Crazy "cold" exhaust tone...

[02SOMZ]

I initially wondered if it was the fuel pump, but it's definately coming from the exhaust...

I present to you, my alien spaceship exhaust tone... WHAT is causing this? vibration frequencies??

[ame]http://www.youtube.com/watch?v=9xPN7-xU1Ng[/ame]

[KING Z28 HAWK]

Dam that's weird. I don't know what it is hopefully somebody does...

[Too Fast]

Oh My God, it's the alien space ship sounds from "The Day the Earth Stood Still!" Run for cover everyone, we are doomed.

[wildbanshee]

i dont know dude but seriously that is pretty cool...if i heard you pull up to me sounding like that not sure i want to take you on...probably got one of those warp generators....heard they kill top end!

[c5z28]

[ame]http://www.youtube.com/watch?v=HAPky6F3ByU[/ame]

Heard someones muffler who did this but only after it revved-it was a broken baffle in the muffler.

[Firehawk094]

It sounds like it stopped as soon as you closed your door as well. Well, sounds like it time to get rid of that overrated Flowmaster and go with a loudmouth!

[9t8z28]

When does it do it? Cold? Hot?
What mods?
Info, info and more info!?

[shady milkman]

id guess a muffler issue..something is loose...........

oops i see c5z28 already said that ^ what he said

[c5z28]

When does it do it? Cold? Hot?
What mods?
Info, info and more info!?

It say's cold in the title

id guess a muffler issue..something is loose...........

oops i see c5z28 already said that ^ what he said

The whoo whoo video kind of hides anything useful I might have said-although I wouldn't rule it out.

[02SOMZ]

all stock... and only on first cold startup... goes away within a minute or two after driving... yeah I noticed the frequencies changing and then when I closed the door, poof gone... will experiment later by banging doors again... LOL

[c5z28]

More than likely a hole in the exhaust somewhere and as it warms up the hole closes.

[9t8z28]

Mileage on the car?

Stock muffler?

[9t8z28]

Let the thread starter comment.

It say's cold in the title


The whoo whoo video kind of hides anything useful I might have said-although I wouldn't rule it out.

[mcnoskyimages]

I would not rule out a pin hole somewhere but it sounds mechanical. I didnt hear you shut your door but it did change after you hit the gas. To me that seems like it was going into closed loop idle. Which means my $ is on the air pump/smog system.

[10spokess]

I have this same issue in my car it freaks me out

[Too Fast]

I would not rule out a pin hole somewhere but it sounds mechanical. I didnt hear you shut your door but it did change after you hit the gas. To me that seems like it was going into closed loop idle. Which means my $ is on the air pump/smog system.

I have this same issue in my car it freaks me out

It sure could be the air pump. It only runs for a couple minutes on cold start up. Pull the air pump fuse, I believe it's under the hood, and try again. That will probably set a code, but at least it will confirm/deny the cause.

[10spokess]

It sure could be the air pump. It only runs for a couple minutes on cold start up. Pull the air pump fuse, I believe it's under the hood, and try again. That will probably set a code, but at least it will confirm/deny the cause.

The air pump was the problem how do we fix that!!! or should it just be replaced

[konigandy6]

The air pump was the problem how do we fix that!!! or should it just be replaced

Get the AIR and EGR tuned out and then just rip all of it out of your car.

[10spokess]

Get the AIR and EGR tuned out and then just rip all of it out of your car.

seriously???

[shady milkman]

seriously???

yup..that stuff is pointless