Or you could remove all cac tubing and have someone turn it over and watch for the leak.

 

I would be very interested in hearing what the OP finally finds out.

 

the fuel would have to be coming from Driver side Valve cover then wouldnt it to get sucked in the CCV and into the CAC System

That much fuel I surprised this truck didnt run away and blow itself up

there got to be some fuel delution I mean what are the Odds the injector Orings leak in a way to spray a Perfict steam of fuel into CCV Tube

 

I have to agree an extraordinary set of circumstances has to occur for this to happen at all. Actully I am surprised it could get enough air to run at all. The air fuel mix had to be way off as well. I am also surprised the air cooler didn't blow apart from back pressure.

We shall see I guess if the OP ever posts back.

 

In the OP's situation he said he got the diesel in the CAC after he did work on the engine and had reassembled. In cheezit and M-chan's examples they say they heard of it happen after engine work was done to an engine was replaced or some reassembly was done.

I guess what I'm saying is, it doesn't happen to a good engine, then a part breaks, then you get the fuel in the CAC - that isn't what is happening(?) .... instead it seems to happen when something has been touched and then is being reassembled ... which would suggest something reinstalled/reassembled incorrectly or perhaps a bad part - injector/seal/o-ring/washer???

I would love to know what it could be so we can know what to look for then if any of us are working in the area of those parts.

I have to believe the fuel gets in the CAC through the ccv vent. Which means its getting pulled from the crankcase. So the fuel is a vapor in the crankcase, then it condenses in the CAC just like a whisky still. So it's like the you are distilling the fuel from the crankcase oil.

So fuel gets in the crankcase how? - When I googled fuel in the crankcase I got a few discussions on early firing injectors (on the upstroke), faulty copper washers, need to do compression testing.

Constantly learning slowly about this engine so I'm really curious to see the outcome of this one. Of the threads I mentioned I found none really had the OP coming back to tell the community how they made out ... really frustrating

 

the CCV comes from right next to tghe injectors and when you have Boost You Have Vac there

I have had inject orings leak into the Valve area then it drains down to pan

But Im thinking if the oring leaks in the right way then its possible to get SUCKED into the CAC

 

The big thing that gets me here is no fuel dilution of the oil (OP insistes there is none) Every scenario I can run would still put some dilution fuel draining into the oil.

Our last was shooting up from the 2/4 injectors straight into the ccv. We forgot about the oil rail covering the injectors so that ain't gonna happen either.

It can suck up the mist but surely it can't get it all. Maybe we are being had LOL

 

There's the part that might not be correct. He said he pulled the dipstick and checked it and smelled it. Only way to really know would be to test some or drain it into a container.

 

There has to be some fuel delution

When my injector orings leaked thats how I caught onto it was I was MAKING OIL I drained some and Made note where the leval hit on dipstick and shure enough 2 weeks later shure enough it was back on the silver wire part not on the Black Plastic where it was 2 week earlier in middle Hash mark

I also had the Famous Bell Housing Drip & BedPlate seep during all this BUT once I reringed injectors ALL Dryed up Compleatly since then


IMO it still could be shooting out around an injector Cant think anywhere else it could come from unless there head is cracked bleeding fuel from the Fuel Rail in the head

Its a 2004 MY so he could still have the straight oil rail what would be easier to get Fuel Mist to CCV tube vs the Wavey Oil Rail.
And Lets Not Forget the Constant VACUMM at the CCV Tube and probably Little Higher Vac under Boost Might pull Fuel Mist/leak into it no matter the Oil Rail Style


Maybe we ARE BEING Had and he Sucked a Bunch of water in the intake and thought it was Diesel fuel I have heard 1 guy do this before IIRC he went threw a Deep River Crossing

 

Plus Look at Alll his Fuel System Mods





what are the Odds He is Pushing WAY More than 75psi Fuel (And Dont know it maybe bad Sender to his gauge) and Blowing Fuel Right past the Injector Rings

IIRC 75psi Fuel is all them inject orings are rated For

 

I agree with ya blade, it can suck in the mist but some still has to condense out and get in the pan I have seen that personally before. But not getting any in the pan I just can't see. To do that it would have to suck it in from a outside source and even my earlier idea was kinda far fetched lol. Altho the fuel jumper hoses are in the area of the air filter and induction ducting. But for that to work a number of unlikely events has to take place.

 

Ya do know this is gonna bug me for awhile LOL

 

Ya I ran this senereo in my head when you mentioned it


a few things would have to fail in very certain spots

I agree unlikely



I know he said no Fuel in Oil but thats Highly Unlikely

I bet there is Fuel in oil

Hell theres Fuel Everywhere LOL

 

My engine is in pretty good shape and I get fuel in my oil occasionally (short trips and idling). The only way to know for sure is a UOA.

 

Thanks for the interest.Here is a quick pic of one of the injectors. This one and the other 7 look okay. New washers and o rings in place. If I am missing something please let me know.

I have not had a time to work on the truck since I pulled the CAC. I plan and hope to get back to it tomorrow. I will post my progress as soon as I'm able. Again all observations and comments appreciated.