Weird Surging, With Video

[maquino]

I got an 08 6.4L and sometimes starts going into a weird surge. If I put it in nuetral or park and put it back in drive, the surging stops for a while.. Anyone know what this is?

08 f250 surge - YouTube

08 f250 surge - YouTube

[reighnman]

Was it cold outside? Engine fully warmed?

Mine does this when I first start it on a cold morning, it starts surging like that then after a minute or so it gradually begins reving up to warm up (oem high idle).

[dieselkane]

Yep mine does exactly the same surging when first started in the morning. However once the engine warms up, it stops doing it.

[maquino]

No at full temp , seems to only do it then.


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[maquino]

I just was in a regen and it said " cleaning filter" whenit switch back to "drive to clean" it stopped surging.. But my other experiences of the surging it never had those messages. Also if i give it to about 2500rpm the engine sounds like it goes into double time, almost like.a ping


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[aquamans350]

I noticed this recently on mine also. It does it only after starting up on a cold engine that sat over night <40F. Weird because I don't remember noticing it that few times it sat in 20F weather. A friend of mine with the same truck complained about it a while ago too

[dieselkane]

Do those of you who have this cold surging, also notice excessive smoke at times?

[cbenn]

When it is cold outside my truck will surge and does smoke prior to getting up to operating temperatures.