Engine/Transmission (1994 - 1998) Smoking like a train

[DDennett]

Truck pushed all the oil out the exhaust and vent tube on the interstate. Problem came on suddenly as in over 2 days. Smoke is blue. Pulled the turbo, no oil on the outlet side, thick oil on the exhaust side and oil in the 4-5-6 intake runner. Turbo drain is clear. When I start the truck I'm literally creating a smoke screen. It would appear the problem is in one of the aft 3 cylinders judging from the oil in the exhaust manifold. I guess I need to a compression test. Truck only has 200,000 miles. I look forward to any input, thanks.

 

[BDaugherty]

You mostly answered your own questions. Can you pull the exhaust manifold to see which one is slobbering?

 

[DDennett]

Yeah that's pretty much where I was headed. Just figured I'd put it out there to see if I missed something, etc.

 

[Cosmo]

Pull the back three valve covers and take a peak at your valve guide seals?