any body tell me what to (and not) look for when changing my 06 libby turbo? she flat out lost power,....it did crawl home,..no cel,.just looking at it its leaking oil, gunna get elbow deep into it today

Have you pulled any codes?
Lots of things can cause the symptom you describe such as fuel supply/pressure or transmission problems. Getting the trouble codes can help narrow that down.

Also, a low or no boost problem typically causes black smoke out the exhaust.
And a blown CAC hose will cause a low boost problem.

Where is your turbo leaking oil from?
Is it from the feed line on the top?
The drain line at the bottom?
Or is it an accumulation of oily residue in the turbo and CAC hoses?

None of that immediately requires turbo replacement.
Before removing the turbo, remove the intake hose and stick your fingers in the turbo and try to push, pull, spin, and wiggle the impeller shaft. It should spin easily and with minimal side to side movement.

Turbo removal is not too hard. Best to soak the bolts in some PB Blaster before trying to loosen them.
Getting it back on can be a total pain. Mainly because of the oil drain pipe.

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U.S. Army Retired

ok its weeping between the intake and exhaust side of turbo, its got very smoky as of late noticed a couple days ago bad smoke bomb when i hit the peddle, no cels, nothing coming up, motor lacks any deal sound,going out to double check cac hoses but I'm skeptical thats it, all were pep laced 6 mo ago,............sorry just re-read this,.spellcheck,...the motor is not making that classic deasl I'm a monster sound,when i limped home it felt and sounded like total turbo lag,yet,.no heavy smoke only direct power drop noise drop too,map sensor cleaned a month ago,...

well I'm a lil vexed,.pulled hoses they were weepy on the ends, not caked liked the ones i replaced before,...cannot explain why it dumped power yesterday,felt like the motor wasn't using turbo at all, at any rate, flash forward to today,pulled apart and clean it all up now lets see if the ghost reappears ,..is there a sensor that fails that would cause this?

well the day came and went,..no probe,.im almost convinced it was starved for air,dirty filter million different questions on my mind about it

Maybe it was starved for fuel.
Like maybe its a air in fuel problem.

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U.S. Army Retired

well our fuel system is problematic so i believe m-prop valve got stuck not feeding cp3 pump (intermittently) remember ! no fuel no turbo .

well I've thought about all that,...ive had air in fuel probs that I've managed,this was totally different, can't explain it,.but it came and went,....clean up everything checked turbo,.looks great,can't find anything obvious

Nothing obvious is much better than something obvious and Expensive$$$$.

Sometimes engines just like to keep us humble...

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The fuel savings from my engine modifications should pay for those modifications in about 250,000 miles