Hello brand new to this forum. Typically don’t join these just search them. I have 2005 6.0 that puts out plums of white smoke after a short drive or long drive for that matter. Then clears after it’s been idling for about 2 3 minutes. Puts out one big puff when accelerating then just disappears. But doesn’t start smoking right after I drive it down the road until it has been idling for about 30 seconds after the previous run. Will not continuously smoke at idle or when cold. I have thrown many parts at it. It was bulletproofed when I purchased it. Has 80k on original engine. I have replaced the turbo seals. After many other parts finally took it to the local diesel mechanic. He hooked it up to his machine and stated that all the cylinders showing 90% or better for compression. Said the computer showed number 4 injector was bad. Well I replaced that injector today with no change of white smoke. Used a Ford reman injector and the the bearing plus turbo seals from KCs. Any thoughts? I’m just lost.