Appreciate the detailed inside look of the valve cover. After replacing my driver side valve cover with a new version and adding a few drain holes (per another YT video), I no longer seem to use any oil whatsoever. Before doing this, I was using almost a quart of oil in about 6-800 miles. Highly recommend this upgrade, plus it is easy to do. Thanks again for sharing.
Actually the first cover is the updated driver side one. Typically the pass side doesn't pull as much vacuum since its metered air to the tb. Th driver side cover is the issue.
We did this on our 2005 Yukon 5.3. drilled all the holes the way you showed and the one by the PCV. and it all worked good and after a few miles we shut it off and then much later in the day we started it up and noe oil is pouring out of the gasket down on the exhaust manifold and smoking. Just when you think everything's okay.
If the valve cover gasket was old, they almost never reseal, its best to replace them whenever the cover comes off unless they're maybe a couple months old. they also seal better if the surfaces are completely dry, like brake cleaner dry.
What's the possibility of sucking oil through any of the vent holes? The vacuum venting system that GM engineers designed is very bad. The replacement valve cover with the updated vents is a better choice, but drilling the holes like in the video also would do the job. Just make sure you clean and get all the metal flaking from drilling the holes. You'll have a bigger problem than oil consumption if any of that metal get in your motor.
Definitely don't have to add new holes if you get the most updated one. My tahoe was smoking like a chimney at start up and NO it was not valve seals, they were replaced twice. After buying the $100 newest version of the valve cover with the rectangular baffle hole I no longer had oil being sucked through the pcv and into the intake. I did not change, or replace the pcv valve as my original one was the removable style. Replace the cover and try it before you drill unnecessary holes in your new parts.@@chrishemingway4491
It can yes, if the smoke is tinted blue you most definitely have a blown head gasket. If you are losing oil and have a very greasy cover. Id replace the gasket at the minimum.
It seems reasonable to assume that these engines should have been using oil from day 1 of being new. But mine never did, and only does now after 180K. I do regular oil changes. I don't see any blue smoke and my plugs are clean. Any other ideas?
Hello guys, This past weekend replaced the cover but I noticed that I had already the updated cover, my problem is little weird, no cold start smoke, no hight rpm's smoke, but when Im going down a hill just iddling when acelerate back trow bunch of smoke (blue), but after that no smoke. Untill iddle againg for like 10 seconds
Did you change the passenger side also? The pass side pickup is in the front of the cover, going downhill would put the front of the cover at the bottom and might be sucking oil from over there. If you pull the intake tube and your throttle body/intake manifold has a bunch of oil in it, you're sucking oil from the covers. If everything is dry in the intake, it's likely the piston rings or valve seals letting oil by.
Catch cans are always a good idea if you have the space. I would just leave the baffle on, clean it out, then add more drain holes. The baffle helps with sucking oil that's flinging off the rockers. It's mainly a high miles or poor oil change schedule that leads to the buildup behind it that plugs the drain holes.
Air hose, brake cleaner, or usually i flush it with a garden hose while drilling and after then let it bake in the sun at 450 degrees for 3 hours, then reinstall.
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Appreciate the detailed inside look of the valve cover. After replacing my driver side valve cover with a new version and adding a few drain holes (per another YT video), I no longer seem to use any oil whatsoever. Before doing this, I was using almost a quart of oil in about 6-800 miles. Highly recommend this upgrade, plus it is easy to do. Thanks again for sharing.
No problem 👍
Nice job! I had already heard that these driver side valve covers were an issue. But thanks for a detailed LOOK!
Actually the first cover is the updated driver side one. Typically the pass side doesn't pull as much vacuum since its metered air to the tb. Th driver side cover is the issue.
Great information man..Thanks for sharing..
We did this on our 2005 Yukon 5.3. drilled all the holes the way you showed and the one by the PCV. and it all worked good and after a few miles we shut it off and then much later in the day we started it up and noe oil is pouring out of the gasket down on the exhaust manifold and smoking. Just when you think everything's okay.
If the valve cover gasket was old, they almost never reseal, its best to replace them whenever the cover comes off unless they're maybe a couple months old. they also seal better if the surfaces are completely dry, like brake cleaner dry.
What's the possibility of sucking oil through any of the vent holes? The vacuum venting system that GM engineers designed is very bad. The replacement valve cover with the updated vents is a better choice, but drilling the holes like in the video also would do the job. Just make sure you clean and get all the metal flaking from drilling the holes. You'll have a bigger problem than oil consumption if any of that metal get in your motor.
Wow thank you.
You got it backwards the other ones are the new ones the old ones are the circle holes
You just have too add the holes to the new ones either way it’s a stupid design on GM’s fault
If it wasn't for being backwards, I'd have no direction at all.
Definitely don't have to add new holes if you get the most updated one. My tahoe was smoking like a chimney at start up and NO it was not valve seals, they were replaced twice. After buying the $100 newest version of the valve cover with the rectangular baffle hole I no longer had oil being sucked through the pcv and into the intake. I did not change, or replace the pcv valve as my original one was the removable style. Replace the cover and try it before you drill unnecessary holes in your new parts.@@chrishemingway4491
Awesome!
Will this type of oil consumption cause exhaust smoke?
It can yes, if the smoke is tinted blue you most definitely have a blown head gasket. If you are losing oil and have a very greasy cover. Id replace the gasket at the minimum.
@@ThatWisco5.3A blown head gasket will cause white out of the exhaust, not blue. Blue is oil, white is coolant.
It seems reasonable to assume that these engines should have been using oil from day 1 of being new. But mine never did, and only does now after 180K. I do regular oil changes. I don't see any blue smoke and my plugs are clean. Any other ideas?
Hello guys,
This past weekend replaced the cover but I noticed that I had already the updated cover, my problem is little weird, no cold start smoke, no hight rpm's smoke, but when Im going down a hill just iddling when acelerate back trow bunch of smoke (blue), but after that no smoke. Untill iddle againg for like 10 seconds
Did you change the passenger side also? The pass side pickup is in the front of the cover, going downhill would put the front of the cover at the bottom and might be sucking oil from over there. If you pull the intake tube and your throttle body/intake manifold has a bunch of oil in it, you're sucking oil from the covers. If everything is dry in the intake, it's likely the piston rings or valve seals letting oil by.
@@wilsworkshop I've checked that already and had not too much oil, not for that smoke
Can we just totally remove the baffle and put on a catch can?
Catch cans are always a good idea if you have the space. I would just leave the baffle on, clean it out, then add more drain holes. The baffle helps with sucking oil that's flinging off the rockers. It's mainly a high miles or poor oil change schedule that leads to the buildup behind it that plugs the drain holes.
could this also be solved with an oil catch can?
Yep, catch can would reduce the oil consumption down the intake.
How do you keep the metal shavings from staying inside the baffle? Wouldnt using an air hose thru the big hole keep them out?
Air hose, brake cleaner, or usually i flush it with a garden hose while drilling and after then let it bake in the sun at 450 degrees for 3 hours, then reinstall.
The will of God.
What years is this applicable to?
Gen 3, 1999-2007.
What if you change the valve cover already but you still have the problem?
Piston oil rings? Is your vehicle constanly smoking? Blue smoke?