Loud noise from back of car
Thread Starter
Teching In
Joined: Jul 2005
Posts: 48
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From: Andover, MN
Loud noise from back of car Today I went to go see dukes of hazard. and when i was pulling out of the parking lot this loud scraping/grinding/loud as hell noise comming from the back of my car. I get out to look at it thinking that my flowmaster exauset is loose. not the case. It doesent make the sound then it is in nutral. it is a m6. it makes this noise when i am in motion. i dont know what it is. it is a 2002 ls1 m6. it has only a a after market flowmaster exhaust. any advise please help!
Thread Starter
Teching In
Joined: Jul 2005
Posts: 48
Likes: 0
From: Andover, MN
Ok. I had a friend come over to take a look at it. we took it out and had no problems. i was pissed. He thinks because i had a full car that maybe the muffler was bumping. i dont know. it sounds like the sound is comming from directly in the middle of the trunk. I dont know what to do. No I havent launched the car at all. i have raced it a cupple time on the street but i never "launched" it because i know how bad it is unless you have the equiptment to do it right.
TECH Regular
Joined: Jan 2004
Posts: 416
Likes: 1
From: Minnesota
You came runnin out of the theater hood sliden, jump in though the window and went off road as you were leaving! 
You said the car was full? Gas or people? If it was full of people, did you check to see if there were any scrapes on your muffler or tips?
If it was just full of gas and no people, did you jack up the back of the car and run the car in gear to see were the noise is coming from? Rear end, driveshaft, Trans?
You said the car was full? Gas or people? If it was full of people, did you check to see if there were any scrapes on your muffler or tips?
If it was just full of gas and no people, did you jack up the back of the car and run the car in gear to see were the noise is coming from? Rear end, driveshaft, Trans?
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Teching In
Joined: Jun 2005
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From: Nitro, WV
Originally Posted by camaro_matt
dont lift the car, please, for the love of God. The car sits high enough as is, dont make the 4x4 worse. put the rear on jack stands and run it in gear to see if the noise still exists.
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Mine was making a loud noise in the rear also. It turned out to be the over the axle pipe was hitting the panhard bar. Also check the lower control arms and make sure there tight. (check in the susp. handling section for the corect torque)
My car started makeing the same kind of noise in the rear on the passenger side. It started making the noise last monday. I told my cousin to ride with me to see what it was, it went away. Today it came back LOUDER 
. I got home and asked my Dad to ride with me, and again it went away. It only makes the noise when I'm turnig or when I stopping, never when it is going staight. What can it be. For what its worth I have GMMG exhaust.
. I got home and asked my Dad to ride with me, and again it went away. It only makes the noise when I'm turnig or when I stopping, never when it is going staight. What can it be. For what its worth I have GMMG exhaust. 
11 Second Club
Joined: Jun 2005
Posts: 481
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From: Syracuse In
I"ve had the same problem forever now, It just can't be the posi imo, Been doing it to long, I was told the Wheel barring, I'm changing it this weekend to find out. Does it with right turns and hard breaking, or good bump From right side only