Nobody has anything to add to my problem? Please Help!

 

My thoughts are that CC condensation occurs when the engine cools off during the night, and it can build up if you don't get the oil hot enough the next day to evaporate all the condensation that collects from the previous night. That's why short trips that never get the oil hot are bad.

The typical 4" to 6" H20 CC vacuum provided by the OEM CCV design vs the 4" H20 or more CC pressure due to a CCV hose running to the rear of your truck can effect the vapor pressure for the CC condensation burn off, and might be a significant factor for condensation build up if you make a lot of short trips and never get your oil very hot.

Also, having a CCV vent to the ambient air can increase condensation because as the hot CC gases cool a slight vacuum is formed, and moist ambient air is drawn into the CC through the CCV hose. I've got a CC oil temp gauge, and you have to run the engine pretty hard to get the CC oil temp above 220 F! But none of these potential condensation issues explains a coolant loss!

I would think either a leaking head gasket, injector sleeves, or cavitation pin holes would let coolant leak into the cylinders due to the residual coolant pressure when the engine is off. However with the engine running it's the other way around, and oil or combustion gases would leak into the coolant. I assume you checked for air bubbles in the coolant expansion tank with the engine running? You've noticed no oil in the coolant, which I would expect to find if you had a leaking injector sleeve. I can't think of any other ways coolant can get into the cylinders. The foaming mess in your CCV doghouse certainly suggests that something besides oil fumes and normal CC blow by gases are flowing through the steel mesh! It's probably just as well you've got a CCV mod so that all that crap isn't flowing back into your turbo!

 

Would the injector sleeve integrity be tested by a pressure test of the heads? And if so the heads were tested and had no issues, except being warped 2 thousandths. If this is not a good test of the injector sleeves then what is? Also te tops of all the pistons had what i would assume is a typical carboned look to them. If there were ever coolant in the cylinder then wouldn't those cylinders have basically been steam cleaned? Also the downpipe going into the exhaust was black, if there was coolant going through the exhaust would it have the same "steam clean" effect as the cylinders?

 

Has anyone else ever had white smoke out of the exhaust and it wasn't burning coolant? Or has anyone else had white smoke that they were pretty sure was burning coolant with no obvious sign of coolant ever being in the motor or exhaust?

 

1/2gal every 10-15 miles, how do you ever get anywhere? Have you had your cooling system pressure checked? Check it both cold and after engine warm-up. I think you have cooling problems more so than engine. Have you noticed any leaks under the truck? Have you sent oil/coolant samples to the lab to make sure there is no contamination? Just a few more things to think about. Good luck.

 

Has anyone ever taken the black box for the CCV off after switching to the CCV mod?

 

Due to the fact that my valve covers abd CCV are fuul of gunk. I am contemplating putting the CCV back to stock. I can't come up with any other solutions and could use some help.

 

You're wanting to take the CCV box off completely? I know you can remove it to clean it. I'd take the box off, clean it out with some solvent or degreasing agent and then run the CCV to the atmosphere.

 

Sorry, that is what I meant. Except I might return my CCV back to stock formation. The amount and color and type of gunk in the CCV can't be good, and it is also in the valve covers.

 

Tan "gunk" to me means water/coolant & oil are mixing somehow and ending up under your valve covers. I think hooking your CCV up will only pull whatever is causing the tan gunk to get sucked through the turbo. Tan gunk under the VCs is not normal with or without the stock CCV configuration -- fix that first then worry about what the CCV is doing.

 

i might be a little late but i got a lot white smoke out of my exhaust a while back ...didnt know what was the issue ...thought turbo so i rebuilt it wasnt the problem...someone mention loss of coolant which was not my issue aswell ....turned out the hose for my CCV mod had got pinched and was letting all the presssue back to the engine causing oil to leak past the turbo seals ending with a good puddle of oil left in my exhaust thus causing my white smoke issue....*Note that i did not have Gunk as you described in your comment. But you might want to check that out take the Dog house off clean it and check your line... i also should mention i had to remove my exhaust to remove all the excess oil left in their with a high degreaser and a pressure washer...

 

Right now the truck is at the mechanic. They want to reroute the CCV back into the turbo, and I agree that whatever is building up in the valve covers and CCV defintely should not be going through the turbo. What are some possible causes for the gunk in the valve covers? If the CCV is clogged would that be a possibility and would that lead to the build-up in both valve covers? Thanks again...

 

take an oil sample and send it in and have them check for glycol/antifreeze in the oil. The gunk is probably a build up of coolant mixed in with the oil causing a sludge type build up. also I have seen in other cases of coolant leaking into the crankcase past the liner seals.

 

As for what ever is building up under your VC .... i am not sure unless its moisture that got trapped in your hose and ran back down the dog house leading it to mix with your oil ... but i can only see that maybe happening if your hose ran up and over ur brake master cylinder... Again sorry if this does not help just going from my own experience

Oh and as for the CCV house i just rerouted to were it would not kink up again an, but still is dumped out to the atmosphere and as of then i have yet to see my white smoke problem.

 

I think if the doghouse is completely full of gunk, it would be blocking the CCV flow and could cause it to build up under the valve covers. Normally, those doghouses don't get clogged up, but that doesn't necessarily mean something is wrong with your truck. The previous owner may have used an oil too long or could have had some other issue that clogged the doghouse and nobody ever noticed it before.

Try just cleaning the doghouse first and see how things go. Take it one step at a time. It will make diagnosis much more effective to be able to see what each specific change does.