Morning Sickness??????newb question...

[Tamper84]

Well first off I do want to say that I did read the sticky about the hissing...thats where I got the morning sickness quote lol. Anyway last night on my way to work there was a hissing sound coming out from under the hood, and I wouldnt be posting this if it would stop doing it. I have read from the same sticky thats its just he cooling fan warming up. But it does it only when Im around 1600 rpms but if I burp the throttle it stops and comes back. And this morning when I was coming home it did it all the way home. No smoke, no loss of power, no lights coming on nothing. So Im assuming (I know bad to do)that its just this "morning sickness" but isnt it supposed to go away after the truck has reached operating temp? I have about a 20 mile drive to and from work and yes the truck was warmed up. And I did let the truck warm up for 5 or 6 minutes before I left the parking lot at work. If anyone can help me it would be greatly apprecaited. Whoops sorry I forgot to metion, its a 2000 F350 srw with a speed speed 4x4
Thanks,
Chris
P.S. sorry this is my first diesel and Im just a little unfamilar with all of the noises a diesel truck can make.

[kanuck15]

sounds like your EBPV is sticking on you, mine did the same thing but it would dog the truck down quite a bit

[Tamper84]

Thanks for the info! Besides unplugging it, can I take apart the EBPV and oil it?
Thanks,
Chris

[kanuck15]

no its not sticking like that, for some reason or another its shutting when it shouldnt, No one to my knowledge has ever figured out why they go bad

[ScottyP5947]

Let me ask you this... is it a hissing that sounds like it's almost in the cab and only happens when it's really cold out?

Mine does this too, but I don't have any different exhaust sound like I do when it activates in my driveway on cold mornings.

I have no idea what it is... but its never caused an issue that I can tell.

Maybe I should unplug my ebpv ? They really stick a lot or come on when they are not supposed to? I didn't know they did that?

I just got a surge issue on my truck and my truck feels faster that normal I wonder if I have had this thing sticking for awhile?? No way...
If it was a stuck/sticking ebpv, wouldn't we hear the difference in exhaust sound?

Hope this helps -
Scott