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My 2008 Nissan titan smokes and has consumed 75 qts of oil,

Customer Question
what would cause this, i...
My 2008 Nissan titan smokes and has consumed 75 qts of oil, what would cause this, i already changed the pcv valve, replced 2 coils, new spark plugs, my catylic converter got screwed up, what causes all this damage?
Submitted: 1 year ago.Category: Nissan
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Answered in 5 minutes by:
7/21/2016
Nissan Mechanic: Jake, Nissan Technician replied 1 year ago
Jake
Jake, Nissan Technician
Category: Nissan
Satisfied Customers: 4,162
Experience: Experienced collision repair technician, Pulaski Tech graduate and DSM hobbyist.
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more than likely if your burning alot of oil, then you have blowby at the oil rings.

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Customer reply replied 1 year ago
What's blowby oil its like if i said and uaed medical terms with you after you agreed to pay, not satisfied
Customer reply replied 1 year ago
what no answer?
Nissan Mechanic: Jake, Nissan Technician replied 1 year ago
Sorry, my wife took over the PC and I had to log in on my phone.
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Nissan Mechanic: Jake, Nissan Technician replied 1 year ago
Blow-by is when the oil rings start to wear and it allows oil enter the combustion chamber and its burnt off
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Nissan Mechanic: Jake, Nissan Technician replied 1 year ago
You could also have PCV issues because of the actual valve covers that replacing the little valve won't correct, but the amount of oil consumption your talking about doesn't seem like a crankcase ventilation issue.
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Nissan Mechanic: Jake, Nissan Technician replied 1 year ago
When you replaced your spark plugs were any of them oily?
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Customer reply replied 1 year ago
cyl 6
Customer reply replied 1 year ago
valve covers are new
Nissan Mechanic: Jake, Nissan Technician replied 1 year ago

well cylinder 6 could have had a tube seal leak as well.

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Customer reply replied 1 year ago
It did this is why i replaced the valve covers
Nissan Mechanic: Jake, Nissan Technician replied 1 year ago

all you can do at this point for such excessive oil consumption is perform a proper leakdown test. which may or may not show a leak. if there is a leak then you can pinpoint what its from obviously (rings, headgasket, valve seal, etc) but at the same time you can have good compression and still have oil ring issues. So it's simply a matter of ruling out other issues beforehand is all.

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Customer reply replied 1 year ago
I can drop that one cylinder and relace the rings
Customer reply replied 1 year ago
Why would i perform a proper leakdown test if it may not be accurate or a compression test that might not show the oil ring leak?
Customer reply replied 1 year ago
Some one suggested it maybe the the valve stem seals
Nissan Mechanic: Jake, Nissan Technician replied 1 year ago
Because it WILL show if there is a valve stem, head gasket, or compression ring issue.
I was merely warning that you could have good compression but still have oil ring issues. That's all
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