04 LB7 Using oil
I checked the oil the other day something I probably should do more often since I found that I was short 3 quarts of oil. The truck has 190,000 mi. My truck doesn't smoke, there isn't any blow by, but I need to check the intercooler line. There are also no drips that I have found and especially no oil on the ground. I have no Idea where the oil is going! Does anybody have any Ideas. I called my mechanic and he thinks an injector is filling up the oil pan but I don't think its possible because I replaced the injectors when I got the truck 3 yrs ago! Anybody know how much it would cost to fix the problem if there is oil in the intercooler line? Thanks for any advice guys!
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ok, if it was using oil then an injector would not be even close to the issue ... #1
#2 check your turbo out .. check for slop and for/aft loosness..... if nothing there , inspect underside closley for leaks/seeps...... How long has it been and is the 3 qts a regular problem ? what oil are you running ? :humm: |
check your coolant. is it milky looking? Its possible that it could be a bad oil cooler and its just going in the radiator.
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Good point .... :c:
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Well a little update on the truck..... I am using a quart about 4,000 mi... I pull a landscape trailer and drive this truck everyday. I hit about 194,000 and either the injector got stuck open or I have a mechanical failure in the #4 piston. Shop did a diagnostic test and the rate on the 4 cylinder was around 10-12 I believe. Once the 4 cylinder was shot off the chopping stopped. Still haven't found an oil leak. The coolant is not milky, there are no visible oil leaks. Now I am waiting on the truck to get into the shop to tear it apart.
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thats not enough oil to be concerned with .. most likley its because your working the engine good and hard .... A good running engine will consume a bit of oil .. 1 Qt @ 4K is more than ok ... :tu:
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I would NOT say that is a safe amount. Especially for a duramax, it's unusual.
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Originally Posted by Outlaw88
(Post 1078891)
I would NOT say that is a safe amount. Especially for a duramax, it's unusual.
It could be possible that the stuck injector washed the cylinder wall and now the wall/rings are scratched and burning oil. You could try water injection for a few thousand miles to clean up the cylinders and see it stops using oil. A cheap setup could be rigged pre-turbo with the windsheld washer pump that you could use just for this. |
^^^
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My LB7 uses a bit of oil .. never smokes runs awesome .. ? maybe we have the same issues ??? :humm:
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