WHAT'S THE DAMAGE? - 5.3L LS - LOW OIL PRESSURE - DOD DELETE - PART 1 - UTX
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Published 2022-02-11
In this video, we tear the LC9 down to check for damage from the lack of oil, and to decide if it can be saved. Fortunately, it looks like we're just in time and there's just some wear on the cam bearings. We dropped the engine block and crankshaft off at the machine shop, and hopefully we can install some new bearings and piston rings, and this Chevy will be back on the road. Stay tuned for PART 2, where we'll reassemble the motor and delete the DOD for good!
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All Comments (21)
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It was definitely hard to see, at least for me, the wiping of the cam bearings, thanks for slowing down and cleaning it up and using the different lighting. ☺️
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This was very informative video on the DOD delete looking forward to seeing the next video on this.
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thanks for the video Jerry
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I have had to replace so many of those damn dod lifters. I usually just convince the customer to let me turn it off with hp tuners. Then if they sell the truck or something else it can be turned back on if needed. Good video.
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Great video!,thanks for sharing!
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Thanks for sharing this teardown. There's a sort of satisfying feeling when you find something broken. A force that can't be stopped.(Juggernaut) Humm. I guess 🤔 I did once get a free snap on sticker. Enjoyed the video and the game of fetch. Stay well friends.
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Nice job
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Great information. You could put that DOD cam on your wall with the word "NO".
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Vlom is what they called the afm valley plate, variable lifter oil manifold. I think you mispoke a few times in the video, the lifter cant of course lift up off the cam, theres a locking mechanism in the lifter so when unlocked the spring absorbs the lifting action from the lobe and the valve on the dod cylinders stays closed, so the lifter still moves, when they fail the ussually collapse further than designed and get stuck, easy to check by removing valve cover and checking for floppy rocker arms. Great tear down video and good explanations other wise
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Hoping to scoop up one of these in a 6.0 variety (low oil pressure), thanks for posting!
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I have the same engine in my 2011 avalanche and I dread the day this occurs. Only has 69k right now and I've disabled the AFM/DOD with my handheld tuner but I've read/heard that the lifters/cam will eventually fail anyways since they're junk. My 08 avalanche got to 190k with no issues before I traded it in so we'll see
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I guarantee you it was the o ring on the oil pump pick up tube. I’ve work on enough of the to know.
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My 2011 Yukon had metal flakes in the oil when I changed it Saturday morning this one hits home a little too much 🙃
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I don’t think it was the cam bearing. All the bearings looked fine. Why would you lose 20 psi from having a couple thousandths more clearance, especially with a high volume oil pump? The fine glitter in the pan plus low pressure leads me to believe a failed oil pump.
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Great video! I've watched a lot of these LC9 videos as I am dealing with one right now. In your humble opinion, what is the best route rebuild or replace? This is for a 2008 Chevy Avalanche that has been very well cared for. Body is in great shape and interior is nearly flawless as it has had seat covers and dash pad on since it was new. I just cant stomach the $8500 quote to replace the engine. The only problem I have really found is that almost no one advertises that they will rebuild. Everyone, at least around here, now just wants to be a parts changer ie. Full crate swap. Any advise will be greatly appreciated!
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I've heard there are issues with the oil pump pickup tube o-ring on some ls engines. Keep up the great videos
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👍
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Where is part 2 ? So I have a question… I have a 2010 gmc sierra 5.3 it has 300k on it but has been maintained since I bought it new, my oil pressure drops to 5 psi up top and 30 psi on the bottom, had oil sensor/filter/oil pump/relief valve in oil pan/pickup tube o ring/ all replaced and still low oil pressure took it to the dealer they said it’s the main bearings and cam bearings after replacing the pressure valve in the oil pan, it seems like I’m just getting guesses at my expense What should I do ?
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Valley Lifter Oil Manifold VLOM
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How much does a job like that run