2006 6.0 rough cold idle

[texasstroker]

Just bought a 2006 F-250 6.0 stroker, auto with a 148-k miles. Everthing seemed fine until the weather change yesterday. Now we are in the 40's in the morning and truck starts right up but runs rough for a few mins.... This afternoon after truck was parked all day temp was in the low 60's and it did the samething then I noticed when leaving a red light a puff of smoke coming from the exhaust. (kind of a light gray color, only did that after 2 or 3 stops)

[Norad]

I have the same issues with my truck and notice that when the truck warms up, oil temp and tranny temp above 100, that the truck quiets back down and the smoke fades away. I don't know the mechanical reason for the activity, I just tell everyone that my truck hates cold weather as much as I do. One thing that helped me was to have a clean set of fuel filters going into the winter and then the truck seems to be happier

[forddieseldoctor]

There is a reflash from ford that will fix that issue. i've done it to a few and never had an issue with them after that.

[baseballguy]

where are the fuel filter(s) located?

[Dave]

One is on top of the engine by the oil filter. The other is on the frame rail

[baseballguy]

i assume that they are an easy swap?

[Dave]

Not difficult at all. The one on the frame rail can be messy though. You will get a diesel bath if you arent careful

[baseballguy]

Originally Posted by Dave

Not difficult at all. The one on the frame rail can be messy though. You will get a diesel bath if you arent careful

something that i have been looking forward to for years!!!! hahahaha

[P3Z]

Not bad, did mine last week. Easy as changing your oil, just more of a mess.
You will need proper tools. I had to buy a 35mm socket.
Do a search on here, I found a link with photos and a how to.
The one in the frame rail will get messy so wear old clothes, have a small bucket ready to catch some diesel.

[Dave]

Originally Posted by P3Z

Not bad, did mine last week. Easy as changing your oil, just more of a mess.
You will need proper tools. I had to buy a 35mm socket.
Do a search on here, I found a link with photos and a how to.
The one in the frame rail will get messy so wear old clothes, have a small bucket ready to catch some diesel.

I thought it was a 36mm socket. I gotta go look in my toolbox