Burning oil Question
Junior User
Joined: Dec 2010
Posts: 95
Likes: 0
From: North Ga.
reality_check, so the oil in my boots is not necessarily my turbo leaking? it could be because I don't have a ccv mod? now im lost. Is this why I have been loosing oil? According to the ccv mod I read on riff raff, Im going to pull my IC and drain it and clean it along with doing the mod. Is this going to fix my issue or do I need a turbo rebuild?
Postmaster
Joined: Jan 2012
Posts: 2,693
Likes: 3
From: West of Chicago
I don't think adding snake oil will help with the turbo issue. I think you need to pull the pipe off the exhaust side of the turbo and look for oil residue or signs of leaking oil. If the fuel filter isn't black then id say turbo seal time. Mine is due as under load it will lose a small amount of oil. Adding anything but quality motor oil to the engine is not good on a 7.3, they are picky on the oil used.
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Senior User
Joined: Apr 2010
Posts: 212
Likes: 0
From: Troy, NY
ok so seeing as my fuel bowl is clean I SHOULD do the turbo rebuild? just want to know what to do. is the turbo the only other thing besides the injectors that would burn that much oil? and seeing as I might know what the answer is going to be where is the best place to purchase a rebuild kit. thanks for all the help guys I know im being a pain in the behind but I just want to figure this out as best I can before I start throwing parts at it
I didn't pull the filter itself I thought I only had to check the bowl for black. If I pull the filter and its black but the fuel outside the filter is clean are my injector o rings bad?
I didn't pull the filter itself I thought I only had to check the bowl for black. If I pull the filter and its black but the fuel outside the filter is clean are my injector o rings bad?
Junior User
Joined: Dec 2010
Posts: 95
Likes: 0
From: North Ga.
Found this in one of Tugly's sig links.
Turbo; this is a closed crank vent system, which means it pulls crank vent fumes into the inlet of the turbo. You must compare the amount of oil at the compressor inlet with the amount of oil at the compressor outlet, before condemning a turbo. Excessive blow by will be pushed out the crank vent and pulled in by the turbocharger
Turbo; this is a closed crank vent system, which means it pulls crank vent fumes into the inlet of the turbo. You must compare the amount of oil at the compressor inlet with the amount of oil at the compressor outlet, before condemning a turbo. Excessive blow by will be pushed out the crank vent and pulled in by the turbocharger
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Senior User
Joined: Apr 2010
Posts: 212
Likes: 0
From: Troy, NY
ok so I might not need a turbo rebuild if a little oil is acceptable. Im gonna pull my fuel filter tomm. at work and check if it is black. if it is then im def. gonna have to do injector O-rings correct?
Junior User
Joined: Dec 2010
Posts: 95
Likes: 0
From: North Ga.
here is the full text on oil consumption
EXCESS ENGINE OIL CONSUMPTION
1.
Bad injector o-rings, on the 94-97 oil from the leaking o-rings will return back to the fuel filter housing and the fuel will be black from oil.
2. Internal o-rings can cause excessive oil consumption and not show up as black fuel.
2.
99-03 engines don’t have a fuel return off the heads, so in the unlikely event of injector o-ring failures, the fuel will not be black from oil.
3.
Turbo; this is a closed crank vent system, which means it pulls crank vent fumes into the inlet of the turbo. You must compare the amount of oil at the compressor inlet with the amount of oil at the compressor outlet, before condemning a turbo. Excessive blow by will be pushed out the crank vent and pulled in by the turbocharger.
SURGE AT
EXCESS ENGINE OIL CONSUMPTION
1.
Bad injector o-rings, on the 94-97 oil from the leaking o-rings will return back to the fuel filter housing and the fuel will be black from oil.
2. Internal o-rings can cause excessive oil consumption and not show up as black fuel.
2.
99-03 engines don’t have a fuel return off the heads, so in the unlikely event of injector o-ring failures, the fuel will not be black from oil.
3.
Turbo; this is a closed crank vent system, which means it pulls crank vent fumes into the inlet of the turbo. You must compare the amount of oil at the compressor inlet with the amount of oil at the compressor outlet, before condemning a turbo. Excessive blow by will be pushed out the crank vent and pulled in by the turbocharger.
SURGE AT
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Senior User
Joined: Apr 2010
Posts: 212
Likes: 0
From: Troy, NY
Thanks reality_check im gonna check more into this. Now im leaning towards the injector O-rings especially if the fuel filter wont be black in my truck. and seeing as the amount of oil in the turbo isn't excessive. I will look further into this and keep ya posted 
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Senior User
Joined: Apr 2010
Posts: 212
Likes: 0
From: Troy, NY
ok so heres the update so far. I added oil to the truck to make it to the full mark on the dipstick drove it to work and it went down the dipstick about an 1/8". On my lunch I pulled the fuel filter and it was clean so from what you guys posted that rules out my injector O-rings. after work I pulled the cold side of the turbo and checked for play in the turbine. found none. I didn't have time to pull the exhaust side. But I believe I will be doing the turbo rebuild if im not mistaken. anyone have any write ups on removal of the turbo? I know riffraff has a rebuild breakdown I was just wondering about removal because I plan on doing it Sat. Does it make sense to do the turbo rebuild from what ive seen so far or should I investigate further?
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Senior User
Joined: Apr 2010
Posts: 212
Likes: 0
From: Troy, NY
hey all sorry to revive this thread but my oil problem is back. I did end up rebuilding my turbo and it seemed to go away for a little while. but it has come back with a vengeance. If I remember correctly I just put about 8qts in last month and just today I had to add 10qts. Am I looking for an injector o-ring problem this time? or could I have screwed up my turbo rebuild? << I took my time and took pics to know where things went so I am pretty sure I didn't mess it up. Im just wondering if the injector O-rings could push through that much oil in a month. thanks for the help
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Senior User
Joined: Apr 2010
Posts: 212
Likes: 0
From: Troy, NY
Tugly thank you for the link. I did the Cody test and no air came out the injector o rings it all pushed back out the hole I was blowing the air into. So now here I am smashing my head again trying to figure out wtf is burning so much oil. Just to let you know how much I drove it this weekend up the highway for a total of 138 miles only drove it Friday night and Monday to get there and back and on Tuesday today I had to put in 10 qts of oil this morning. Anyone have ideas on what to do? What to look for?
Also I just called a guy who works on them occasionally and he said it could be the head gasket(s) could this be true? I thought you would loose antifreeze before oil
Also I just called a guy who works on them occasionally and he said it could be the head gasket(s) could this be true? I thought you would loose antifreeze before oil
Last edited by jbounds; Feb 18, 2014 at 01:23 PM. Reason: Spell checker messed up
Posting Guru
Joined: May 2013
Posts: 1,199
Likes: 2
From: Oklahoma
The truck only holds 15 quarts with a new filter. If you put 10qts in, the truck should have stopped running long before you got to the 10qrt mark.
It is my understanding that you get to the 6-7 qrt low mark, the truck will kill over as to not cause damage, you seem to be running it almost dry.
I feel for your, I've been chasing this rabbit myself since early Fall. I can't figure out the issue, but my oil, albeit much less, is being consumed. I can't give you any help as I still can't figure out my issue and I've done lots of the work you are suggesting.
It is my understanding that you get to the 6-7 qrt low mark, the truck will kill over as to not cause damage, you seem to be running it almost dry.
I feel for your, I've been chasing this rabbit myself since early Fall. I can't figure out the issue, but my oil, albeit much less, is being consumed. I can't give you any help as I still can't figure out my issue and I've done lots of the work you are suggesting.
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Senior User
Joined: Apr 2010
Posts: 212
Likes: 0
From: Troy, NY
No there is no smoke coming out the exhaust and yes I have put 10 qts in it before I just carry oil in my truck just in case. Thanks for your input and if you figure out yours before mine let me know please