tn_gt

hello, i just brought i brand new mustang gt and ive put 1000 miles on it...whenever i go over railroad tracks or something i big thumping sound comes from the rear, left rear i think...i think i know what it is but i was hoping to get some of your opinions as well...im about to put some new 20's on it but wanted to get the dealer to check it out before i did so they couldnt blame it on the wheels...your opinions would be greatly appreciated...thank you.

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FOR SALE: BRAND NEW GT FOG LIGHTS



2008 Mustang GT 5spd
Bamachips 93 Race Tune
C&L CAI
Pypes Mid-Muffler System
20" American Racing Rogue Wheels
CCFL Headlights

ski

Was this causing the noise?

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2005 Mustang GT/Manual/C&L Street CAI/Doug's 93 Race Tune

BeeStang

I had the same noise on my white coupe and was told that it was the solid axle and the suspension. I rarely heard it, and it had to be a serious bump for me to notice it. Never had the dealer check it, but was always on my mind. Again, someone told me it was the solid rear axle making the thud. I know there has been a couple of posts on this, but never followed up to see what others had found out. I'd be interested just the same. Hopefully some one will post a reply!

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2006 GT Premium, auto, C&L CAI, SCT-2, Corsa, apperance mods

Hicompression

Spare tire lug wrench?

Bmr4life

Might be a TSB for the rear, but they might have already fixed that. It was an issue on my 2005.

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SLP Crew Member
JCT II CAI & Xcal 2 from Brenspeed
Black Razors 20x9 Nitto NT555's 265/35R20

Vegasfilter

I had a similar problem when I first purchased my car....took it into dealership, and they said it was the front strut mounts...not sure if that helps, but thats the problem i encountered!

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[IMG] [/IMG]

VistaGT

Perhaps the muffler? On my car, there is play in the muffler hangers and over big bumps, they hit the body making a thumping noise. A simple check is pushing the muffler upward with some force to see if it moves/possibly makes the noise.

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06 Vista Blue GT 5-Speed
C&L CAI, Steeda Strut Tower Brace, UDPs, LCAs
Flowmaster American Thunder, Welded Pypes O/R H
FRPP 4.10s, Hurst Shifter, SCT w/ BRENSPEED Tune
Shorty Ant.

Raven27

I have an 08 GT with 4k and has always made this sound when going over big bumps. I have read about it being mufflers, but I ruled that out on mine. It is kind of funny it only seems to come from one side. I'll check the tire wrench next.

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08 Mustang GT Black 5spd
72 Buick GS Stage 1

Fullsayl

I found mine to be the spare tire FWIW. If it is under warranty and unmodded yet, take it in

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Please, respect the lives of others...Save it for the Track!

VistaGT

In this case it really doesn't matter if it's modded or not b/c of the nature of the problem. I take my car in for warranty claims with my mods on. The mods really arent the cause of noises or suspension. Now if I blew my engine[8D] you can bet those mods would be off in a second.

Either way I don't think tn_gt has mods yet.

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06 Vista Blue GT 5-Speed
C&L CAI, Steeda Strut Tower Brace, UDPs, LCAs
Flowmaster American Thunder, Welded Pypes O/R H
FRPP 4.10s, Hurst Shifter, SCT w/ BRENSPEED Tune
Shorty Ant.