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#21
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#22
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You might as well just get the warranty, brand new shiny frm. Dcan works for frm and many modules.
Ista-p can't always recover the frm. Mine went bad when I was coding and I had ista to try update. If you really want ista-p mine is smaller as I ripped out a lot of the f series car junk. Aarod put a cap on where intake goes into turbo and on the rubber ccv pipe, put a glove on the dipstick and used a regulator to push 10-15 psi (into the egr racepipe, but we can thread/glue a fitting onto the turbo cap) showing the oil coming up from the dipstick. I haven't tried it yet and the video is gone, so maybe just drain your intercooler and drive normally and see if your oil level stays well. If you didn't see oil warnings before then maybe like you said, the cranking a lot could've done it... The original issue was bad fuel... How did you know it was water contamination? |
#23
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Originally I was having intermittent fuel pressure drop issues. It would go into safe mode. Replaced the pressure sensor no change. Changed the HPFP regulator and it was good for over a month then it stranded my wife with audible diesel knocking till it locked up(thought it was a leaking injectors, now I think it is this oil issue) and white smoke out the tail pipe. Had it towed home and it had fuel pressure fault codes.
First thing I did was pull the fuel pressure sensor since it’s easy to get to and I had black metallic debris. So I called it at that point as HPFP failure Ordered the parts and tore it down, fuel rail has rusty metal garbage in it, tore the HPFP down and the internals had rust on all casted surfaces Dumped the fuel filter and had more crap and water droplets in it(new filter 1 month prior) At this point I think I’m just a case of dumb luck between fuel system issue and now some sort of oil blow by issue.... |
#24
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The oil could have been a result of misfiring. If she's running smooth now and smooth running control values are good, I feel there's no issue then. Do post the numbers once you get it running well... It'll take a drive or two to get the residual crap out.
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#25
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Ok. Yeah I’ll definitively come back with my findings. We’re headed out of town till next week then working when I get back so gonna be a couple weekends before I get to look at it again. Thank you for all your advice so far!
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#26
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Ok so back at it. I removed the intercooler pipes and it is completely full of oil. Started it up without boost hoses and the oil dipstick has pressure so does the valve cover breather that connect to the turbo intake tube. Oil starts running out of the turbo outlet.
What the heck would be pressuring the crankcase? Also bottom turbo is clearly not spinning when running? Last edited by 98roush; 06-29-2019 at 04:33 PM. |
#27
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Valve cover gasket can leak boost from small ports into crankcase.
That's your fix, check fixmyvw.com for the kit. Edit: oops, Sorry reread just now, no boost hoses connected to the intake by the egr either? just open intake and you're getting this pressurized oil cap/dipstick? Valve cover leaks intake boost, which you don't have with it off at the egr/throttle. Only other thing that could pressurize is if you still have dpf, that backpressure could force into the turbo bearings exhaust side. Without dpf I don't see how that tiny back pressure could do that... Does the bottom turbo have a lot of side to side play when you touch it? If yes, the bearing could be shot. Try to spin it by hand. Let us know Last edited by robnitro; 06-29-2019 at 08:54 PM. |
#28
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Hey robnitro. Right before you responded are started another thread since it didn’t relate to the title of this one. But Bottom turbo spins freely near zero shaft play. Idk what the top turbo has for shaft play tho. I just can’t imagine the amount of pressure I’m getting in the crankcase coming through the bearings of the turbos. And Yes I have dpf
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#29
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IMO this single thread is a better place to stay....
Its not like there are a ton of BMW techs reading the title and only dropping in if the title is accurate. The hisoty of your issues is likely important... JMHO at the very least, put a link in the other thread to this one, so people can review. GL |
#30
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Ok I'll list things that can cause crankcase pressure and you can check them.
First dipstick in, loosen oil cap. It shouldn't jump out. Blow-by is normal and you will see vapour coming out. If in doubt check YouTube for Cummins blow-by check or what not. -ccv puck on valve cover remove plastic hose and see if it breathes out. Then reconnect and see if it breathes out where it goes into the intake by the turbo. - valve cover gasket can leak pressurized intake into the crank. But you said boost hoses were off - turbos but I'm not sure . maybe an oil return line is blocked? But that wouldn't cause pressurized ccv. - worst case - you have a bad ring or a cracked piston. My 01 vw tdi failed with a slight crack in the piston and yes the blow-by was bad. I sold it cheap to an enthusiast who had the garage and time to work on it. Had it not failed, I would've kept it for another 150k. It was a solid yet simple car. Maybe you can inspect through glow plug hole with an endoscope. They're cheap on amazon. If you eliminated the intake by having that hose off by the egr/throttle, I think it's either a clogged ccv (see above to check) or the piston not sealing. |
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