6.0 surging help!!!!

I'm not sure what to call it but when I idle its fine. When I get going the engine and turbo go in and out in sound and gets farther apart in high tone the faster I go. It's hard to explain. You can feel it pull you back and forth almost as if you where shifting gears and it bumps a little bit before it straightens itself out. I figured it would be carbon built up in the turbo but I don't think that's the case anymore. It's bad when cold but warm its better but still rocks you. I still have a lot of power. Any ideas or did I just confuse everyone lol.

Anyone?

Have you had your turbo cleaned?

VGT solenoid

it's more pronounced when i start the engine cooled down but it always does it when I drive.

Yes turbo has been cleaned

I guess a power flux is a good way to put it.

mine has been doing that too, its only between about 2300-2700 RPMs, under moderate acceleration. I do have vivians street tune. The weird thing is that it doesn't do it or not nearly as bad if I put the throttle to the floor up through that RPM range. I have done some research and seen a lot suggesting the VGT solenoid, its just weird that it would do it only for that RPM range

I'm gonna switch my vgt solenoid out tomorrow. Hopefully that'll fix it. I cleaned the turbo today and didn't fix it. So it could be either vgt solenoid or a icp sensor

or MAP sensor? Do you have any codes?

I'm bout to check have to go to in laws to get it.

Here's a video.
http://youtu.be/_imz9wHFPsc

No codes are bein seen. Turbo was cleaned yesterday. Still pulsating. Just got the truck and this is getting old. I just want to own a powerstroke with no issues.

VGT Solenoid

i unplugged the EBP sensor and it doesnt pulseate any more or surge. im guessing that points right at VGT solenoid? right?

I would think ebp sensor is bad. mine went out and would surge really bad when cold but straighten out when hot but you could still hear the turbo changing the veins.

it was almost like the turbo whistle would get higher and lower in pitch?

yes that's exactly what mine did when it warmed up, wouldn't surge but you could hear it in the whistle.

Vgt solenoid is what it was. Thanks guys.

Pwrcummins said:

Vgt solenoid is what it was. Thanks guys.

Click to expand...

And to think I only had to post it twice lol.