6.0L beginner (high idle mod)

[JustinOOO9]

So been working on my truck, 04 f350 and completely missed it. When i startit up aftera few miutes she jumps to above 1k rpms when just siting there...
Is this a pcm update, high idle mod, or what i fear a tune left in the truck? I boight an sctsf3 because it seems most popular butnow im little confused

Hanks im learning alot about keeping m truck in great shape

[JesseKK]

My stock 07 does this too. Its fine. They do that when its cold out

[GregsSD]

Yeah, it is normal for the truck to idle up after a few minutes in cold weather, factory programming.

If you had the high idle mod done, then the truck would idle up to 1200 rpm when you turn on the switch for it.

[topncc]

My 06 does the same. Will come back down when warmed.

[JustinOOO9]

ok awsome and thanks everyone for your imput I was little worried. I installed a dfuser coolant filter and I was very very happy after 500ish miles pulled and cut the filter was crazy clean! Im paranoid about doing a coolant flush it litteraly killed my 06f350 king ranch... think im ok now? had new oil cooler installed in 2011, and new bulletproof egr cooler like 4 months ago and coolant filter is on 2nd one.

I just cant afford another 3.5k right now gotta recover from last truck.

[JesseKK]

My 1st coolant filter was also clean. i installed it at about 63,000 or so. If ur paranoid about it, flush it. Then u will be sure ur good to go with some ELC.