31st, 2008, 01:26 PM	#9
Trick Tuners MM Fanatic KB'd GT Join Date: Nov 2006 Location: San Diego Posts: 4,471 iTrader: 3 reviews	Try adding some octane booster and see if it goes away. Do you have a custom tune on it? __________________ Check out my forums for stuff on troubleshooting, tuning, etc We teamed up with Socal Performance Racing to bring dyno tuning to San Diego. Be friends with us on FB

January 30th, 2008, 08:41 PM	#3
ModMustang97GT Hardcore Enthusiast 1997 Mustang GT Faster than an s4 Join Date: Aug 2007 Location: Seattle, WA Posts: 1,598 iTrader: 0 reviews	I do have an exhaust leak, but it is at the collector, and a different noise. I know that one. This is only when accelerating and it sounds like its coming from inside the dash, right above my left knee. Its really weird.

January 31st, 2008, 01:02 PM	#6
ModMustang97GT Hardcore Enthusiast 1997 Mustang GT Faster than an s4 Join Date: Aug 2007 Location: Seattle, WA Posts: 1,598 iTrader: 0 reviews	I only hear it at like 2k to 3k. and mostly just 2nd gear. I can't figure it out.

January 31st, 2008, 01:23 PM	#8
ModMustang97GT Hardcore Enthusiast 1997 Mustang GT Faster than an s4 Join Date: Aug 2007 Location: Seattle, WA Posts: 1,598 iTrader: 0 reviews	No, I have an EGR. Its at probably 3/4 to full throttle.

January 31st, 2008, 01:54 PM	#10
ModMustang97GT Hardcore Enthusiast 1997 Mustang GT Faster than an s4 Join Date: Aug 2007 Location: Seattle, WA Posts: 1,598 iTrader: 0 reviews	Yeah kinda, its a canned based on my mods. But its tuned for 91 and I run 92. Not a huge differance, but its not like I should be pushing the limits.

February 4th, 2008, 05:36 PM	#11
ModMustang97GT Hardcore Enthusiast 1997 Mustang GT Faster than an s4 Join Date: Aug 2007 Location: Seattle, WA Posts: 1,598 iTrader: 0 reviews	So, update. With my radio off, I can hear a squealing rubber kind of noise when I accelerate and brake. I think one of my motor mounts is either going bad or just old. Either way, i'm not sure if that would make the noise I have been hearing. Its only on the driver side of the car. It all started shortly after I got my subframe connectors installed.

February 4th, 2008, 05:40 PM	#12
mustangmanic MM Fanatic 2002 Mustang GT 13.334 @ 106.27 w/2.01 60' Join Date: May 2007 Location: Indianapolis Posts: 3,108 iTrader: 2 reviews	i had the exact same problem... it was the header heat shield __________________

February 5th, 2008, 04:47 PM	#13
ModMustang97GT Hardcore Enthusiast 1997 Mustang GT Faster than an s4 Join Date: Aug 2007 Location: Seattle, WA Posts: 1,598 iTrader: 0 reviews	Header Heat Shield? Where is that? I have LT's and a small exhaust leak? Is it a product of the leak? or what?

Remove Advertisements Sponsored Links
Forums at Modded Mustangs Advertisement Advertisement

Threads Similar to: Tapping behind dashboard when accelerating.
Thread	Thread Starter	Forum	Replies	Last Post
Dashboard hole.....	dgt_mustang	V6 Mustangs	8	January 5th, 2008 03:20 PM
Why does my car keep accelerating?	krisp1108	V6 Mustangs	8	September 30th, 2007 02:12 AM
dashboard swap 86 to 87 to 93	86mustang	5.0 Mustangs	8	July 10th, 2007 09:44 AM
Bogging Down While Accelerating	dcraig8	5.0 Mustangs	5	October 1st, 2006 04:23 PM
06 GT Dashboard wiring harness and more	Bish	Audio/Video	2	August 17th, 2006 07:22 PM

All times are GMT -4. The time now is 06:37 PM.
Contact Us - Modded Mustangs - Privacy Statement - Top
Modded Mustangs is ©2005-2008, All Rights Reserved, And is Not Affiliated with Ford Motor Company. Forum is powered by vBulletin ©2000 - 2012, Jelsoft Ent. Ltd. & SEO by vBSEO 3.3.2 ©2009, Crawlability, Inc.