EBPV ?

[southern7.3]

Is it possible for the ebpv on my early 99 250 to be opening and closing as I drive down the road? Until the truck warms up totally I can hear the turbo sound as if it spools up and then all of that air noise. Makes the same sound you can hear on cold mornings and the truck idles itself up. There is no power loss or rough running when this happens. Its just kind of a annoying noise. Thanks

Sam

[pipelayerjdh]

You are probably right, but to make sure, you can unplug the wires going to the EBPV and make sure it doesn't make the noise.

[southern7.3]

will do. I just read up on someone else who I believe was having the same problem. Its always went away after I got into the truck and started driving until this winter. But of course this is the first winter the truck has had a intake zoodad and no muffler Ill try it and see what happens

[zooterboy]

Mine does it too. It seems to happen more on colder mornings. After work when it's a little warmer out It don't do it. We went to leave the other morning and my daughter walked past the exhaust and it started to hiss at her, it scared the crap out of her, I laughed (she got mad) I told her it's just my truck warming up-- she said "does that mean the heater will work faster?" She is 6.......

[southern7.3]

LOL I like the sound of it when it idles up in the morning and starts the hissing I just dont really like it when im driving down the road. It does keep me awake though lol

[powerstrokindad]

Sam, my fathers 2000 PSD was kinda doin the same thing recently and he thought the ebpv was the culprit. turns out the wg was blowing open and close while going down the road. you can try to tighten the wg actuator rod and see of that helps.