Exhaust chugging

cmb921 · May 20, 2015

Powerstroke Man 6.4 said:
Check for codes with the SCT.

Checked the SCT and Edge, no codes

UNBROKEN · May 20, 2015

It's the vanes in the turbo cycling. They all do it you can just hear it more with a deleted exhaust. Mine sounds like a big block with a big cam when I start it.

BuiltPowerStrokeTough · May 20, 2015

cmb921 said:
The EGR is shut off thanks to the programming but like I said, not deleted yet

The programming may shut it off, but like my H&S, they require you to physically unplug the electrical harness from the EGR valve itself. It can cause weird things to happen if not. Might want to try that and see if theres any change. Also, it is normal for the vanes to cycle on the VGT which will change the pitch of the turbo for a few seconds at a time. One second youll hear straight turbo, the next it will go back to a normal rumble.

UpstateDieselGuy · May 20, 2015

I'm in a '15 and I didn't have to unplug anything. It is likely the cycling of the vanes in the turbo as previously stated.

cmb921 · May 20, 2015

leland88 said:
Post a video of it??

Sent from my SM-G900W8 using Tapatalk

How do I post a video? Tried with a video from my phone and didn't work. so I emailed it to myself and tried from a computer but it keeps saving as a .mov so it wont take it

SDS97_7.3 · May 20, 2015

cmb921 said:
How do I post a video? Tried with a video from my phone and didn't work. so I emailed it to myself and tried from a computer but it keeps saving as a .mov so it wont take it

Can you load it to photo bucket or youtube

cmb921 · May 20, 2015

https://www.youtube.com/watch?v=gEg6n_SZU94&feature=youtu.be

https://www.youtube.com/watch?v=c6XU-JsHLYk&feature=youtu.be

cmb921 · May 20, 2015

SDS97_7.3 said:
Can you load it to photo bucket or youtube

I think I just got it to work through Youtube
The first video is normal, the second has the different exhaust noise with a different idle that it only does when the truck is already warm.

Vengeance · May 20, 2015

Turbo vanes cycling, but it is doing it quite a bit.

cmb921 · May 20, 2015

UNBROKEN said:
It's the vanes in the turbo cycling. They all do it you can just hear it more with a deleted exhaust. Mine sounds like a big block with a big cam when I start it.

https://www.youtube.com/watch?v=gEg6...ature=youtu.be

https://www.youtube.com/watch?v=c6XU...ature=youtu.be

UNBROKEN is that what yours sounds like? the first video versus the second. I was literally almost going to say the same thing is that I thought it sounded like it was cammed out but it it will only do that when its warm. Idk if that's normal or if that valve is opening and closing when it shouldn't

cmb921 · May 20, 2015

Vengeance said:
Turbo vanes cycling, but it is doing it quite a bit.

Is that normal for it to cycle like that?

higherlife · May 20, 2015

mine sounds like your "cold start" video every time i start the truck, cold or warmed up. i dont think your "warmed up" is right. something seems off that it would keep cycling

cmb921 · May 20, 2015

higherlife said:
mine sounds like your "cold start" video every time i start the truck, cold or warmed up. i dont think your "warmed up" is right. something seems off that it would keep cycling

My friends said the exact same thing to me that theirs neverrrrr sounds like that. that's why I'm a little concerned now bc mine does this all the time if it's already warmed up