How to removing LB7 Duramax injectors 

You're welcome and glad that tip was able to help you out! It does make it nice to have something to grab onto and especially on that back one because it is a pain! Thanks for letting me know this video was able to help you out! 🐝

Thank you and hopefully it was informative to you. You're welcome and thanks for watching and commenting!

Thank you very much!

Hopefully it went smoothly for you and my video has helpful for you. It can be a bit intimidating but take your time and keep a clean work area and it will go good. Thanks for watching and commenting!

How’d it go

Went well. Took my time about three days worth. Definitely good to take your time.

LOL thanks buddy! LOL yeah it was a big job but it was a lot of fun and I love to mechanic so it was right up my ally! Thanks friend I appreciate all of your support and I hope you have been doing well!

You're welcome and I am glad to hear that they have been helpful for you!

You're welcome and glad you liked it! 🐝

Thank you and I am glad to hear that you found it very helpful! 🐝

You're welcome and I am glad to hear that you found the video informative. Thanks for watching and commenting!

Thanks and glad you enjoyed it! Thanks for watching and commenting!

Thanks and sorry for the late reply. It is a bunch or multi colored collars that are sized to the lines in color coronation. You just take the right sized one and push it up into the fitting and it will release the internal fingers and allow you to pull on the line to remove it. Hopefully that helps!

Thank you! Hopefully you found it informative. Thanks for watching and commenting!

That is great advice and I would agree as long as money permits like you said. Thanks for your comment!

Thank you and hopefully it was helpful! 🐝

Thanks and glad you enjoyed the video! That could be a number of problems but I would say the main cause is it is not building the proper fuel pressure. I am not for sure without more info on the pickup what it might be. How many miles are on it? Thanks for watching and commenting!

Are they giving you a hard time by not having enough room or did they strip out? If it is because they are tight to get to I found that a 1/4 drive with a universal joint really helps getting to them. That's great to hear that you are finding the videos helpful! Thanks for taking your time watching and commenting!

@MeanBee392 studying up to attempt this repair, this video is incredibly helpful. Let's say the bolts against the firewall were stripped - what would you suggest to get those out?

You are very welcome and hopefully it will be helpful for you in the future! I think that it is a great idea to do a project like this with your son's for the bonding, experience and the memories that will be made lasting a life time. Having basic mechanic skills and a shop with tools this project would be very doable for you. I know it seems like a big project and can be a bit nerve racking thinking of doing it but once you start and get it finished you will be surprised how easy it ended up being. I think you would have no problem doing it and it will save you money, make memories along the way, and give you a huge sense of accomplishment. Use these video as a reference and feel free to ask me any questions and I will do my best to help you out. Hopefully that all makes sense and thanks for watching and commenting buddy! 🐝

Sorry for the late reply. Are you still needing a picture of the fuel filter head. Hopefully my video series will help you out. 🐝

That's awesome to hear that you also changer your injectors your self! Man that's a bummer that all the bolts all so tight. I had the opposite problem and over half of mine were hand tight at very best and a dealer was in mine before I was and that makes me wonder how good of a job they did... That's awesome to hear that yours is also running great. Those back bolt on the drivers side were put there by the devil him self lol! They were a real pain but I did the same thing as you did and used a universal joint to get the too. Thanks for watching and commenting! Cheers to changing our injectors our self's!

Those can be very tough to get with the limited access. I found using a ball head allen socket along with a universal joint and some extension come in very handy for them. Hopefully that helps and will aid in getting them out. You’re welcome and I am glad to hear that you like the video. Thanks!

@@MeanBee392 Update: I started on the drivers side, which I realize now is the most difficult to get the valve covers off....but I did get them both off. If I have any advice for the next guys it would be this, "Be Patient" and don't muscle your way through the valve cover removal. I am happy to be looking at 4 new injectors installed in the drivers side and already have the covers loose on the passenger side in a fraction of the time!👍

It is a very tight spot and hard to get to I used a small universal joint (wobbly) and that made it a lot easier and also going in through the inner fender well. Hopefully this help and if you have any more questions please let me know. Thanks for watching and commenting buddy and good luck!

You are very welcome and glad you enjoyed the video! They are probably stuck in the cup and will pull the cup with them I would just say use the fuel line as a handle and keep working them side to side and they will come out but it can be tough.

@@MeanBee392 yup they did finally come out with lots of elbow grease. And unfortunately they lifted the cups out some. It ended up being all good as I bought an injector cup removal tool and pulled all the cups and reloctited. The tool made it so easy that I couldn't afford not to do and risk having a leak.the truck turned out great and runs awesome. I got some smoke yet but hoping it will go away soon as the muffler burns all old excess fuel out. Otherwise I will have Lincoln Diesel in WI help me out as they are great. Love their SAC45 injectors that I installed and their Service. Again I can't Thank You enough for your video as you got me thru this job. YouDaMan😃. I'm actually going to look to see if you have any videos on turbo or injection pump removal just in case I have to do someday. Heck gonna see if yah have a head gasket one too.

Just because you would have to remove and replace or pay to have the injector lines cleaned to get back to the valves so it is a lot easier at this point to adjust them. Great question and thanks for watching and commenting! 🐝

That actually brings up another question? When going into changing the injectors the kit has the lower cover gasket the fuel line clips and orings and seal washers for the injectors. The kit doesn't include the 4 per side fuel pipes? When you say cleaning the fuel lines you mean all the lines you removed and what did you clean them with?

No it does not contain the 8 high pressure lines or the 2 return lines. The only lines that you would have to clean would be the 8 high pressure lines because that needs to be clean fuel before entering the injectors. If you are going to clean them the best way is to have them sonic cleaned bu a machine. Hopefully that makes since and if you have any more questions I will do my best to answer them for you.

Mine did have numbers on the body of the injector. Hopefully you did not get ripped of by a shop. 60K is really not that meany miles but unfortunately the VOC injector style in the LB7 do not last very long and it seems 60 to 100K is about average. The SAC style is a must in my book because they will last a lot longer. Are you replacing your injectors? If so what ones are you going with? I know if you buy them from Lincoln Diesel Specialties when you send your cores back they will check the injectors and numbers to let you know if they were all changed. They did that for me because I had the same suspicions as you are having with yours. Hopefully this is a bit helpful and if you have any other questions let me know and I will try to help you out buddy! Thanks for watching and commenting!

Not that I have heard or experienced but it could be something worth checking out if you are having problems.

I wouldn't think you would need to replace the cups but if one pulls out on the injector I would just reuse and reseal that cup or cup's. Hopefully that helps.

Lbz and up you have to but lb7 and lly it’s fine

You prolly dont give a shit but if you are stoned like me during the covid times you can stream pretty much all of the new series on instaflixxer. Have been streaming with my girlfriend for the last couple of weeks :)

@Gus Major Yup, I've been using instaflixxer for years myself :D

That's a great question! On my last set up with stock injectors and Edge tuning it would smoke black a lot and on my new set up it hardly smokes but has a lot more power and runs so much smoother. What I am saying that just because you don't see a lot of black smoke doesn't mean you pickup is int making good power or is set up right when in reality less smoke means it is running more efficient. As for running over sized injectors with your stock CP3 you will pick up power. It always best to have tuning match with your injectors and in the end it's what you are looking for to get out of your pickup. Hopefully this all makes sense and if you have any more questions please feel free to ask. Thanks for watching and commenting!

MeanBee392 So after further research I’ve realized I need to run 45% sac style injectors because of numerous reasons vs a VCO style. I just want to make sure that they will be fine with a stock CP3 and super chip programmer

That's very true and that's why I went with the SAC style they are just a much better option. They will work fine with the stock CP3 and the programming. LDS also offers a stock size SAC style now I believe but I would recommend calling them because they are very helpfully and will be able to guide you in the right direction. Ask to speak with Brent or Bob and tell them you saw my video and sent you, they are a great group of people!

MeanBee392 Fantastic. Will do !

I know this is old, but you can run stock tune with 45s to get you by, But it is best to get your truck tuned for them. Don't risk running a hotter tune meant for stock Injectors on bigger injectors. You will over fuel and potentionally destroy a piston.

That one is a pain but I just used the same quick disconnect tool and had to fiddle with it for a bit. Hopefully that is helpful and thanks for watching and commenting!

@@MeanBee392 yeah are your lines two different sizes because my tool only fits in the upper hose which is smaller diameter

Sorry I worded badly. So I used the same style but a different size because you are correct and they are two different sizes. That lover one was a huge pain though and you can always use some kind of penetrating oil in it to also help loosen it up. Hopefully that is helpful for you.

Sorry for the late reply but did you figure it out?

Yes I done a continuity test on the other side worked out well thanks for the reply though enjoyed your video

You are very welcome and I am really glad to hear that you found this video helpful and informative! That is a tough question to answer because it really depends on where you are sitting financially. If doing the full set is going to strap you for money then I would just do the sensor and then start saving up. If you are in the position to be able to afford the injectors then I would highly recommend that and would only recommend doing the SAC style then you will no longer have the stock LB7 injector problems. Hopefully that helps out a bit and thank you so much for your support subscribing, watching and commenting I really appreciate it! 🐝

@@MeanBee392 Thanks again. I'm in the job now, and decided on just the sensors. (Both on the driver's side.) Having a b*tch of a time with the fuel lines! One I got, the other is currently eating my lunch. I just keep thinking if you can do it, so can I!

Haha yes they are. The 2004.5 and up Duramax are a lot easier because you don't have to pull the valve covers on them but unfortunately mine is not like that lol.

lb7s arent that bad, theres just alot of shit in the way

I would bet it would be the seals on your injector return line under the valve covers.

Thanks! I need to get to making more videos on it.

Such a great song!

Thank you! Glad you enjoyed it and hopefully you found it informative. Thanks for watching and commenting!

Yes this is and LB7 and no you do not have to pull the heads to replace the injectors.

LOL its ok I am the same way but if you do this job just take your time so you don't have to to do it twice.

It's really not that bad of a job at all.

Nothing wrong with that, they are great engines!

Yes thankfully I only needed to do the injectors. Sorry to hear that you are having an issue after an engine rebuild. Have you been able to figure it out what the problem is?

I found the issue. Air between the cp3 and fuel rail.

You are killing it buddy!

Yeah it is a bit of a job but if you have some tools and some mechanical knowledge I would recommend doing it your self. 🐝

Haha they told me 3000 grand in labor.

Trying to get as much info out to everyone as possible.

Yeah there needs to be a "how it's made" style mechanic channel or something 😂