Cloud of blue smoke at start
Hi y'all I have been reading around this forum for a while now, but I have finally been bitten by the problem bug.
I just bought a 2005 F-250 with the 6.0L & 133k on it, at the used car dealer it didn't have this problem (yes, I checked to make sure the engine was cold, I even touched the exhaust manifold, it was also 70* outside). So my problem is that whenever I go to start it and it's cold (50* maybe), it'll blow a big cloud of light blue smoke. This continues for a long while, when its all warmed there is still a hint of the smoke too. It stinks really bad too, way more than my old 6.0 (no smoke at all and it made a minimal amount of that diesel smell) which I got rid of a year ago with 60k miles on the clock.
This truck starts and runs fine, even when cold. After about maybe 3-4 seconds of cranking she fires up, runs smooth and quiet (except for right when it fires, it's really loud). From what I can tell there is no loss of power, and there are no delayed shifts because its got a manual trans.
I've read some other threads similar to my problem, they all said it was injector stiction, and the owner should change the oil. But those trucks all had problems like rough running and low power.
So I've decided on a course of action for now:
I'm going to change the oil this weekend, and I will be adding a dose of Rev-X.
I'll check FICM voltage and will pull the down-pipe to check for oil coming from the turbo seal.
Another thing that I've noticed is that when completely warm it will take longer to start, yes I know it is probably the STC fitting that's causing this. But could it cause the smoke too? I am planning on things like a new oil cooler, EGR delete or BPD upgrade, blue spring, dummy plugs, the STC, and possibly studs but it isn't puking currently. I'm just hoping that it's not something more serious like rings or valve guides. Anyway the truck is completely stock to my knowledge, and if it helps y'all, it does have a Gooseneck hitch.
If I can figure it out I'll try to post a video if that will help. Thanks for any help!