Weird problem !! EGR Valve ?

[Flobber]

When I run my truck for about 10 miles to get it warm! While driving I keep my foot steady and keep the RPM 2000, what it does , it just increase the RPM to 2200 and then go down ,and so .. by itself like the transmission is slipping ...

When I do a complete stop , it start to idle really rought and I have to hit the gas pedal to make it stop !!!

[LHMissions]

When its doing this - is it belching black smoke? Do you know?

[Flobber]

I did not notice any black smoke !!
I have an SCT flash on it ! does it disable the EGR ?

[LHMissions]

It depends on how the tune is written. I think some tunes can delete the EGR.

[Flobber]

I was told yesterday , that it could be my fuel filters that needs to be changed !! I bought the truck 14 months ago! I did not change the filters since then ! I dont even know if the owner before did it so ...

Could it be that ?

[LHMissions]

Minimally - if they havent been changed - then it would be a good idea to do so. Remember - you have 2 of them. Once under the drivers side door tucked up under the frame and the other top of the engine.

[Flobber]

what are the symptoms of bad fuel filters normally ?

I know the kit is FD-4604 !!
I will order the kit today !

[Flobber]

I found a video on youtube from a guy that have the same problem as me!
Mine is not that bad yet but does the same thing!
This video explain the problem better than trying to write the problem!

YouTube - 6.0 Powerstroke Idling Problem

[Jetmec1]

The link in the post above is exactly what my truck does. So if anyone knows the fix let me know.

[Flobber]

if an image woth a 1000 words I hope someone will be able to diagnose with this video !