Exhaust Noise?

898 Views 9 Replies 5 Participants Last post by jeffmcg, Feb 24, 2004

stealth09

Discussion Starter · Feb 20, 2004

Before I explain, I would like to say, that I did a search, and there were no resolutions towards the problems, and mine is different.

Well here it is, I used to have the normal heatshield rattle on my car since i owned it, that rattles when u let go of the gas/acceleration and it rattles between 3000rpm 3500rpm.

But the thing is, now that noise all of a sudden has left, and now when I accelerate at over half maybe 70% where the pedal is, i get a small rasping noise, it sounds like its comming from under the passenger floor, so I believe its the exhaust. It sounds like a rasping, or a ricer exhaust, its not loud but is noticable from inside the car, when acceleration. Has anyone had this problem, or any ideas?

Thanks In advanced.

Sam

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seve

· #2 · Feb 20, 2004

I had a similar problem yes. It was making a rattling noise at low RPM's so I took it to the shop and they said my catalytic converter was loose, so they put a clamp on it. Im gonna have to soon buy a new one since its rusty and stuff.

Go to the shop and get it checked out!

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rzimardi

· #3 · Feb 20, 2004

its not your heatsheild or cat converter, its the piping of your stock header that connects into the exhaust, u may have a crack in the pipe. if it is your cat then the sound would be like aluminum sheets clanging together, if its a rasp or snarl its a crack in ur headers.

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stealth09

Discussion Starter · #4 · Feb 20, 2004

sh*t, i thought so. Half a month ago i ran into a big snow boulder and it sounded nasty, And i seen water dripping from that area, so I think that may be the problem.

Thanks for the info guys, anyone else with ideas?

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stealth09

Discussion Starter · #5 · Feb 21, 2004

now when i de accelerate at 2500 to 2000 rpms i get a metal clashing sound!!!!! should i just replace the header?

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mtbbodo

· #6 · Feb 21, 2004

do you have a resonator?

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stealth09

Discussion Starter · #7 · Feb 21, 2004

Im not sure I have a stock exhaust sytem.

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stealth09

Discussion Starter · #8 · Feb 22, 2004

f**k now the piece that connects to the header the more thicker piece fell off wtf do i do now!!!!!!!!

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mtbbodo

· #9 · Feb 24, 2004

the cat?

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jeffmcg

· #10 · Feb 24, 2004

I recently replaced my exhaust with a custom cat back system. I was getting a rattle at low rpm, 2-3k. I got under the car and noticed that there was bolt that connected the cat to the body of a car (might be some sort of ground connection). It had come loose with the extra vibration so I just got it welded in place.

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