I just finished this job , Thanks to your superb instructions. The job went pretty smoothly, I just cant seem to remove the electrical connections without breaking the dang on clips. I broke 3 clips but its complete and the oil pressure gauge is reading normal
Been a great time to check the value lifter oil manifold bolts tourque, and the screen hopefully helps prevent a stuck lifter , the screen will cause oil starving as it get clogged and lose bolts will cause low oil pressure at the oil towers going to the AFM/DOD lifters , should be 18 FT pounds. I've seen some that are finger tight as they are getting the lifters replaced, lol
I have a question. I have not done one of these 6.2’s yet, I’ve done plenty 5.3’s. An issue that I’m having, is Cylinder 4 is misfiring pretty bad. When I’m doing a live scan on it, or live data graph, everything is fine except for cylinder 4 is missing nonstop. So I put a new coil pack, new spark plug, new wire fresh oil and it’s still missing pretty bad. I’m not getting any codes but misfire on 4. Now when I’m doing live data I am getting a notification of a week vacuum on the manifold, but everything looks good. There’s no cracks or breaks on hoses. But I’m being told an intake manifold gasket could be bad causing it to misfire. Is this something that you’ve heard before? Should I try to change the gaskets? Good video as well, thanks in advance.
It’s a good place to start, and being plastic it’s hard to know if there is a crack somewhere. If it’s a constant misfire, I’d look at the pushrod to see if it’s slightly bent from a dod event. On this gen of engine, cylinder 1 starts on the driver side but then they switch back and forth (2 is the first on the passenger side, 3 is 2nd back on the driver side and 4 is actually the second one back on the passenger side. This is different than ford so I just want to mention it so you’re for sure looking at cyl 4, which is a dod cylinder th-cam.com/video/cx4_-FGXCVE/w-d-xo.htmlsi=VNKTRn5y_74L-XmK
@@dannyjohnsonsgarage thank you very much for your response. I appreciate that. Some other people don’t take the time to respond. Yeah I’m actually familiar with that Kris Kross pattern. That’s what I call it. That cylinder for is the left one on the passenger side when you’re facing the truck it’s the second one and that one is the one that keeps doing the misfire. Now there was a pretty loud lifter for about two weeks and put an engine treatment in it Running supreme gas and it kind of went away, which I was surprised, but it’s always kind of been hesitating at a stop sign. So once I did the complete tuneup it runs so much better but it’s still misfiring on that number four.
@@dannyjohnsonsgarage one last thing, if I was to pull the spark plugs and do a compression check on each cylinder, would that one misfiring having a different compression pressure show me anything? Or should I waste my time on doing it?
I just swapped my injector #6, put it all back together and now I’ve got a p0300 multiple cylinder misfire and when I dig into it on a computer it’s showing cylinder 4
It’s a good idea when removing the intake manifold as the seals wear over time. I only removed the intake manifold as part of doing a large project for the lifters and cam th-cam.com/video/cWayyZGNYRI/w-d-xo.htmlsi=cVIIPEkNuebu2-LV
Then it’s just a little more noise with the direct injection. Also if you leave the insulation piece with the star off. The cover is not able to go on after unless you put it back on at the same time
@ I have a 2014 gmc Denali. Online says this “If you don't put the intake manifold cover back on a GMC Sierra 1500, your engine will likely experience significant problems including: poor performance, rough idling, check engine light activation, potential for air leaks, decreased fuel efficiency, and potential engine damage due to an improper air-fuel mixture entering the combustion chambers, as the intake manifold cover is crucial for maintaining a sealed air intake system.” I’m a diy guy. Had to replace manifold due to breaking the elbow 🤦🏻♂️
It’s really hard to get to the back clips, and it may be possible to pull it out, but the way it goes down by the firewall made it almost impossible to get off without the intake manifold coming too
@ thank you. I just kept trying to search it and when I searched 2008 Cadillac Escalade it came up with your video. But like you were saying it’s similar and you make it look not as complicated as it sounds to do
I'm getting no codes but slight tick on right side, sounds like a lifter. Also I was messing around with a code reader and when I went to cylinder deactivation disable history it said "intake manifold weak vacuum".
@ it seems to be only only really cold days not sure where you are located but I’m in northern Canada and -30 is normal. But I’m thinking it’s time to change fuel filter, might be part of the problem aswell.
I just finished this job , Thanks to your superb instructions. The job went pretty smoothly, I just cant seem to remove the electrical connections without breaking the dang on clips. I broke 3 clips but its complete and the oil pressure gauge is reading normal
Danny, thank you for sharing another VALUABLE how-to video!
You bet! Glad you value the videos 👍🏼
Been a great time to check the value lifter oil manifold bolts tourque, and the screen hopefully helps prevent a stuck lifter , the screen will cause oil starving as it get clogged and lose bolts will cause low oil pressure at the oil towers going to the AFM/DOD lifters , should be 18 FT pounds. I've seen some that are finger tight as they are getting the lifters replaced, lol
I ended up deleted the dod/afm th-cam.com/video/cWayyZGNYRI/w-d-xo.htmlsi=TNdZWmUJyEC8GVGR
Good video! Well edited, very good explanations, I learned a lot and I appreciate you posting this for us to review.
I have a question. I have not done one of these 6.2’s yet, I’ve done plenty 5.3’s. An issue that I’m having, is Cylinder 4 is misfiring pretty bad. When I’m doing a live scan on it, or live data graph, everything is fine except for cylinder 4 is missing nonstop. So I put a new coil pack, new spark plug, new wire fresh oil and it’s still missing pretty bad. I’m not getting any codes but misfire on 4. Now when I’m doing live data I am getting a notification of a week vacuum on the manifold, but everything looks good. There’s no cracks or breaks on hoses. But I’m being told an intake manifold gasket could be bad causing it to misfire. Is this something that you’ve heard before? Should I try to change the gaskets? Good video as well, thanks in advance.
It’s a good place to start, and being plastic it’s hard to know if there is a crack somewhere. If it’s a constant misfire, I’d look at the pushrod to see if it’s slightly bent from a dod event. On this gen of engine, cylinder 1 starts on the driver side but then they switch back and forth (2 is the first on the passenger side, 3 is 2nd back on the driver side and 4 is actually the second one back on the passenger side. This is different than ford so I just want to mention it so you’re for sure looking at cyl 4, which is a dod cylinder th-cam.com/video/cx4_-FGXCVE/w-d-xo.htmlsi=VNKTRn5y_74L-XmK
This may help as well th-cam.com/video/cWayyZGNYRI/w-d-xo.htmlsi=f-VhAu-MJkEulL7N
Dod th-cam.com/video/gEcxI2nwwxE/w-d-xo.htmlsi=LtQNx0bEzFzT8iZO
@@dannyjohnsonsgarage thank you very much for your response. I appreciate that. Some other people don’t take the time to respond. Yeah I’m actually familiar with that Kris Kross pattern. That’s what I call it. That cylinder for is the left one on the passenger side when you’re facing the truck it’s the second one and that one is the one that keeps doing the misfire. Now there was a pretty loud lifter for about two weeks and put an engine treatment in it Running supreme gas and it kind of went away, which I was surprised, but it’s always kind of been hesitating at a stop sign. So once I did the complete tuneup it runs so much better but it’s still misfiring on that number four.
@@dannyjohnsonsgarage one last thing, if I was to pull the spark plugs and do a compression check on each cylinder, would that one misfiring having a different compression pressure show me anything? Or should I waste my time on doing it?
I just swapped my injector #6, put it all back together and now I’ve got a p0300 multiple cylinder misfire and when I dig into it on a computer it’s showing cylinder 4
One cylinder shouldn’t effect another internally, and those are on different sides of the engine. It may be from other things done during the repair
Anyone know approximately how many hours this job takes to complete
Why did you replace the seals? Were you having issue with the vehicle not running correctly?
It’s a good idea when removing the intake manifold as the seals wear over time. I only removed the intake manifold as part of doing a large project for the lifters and cam th-cam.com/video/cWayyZGNYRI/w-d-xo.htmlsi=cVIIPEkNuebu2-LV
What happens if you don’t put the intake manifold cover back on with the intake manifold?
Then it’s just a little more noise with the direct injection. Also if you leave the insulation piece with the star off. The cover is not able to go on after unless you put it back on at the same time
@ I have a 2014 gmc Denali. Online says this “If you don't put the intake manifold cover back on a GMC Sierra 1500, your engine will likely experience significant problems including: poor performance, rough idling, check engine light activation, potential for air leaks, decreased fuel efficiency, and potential engine damage due to an improper air-fuel mixture entering the combustion chambers, as the intake manifold cover is crucial for maintaining a sealed air intake system.” I’m a diy guy. Had to replace manifold due to breaking the elbow 🤦🏻♂️
Is it possible to take just the cover off? I want to try and take mine off and paint to add a bit of color in the engine bay
It’s really hard to get to the back clips, and it may be possible to pull it out, but the way it goes down by the firewall made it almost impossible to get off without the intake manifold coming too
@dannyjohnsonsgarage ok I gotcha. Thank you for the info
Great video and thank you!
Is this good for a 2008 Escalade?
Similar. You would get the idea.
@ thank you. I just kept trying to search it and when I searched 2008 Cadillac Escalade it came up with your video. But like you were saying it’s similar and you make it look not as complicated as it sounds to do
Great video
How do you know if you have a leak somewhere after?
It mays surge at idle or stall. You may also get a check engine light for the unmetered air
I'm getting no codes but slight tick on right side, sounds like a lifter. Also I was messing around with a code reader and when I went to cylinder deactivation disable history it said "intake manifold weak vacuum".
Anyone ever have a rough start / almost stalling out on a Yukon? Past few mornings I’ve experienced this, one morning it threw 2 codes p0697 & P06a3.
Have this same problem have you got it fixed??
@ it seems to be only only really cold days not sure where you are located but I’m in northern Canada and -30 is normal. But I’m thinking it’s time to change fuel filter, might be part of the problem aswell.
What year does that apply to?
2015-2020 and 2014 Silverado
@@dannyjohnsonsgarage ok great ill be starting my 2016 sub in qbout 30 min