weird backpressure "breathing" sound

[deezelfromRofo]

please help!!!! have a weird back pressure breathing sound on my passenger side only when cold out and only if i dont plug in during the day at work. It actually sounds like the truck is taking a deep breath and when I throttle it the back pressure leaves through exhaust. I do have an intercooler set up could that be causing problem? All of my hoses are tight. In the morning after plugging in over night no weird breathing problem. It sounds like some thing is stuck. IT's driving me nuts!!!!!!! I also notice that a puff of smoke comes out with release of pressure. It usually happens aroun 1500 rpms. Like I said the breathing sound releases when Ithrottle it a little. Any ideas would be much appreciated. I know I am in excellent hands here. Thanks

[19558077]

its the exhaust back pressure device, the noise will go away when the operating temprature is met..

[deezelfromRofo]

Does that mean my device is bad? thanks for the reply

[MacDougall]

No its doing what its suppose to do its the exhaust back pressure valve closing, I'm pretty sure it is suppose to warm the engine up faster so that it runs better.

[GM Duraturd]

Everything is fine, thats what it is supposted to do. Its really annoying if you ask me.

[TDIPowerstroke]

mine does the same thing just for a few seconds, but it stops on its own.

[sevenpointthree]

ever since i put stacks in it mine is always doing it unless i'm on the freeway

[OneBigDoofus]

If you think the noise is excessive then you bedder go out and check the 10 mm bolt's on the turbo housing.

[highland512]

EBPV question

Look at picture in this thread You need to unplug the EPR censor and it will quit doing this.

[deezelfromRofo]

you were right on the money. unplugged it and hasn't done it since. thanks a sh*t load dude.