Just completed the CP3 conversion on 8/10/23 Inspected the pump regulator and fortunately there was no metal contamination. Also per Fleeces recommendations I replaced the left hand fuel rail regulator and the entire injector return line system, Will say I did have some challenging moments during this project but it all worked out in the end. Even though I installed an Airdog lift pump a year ago and the instructions provided a way to remove the factory fuel filter I opted to keep the factory filter for more filtration. Truck started right up after 2 hand primes with the factory filter primer. I immediately took it out for a short test drive and it ran perfect. After making sure the coolant was topped of I to it back out for another run. After getting back home I connected the scanner and no codes popped up. Put DPF into forced regen which took about 40min. The next day I hooked up my 34ft. 5th Wheel and took it on a 10 mile drive with the scanner connected and it ran good and no codes. Very happy with the Fleece kit and would recommend this to any LML owner to do the conversion especially for the piece of mind. If you have some mechanical skills and a decent inventory of tools it can be done. I am 76yrs. old and a retired aircraft mechanic so I guess I might have had a little more background in maintenance but after watching this video twice it gave me the confidence to tackle the job.
Awesome video. Just completed the install on my 2014 LML. The accuracy and comprehensiveness of this video was a huge help. It saved me time, and gave me peace of mind, as I was able to go back to the video to recheck my work. Fantastic job guys, thanks heaps.
Very impressed with your video. No foul language and by far the most detailed video I have ever seen. Awesome job. BUT now I think it is time to sell this truck if that is what has to be done to repair it. haha
Thank you for creating such detailed video! Huge time saver! Seeing you laying over the engine bay made look up topside creepers and I bought one, man, that was a game changer. I couldn't imagine leaning over the engine for the better part of 2 days without it. Thank you again! One more thing, I ended up taking the heat shield off the backside of the turbo, the 3 bolts weren't rusted and it made getting access to the devil bolt on the high pressure crossover a little easier.
Instead of trying to get to that tricky bolt on the throttle body I took the two bracket bolts off further down 13mm by the glow plug control and wormed it out. A lot easier to get to.
Thanks for this video! I'm at 197,000 with my factory CP4. However, I've replaced most of the EPA gear. Even that doesn't bother me as much as the whole limp mode thing. First time was 130 miles out of Whotehorse, YK enroute to Alaska. Last time was on I95 in South Carolina. Both major safety issues due to the unreasonably short mile allowance.
I just purchased the latest CP3 Fleece kit for my 2016 LML in July 2023. They made a major change in how the dosing lines connect. It now has two flex lines that run from a special banjo bolt on the top of the pump that connects to what they call a cascade block. Also the temp. sensor in mounted into the cascade block that will allow it to function. Also in the instructions when done it states to do a forced regen which I don't see where that was mentioned in the older kits. I bought a scan tool just for the regen. Probably going to start this project next Monday the 31st' of July,2023. I haven't had a failure of the CP4 with 40,000 miles on the truck but this will give me peace of mind hopefully.
I live in Canada and I know I must sound cheap but God you look at what's in the kit and your like 1100$ cad really. 2800 with the pump... 1100 for a lift pump. Stuff starts to ad up quick. I'm not poor but these prices sometimes make you wonder. I called a shop to get this stuff quoted asked for "emissions upgrades " and cp3 pump . Told me over 10k. It's winter here so I'm not working outside . Thank God for channels like this showing people how to do this stuff
Great video I'm going to get a CP3 pump when I fix my TCM problem. I noticed no key way, I thought they should have a key way in the design just for an extra percussion so the gear doesn't slip. I know if its tightened properly it shouldn't.
Iv been doing mechanical work and engine building for 60 yrs...You have my deepest respect and acknowledgment of your expertise and skills...this job and engine is a mechanical nitemare....the complex design is horrible....I’m so glad I do not own one
As part of the current generation of mechanics the gm trucks with duramax engines are by far the most difficult to work on. Lots of unintuitive ways to repair anything on the truck. Most repairs are done through the inner fender well which isn’t easy and by pulling the cab. I’ve pulled more cabs on gm trucks than fords 2 fold
What a great video! This is one of the most in-depth Duramax videos I’ve ever seen. I am grateful for the knowledge. This video also has convinced me never to buy a Duramax and to go with the power stroke. As the maintenance on the power stroke seems to be 100 times easier than what this mechanic is going through on the Duramax. I wish you luck sir in your continued to work on this machine.
I changed my EGR cooler bypass valve which is a lot the same work. This is so much more complicated. Thanks for showing me this may be out of my skills. I may need to have someone do this to my truck.
Hey Jim I have a code for EGR bypass now as well on my 2011 . How is the job to do ? Any videos that you know of to follow how it’s done or any tips . Thanks
Real nice video. Thank you. I'm proud to say that I made through the whole video without needing to stop and take some advil. My back was definitely tightening up at times with you reaching way across and all stretched out, but I kept breathing made it through.
Well this video accomplished two things.. I can now do this repair on this particular Engine and Year Model and it reassures me to NEVER buy a General Motors Truck ever. Thanks for both.
@@ZR1Terror Ford does not use a Common Rail Pump for its fuel it instead relies on Oil Pressure from a High Pressure Oil Pump sending fuel to the injectors. And its a lot easier to get to and work on than this for sure. These are also found on Cummins Engines though which I was not aware however it is WORLDS easier non the less on the Cummins Engine than a Duramax. Duramax is one of the hardest engines to work on for just about anything ive ever had the misfortune of working on. And ill admit as much as I love the Ford 7.3L there's some things on those that are a Pig to work on. Cummins is very easy to work on for most repairs just because of the inline engine design compared to the V8 design on the Ford and Chevy engines which give you tons more room to work with. Especially anything to do with the Turbo which is piss easy to work on compared to Ford or Chevy.
@@ZR1Terror They indeed are but, to be fair just about everything is expensive when it comes to Diesel Trucks. And delete service is no exception no matter what brand to be honest. Best of just not buying anything new with that junk of it if you can but, in this market thats much easier said than done for sure. Its exactly why used Trucks with hundreds of thousands of miles on them without all that shit sell for so much right now actually.
My 2011 LML has 160k on the CP4. I think it is time for a conversion. I don't think I will tackle this though. I loved the video, very professional job and Adam did a great job with the camera! Thanks
I am actually in the middle of doing the install, the only thing that i have noticed that is different, the kit i ordered through you guys, and my CP3 didn't come with that dosing line coming off of it like yours does in the video when you are swapping everything over from the CP4 to the CP3, so I am a little confused on what I should do about that, other than that, awesome video!
No diss this is a great video but they did make a mistake in saying the ballance line can not br removed with the turbo still on. I have font it several times. It's a pain in the ass but once u find the perfect position it actually comes out nicely
So the nut is not flush with the new CP3 pump. I used a ittle loctite to ensure gear doesnt slip. I know on cummins isx engine is standard procedure on none keyway tappered shafts. what your not explaining is the injector return plug that comes with the kit. Or u can explain the procedure to eliminate the stock fuel filter if you want to install a Air dog sys,
Yes the nut does not flush up completely but of the thousands of these we have sold, we haven’t had one come apart. With this truck, the plug is not used. And we explain in this video which line to use with a aftermarket lift pump that will eliminate the stock fuel filter housing.
Great video . What I find odd is the fact that GM knew there where problems with the CP4 clear back to around 2013 on those LML's but yet continued to use them instead of changing back to CP3's or redesigning one to put out the proper fuel pressure that the system was designed for with improved build quality and durability . The one your fixing is a 2016 model ,,, so all that time later and they never even tried to improve that problem . It seems to me that they didn't have the customer in mind too much on that , as that can be a very expensive repair for a customer if that CP4 fails and spreads metal shavings all through the fuel system . I think that that's pretty shitty on their part . I own a 2013 LML 6.6 V8 Turbo Duramax 3500HD Crew Cab , and I'm seriously considering swapping to CP3 on mine for preventative maintenance . Currently sitting at 90.000 miles on it right now . Thanks for the video . Nicely done !
Coincidence...... my 2013 LML is sitting at 89,XXX miles, in my shop getting ready to start the CP3 conversion tomorrow. I'm done rolling the dice on the CP4!
Highly recommend cp3 conversion asap! DO NOT WAIT!. I'm at 89,000 and decided to order my conversion kit as preventivemeasures. And guess what went out a day before the kit arrived. $1500 turned into roughly $7000 in just parts.
Thank you for this video, I’m about 1/4 way through and this is very informative. My question is I have a 2011 LML with code P140A . EGR bypass valve . Do you guys have a Video on performing this repair as well ? Looks like your right there doing this conversion. Really appreciate your help. Thanks, Heeb
We do not, however if you look at your valve the replacement is pretty straight forward. If you are going to attack this repair on your own, we suggest getting a Alldata or equivalent subscription on your truck so that you will have access to the proper diagnostic, repair procedure, and torque values.
Thank you for getting back to me so quickly. Much appreciated. I am a Technician at Mercedes Benz, so I do this stuff all day and do have access to Mitchell. Just have not done any work on Dmax . I just here that the bypass job is like 10 Hrs? I would assume doing. The conversation and the bypass at the same time would be a good time to upgrade the turbo as well. I currently tuned by Duramaxtuner all emissions intact. I was thinking S&S pump though . Would this pump be able to be tuned more then my current CP4 pump? I know the pressure will be lower but I guess the CP3 flows more . Thanks for all your information. Sorry for the lengthy reply. Heeb
Thank you for getting back to me so quickly. Much appreciated. I am a Technician at Mercedes Benz, so I do this stuff all day and do have access to Mitchell. Just have not done any work on Dmax . I just here that the bypass job is like 10 Hrs? I would assume doing. The conversation and the bypass at the same time would be a good time to upgrade the turbo as well. I currently tuned by Duramaxtuner all emissions intact. I was thinking S&S pump though . Would this pump be able to be tuned more then my current CP4 pump? I know the pressure will be lower but I guess the CP3 flows more . Thanks for all your information. Sorry for the lengthy reply. Heeb @@thoroughbreddiesel
I have a 2016 LML and lost the CP4 at 86,400 miles. GM did warranty the repairs but I'm wondering if they just replaced it like and kind and wanted to know if this bound to happen to me again? I have 134,000 miles currently and it's all still stock (including the GMC CP4 repair)
I’m half way threw your video. Since I am taking some parts off, what parts do you recommend I go ahead and change for performance? Any pipes or tubes? I don’t know much about diesels. 2014 duramax. EFI live tuned.
35:50 So.... you're saying I can't do this job with a Menards DeWalt socket set and a couple of combination wrenches? Just messing... Thanks for the vid! HUGE help.
Can you do a conversion video for the CP3 on a Jeep Wrangler?? Would love to see how it works on the Jeep that way I know what to expect when my Jeep is out of the warranty :D
Great video. Once this is in and let’s say you have a Duramaxtuner tune already how much HP can this 50 state legal CP3 pump be tuned to? What Do you recommend as far as upgrading to one of there turbos ( stealth 64 or 67) Mainly use my rig to tow our 5th wheel. About 14 k . But do like to rip it now and then as well . All emissions intact CA . Thank you
My install is coming along, but the balance line wants to rub the back of the CP3. The holes are lining up. In the video it looks like there is a line support on the back of the CP3, but there is no place to bolt one on mine. Any ideas or suggestions? I dealt with the "devil bolt" by going to the hardware store and buying one a 1/4 inch shorter. Much easier to get back in and more than enough to hold what it needs to.
First of all great in depth video. I purchased a 2016 lol and was told that a cp3 was installed. Is there a way to visually verify that it was in fact installed without having to move all of that out of the way?
You should be able to see to the top of the pump. If there is a fuel metering unit on the top (electrical unit) that you see right away, its probably a CP4. If you have questions send us pictures and we can help.
Which dash monitor will show the fuel valve propotion so i can check if my lml i just got with 180k on it doesnt blow up. I learned that if the valve is showing over 30 percent open its time for a new cp pump
Why does the return line of the high pressure rail feed into the supply line of the pump? Shouldn't that return line go back to the tank to be filtered?
Ram has a recall 2019 and up 220thousand trucks with cp4 pump waiting for them to get them in stock as of Jan 6 2022 no date yet ford and chev have same issue no recall there there getting metal shaveing in fuel system check it out
Considering myself a novice with Diesel engines, I enjoyed watching the install. Excellent work. Enthusiast was a good term to use and I agree. What would you say the maximum horsepower rating is on this conversion, before needing a lift pump?
Tuning “quality” is a very large part of what HP a stock CP3 can handle. We have seen trucks make 400HP with little pull on the rail pressure without lift pump.
I'm about to dive into my CP3 conversion. If my EGR cooler is already removed, is there any reason to remove the alternator, or alternator bracket like I've seen in other videos?
@Thoroughbred Diesel thanks. I did remove it, just a few extra minutes was worth it. For others attempting this project....remove the alternator, upper radiator hose, intercooler pipe. Don't bother with the fan, it's not in the way at all. Not sure why instructions say to remove the fan, I didn't.
Have my entire engine apart doing this. Was stupid and didn’t organize my bolts so I’ve got a large pile of bolts. Is there anyway at all you can help me find out what goes where
My LML is built for Off Road, therefore it is EGR Deleted with New Down pipe which deleted my "Dulcer" Line?? I think thats what you calling it? So where the Dulcer? Line attached to the top of the block it is just plugged off on mine. Since the CP3 comes with that Dulcer line attached does that have to be reattached or how do I handle that? I dont have the banjo washer anymore or the dulcer line that I remove from the Down pipe to the top of the block.. I have a plug where it attached to the Injector? I am asking before I have watched the full installation so maybe you address that later in your video.. if so, NEVERMIND.. lol Great video so far.. With mine being deleted it will be a lot easier than the guys working on factory assy's. Thanks for the video.
I did a turbo rebuild on my 2011 LML which if anybody has ever done that, the is another bolt at the base of the Turbo that Satan also located. That was a very daunting R&R but I just walked away from it and kept my patience and finally was able to finish the task.. was very rewarding completing that rebuild. New up pipes as well.. a lot of scratched knuckles and sore fingers when I got done but was worth it.. I feel if I can do that, this CP3 will be fairly easy.. Just need to know how to get around that Dulcing? line that he keep refering to. I capped mine off per the Delete instructions for the new Down pipe.
Have a 2016 lml that had the cp4 fail. Had a shop put on the cp3 conversion and a disaster kit. Unfortunately still having problems with starting. The shop went through it and found no problems. As soon as i drove it home which was a 10 minute drive. It did not start again and had to use starting fluid. Any ideas?
I would suspect a problem with the collection return from the injectors, or the possibly the tank wasn’t cleaned post failure and unfortunately you could have had more metal introduced into the system.
I would hope somebody changes it before it goes there. One of my subscribers had that cost him more than 10 grand. If you have a duramax 2011-2016 might want to look into doing the upgrade.
@@Mikefngarage friends truck He was on a trip 1 1/2 years ago pump failed on interstate .nearest dealership gave him a truck to use while they replaced pump ,now gets fuel pressure code and debris in lines.
I now see why people are giving up on Diesel engines That reminds me of dismantling an entire house to change a light bulb. Can today’s engineering be any worse than this? Absolutely unbelievable.
@@Vickvineager Cummins lobbyists, for example lobbied to mandate new legislation based on their DEF fluid system. They were attempting to stack the deck to make it impossible for the other Diesel engine manufacturers to meet stricter emissions standards where they’d either have to adopt the the same DEF system or figure out a way to work around the Cummins patents on such a system to meet the standards. This isn’t a liberal or political party thing whatsoever. As a matter of fact, it’s often the GOP that makes more provisions to corporate lobbyists on such matters. There’s a lot more examples of this type of lobbyists and corporate shenanigans that’s been going on for decades concerning what we then see the EPA enforce. How about that!
@@Vickvineager And if ones interested, it’s public to see what automotive and engine manufacturers spend on lobbyists alongside a short description of the topic of interest for various things. Remember when the guy who invented the Stop Saw table saw break was lobbying to attempt to force all table saw manufacturers to be mandated to use his patented invention on their future saws? Seatbelts being installed and mandatory in every modern car was similar but successfully lobbied thing back in the day. It could be argued either way for the ‘good’ in lobbying such things like all this. I’m not trying to get into that but simply just attempting to spread awareness that there’s often more than meets the eye with such things like epa regulations or legislation be it from any particular political party or government agency.
@@audimaster5000 you would have to provide proof that corporate lobbyist lobbied for tougher EPA standards. Where can this information be found, I would love to research this! Makes sense in many cases but not this one.
@Thoroughbred Diesel --- I installed my CP3 last weekend. Everything went in smooth like in your video. I put some blue locktite on the CP3 pulley nut for some peace of mind. Have you ever had any of those nuts come back off after install?? Thanks for the video, helped a lot.
@@HIghlander03304 I don't do this for a living, just work on my Duramax and a few other race cars. It was a tedious job and requires a ton of patience tho.
FYI there is a fix for the duramax. But the FORD... Nope. pump wont fit. Duramax is the best option IMO. Just do the job one time and your good for many miles. I hear same pump on dodge too cp4. gotta change it no matter what you buy unless you go earlier than 2011 or later than 2016. and on the ford.... Just would not go there myself.
@@Mikefngarage just finished my C3 From CP4 conversion , not fun , very tight spaces, had to have alot of different tools , no rush and took my time , but saved 2000.00 in labor . For what it worth what would a tow cost when our 800 miles away from home with a 30 ft toy hauler and a messed up truck that needs 10,000 dollars to fix now on top of getting me off the side of the road, or worse , out in the middle of a desert . That what made me push though to get it done . I primed the the fuel lines and it started up right away . Oh God ! how do you clean a fuel tank that has metal shavings in it . No thanks , The conversion done is better than thinking about doing all that.
Bad luck for FORD users. having to live with a cp4....how long will it last......who knows when a micron of dirt or just normal wear flips the piston sideways and ruins the fuel stystem.....FYI buy a duramax if your looking. NO fix for the ford. Pump wont fit from what i hear.
I have an LML engine and I’m getting fuel in my oil. On you tube I have seen it can be injectors and injector return lines but that’s on a LB7. I can’t find info on an LML. Do you have any suggestions. I guess I’m asking can it be the CP4 pump or is it most likely an injector problem. I’m not getting a lot of fuel in my crankcase but any is to much.
@@treighewy1462 yeah the washed out cylinder scares me. Injectors don’t scare me as much but I know nothing about these duramax engines or any Diesel engines. But I do like what I’m learning about them.
Just completed the CP3 conversion on 8/10/23 Inspected the pump regulator and fortunately there was no metal contamination. Also per Fleeces recommendations I replaced the left hand fuel rail regulator and the entire injector return line system, Will say I did have some challenging moments during this project but it all worked out in the end. Even though I installed an Airdog lift pump a year ago and the instructions provided a way to remove the factory fuel filter I opted to keep the factory filter for more filtration. Truck started right up after 2 hand primes with the factory filter primer. I immediately took it out for a short test drive and it ran perfect. After making sure the coolant was topped of I to it back out for another run. After getting back home I connected the scanner and no codes popped up. Put DPF into forced regen which took about 40min. The next day I hooked up my 34ft. 5th Wheel and took it on a 10 mile drive with the scanner connected and it ran good and no codes. Very happy with the Fleece kit and would recommend this to any LML owner to do the conversion especially for the piece of mind. If you have some mechanical skills and a decent inventory of tools it can be done. I am 76yrs. old and a retired aircraft mechanic so I guess I might have had a little more background in maintenance but after watching this video twice it gave me the confidence to tackle the job.
You're welcome and thanks for sharing! Great info and glad it worked out.
Awesome video. Just completed the install on my 2014 LML. The accuracy and comprehensiveness of this video was a huge help. It saved me time, and gave me peace of mind, as I was able to go back to the video to recheck my work. Fantastic job guys, thanks heaps.
You're welcome. Glad we could help!
This is much easier on trucks that hit bumps and some things fell off lol takes it from 8 hours to about 5 or 6
Very impressed with your video. No foul language and by far the most detailed video I have ever seen. Awesome job. BUT now I think it is time to sell this truck if that is what has to be done to repair it. haha
Thank you for creating such detailed video! Huge time saver! Seeing you laying over the engine bay made look up topside creepers and I bought one, man, that was a game changer. I couldn't imagine leaning over the engine for the better part of 2 days without it. Thank you again! One more thing, I ended up taking the heat shield off the backside of the turbo, the 3 bolts weren't rusted and it made getting access to the devil bolt on the high pressure crossover a little easier.
Glad I could help!
Instead of trying to get to that tricky bolt on the throttle body I took the two bracket bolts off further down 13mm by the glow plug control and wormed it out. A lot easier to get to.
Thanks for this video! I'm at 197,000 with my factory CP4. However, I've replaced most of the EPA gear. Even that doesn't bother me as much as the whole limp mode thing. First time was 130 miles out of Whotehorse, YK enroute to Alaska. Last time was on I95 in South Carolina. Both major safety issues due to the unreasonably short mile allowance.
You're welcome!
I just purchased the latest CP3 Fleece kit for my 2016 LML in July 2023. They made a major change in how the dosing lines connect. It now has two flex lines that run from a special banjo bolt on the top of the pump that connects to what they call a cascade block. Also the temp. sensor in mounted into the cascade block that will allow it to function. Also in the instructions when done it states to do a forced regen which I don't see where that was mentioned in the older kits. I bought a scan tool just for the regen. Probably going to start this project next Monday the 31st' of July,2023. I haven't had a failure of the CP4 with 40,000 miles on the truck but this will give me peace of mind hopefully.
Hope the install goes well.
I live in Canada and I know I must sound cheap but God you look at what's in the kit and your like 1100$ cad really. 2800 with the pump... 1100 for a lift pump. Stuff starts to ad up quick. I'm not poor but these prices sometimes make you wonder. I called a shop to get this stuff quoted asked for "emissions upgrades " and cp3 pump . Told me over 10k. It's winter here so I'm not working outside . Thank God for channels like this showing people how to do this stuff
Thanks, glad we can help.
Great video I'm going to get a CP3 pump when I fix my TCM problem. I noticed no key way, I thought they should have a key way in the design just for an extra percussion so the gear doesn't slip. I know if its tightened properly it shouldn't.
Iv been doing mechanical work and engine building for 60 yrs...You have my deepest respect and acknowledgment of your expertise and skills...this job and engine is a mechanical nitemare....the complex design is horrible....I’m so glad I do not own one
As part of the current generation of mechanics the gm trucks with duramax engines are by far the most difficult to work on. Lots of unintuitive ways to repair anything on the truck. Most repairs are done through the inner fender well which isn’t easy and by pulling the cab. I’ve pulled more cabs on gm trucks than fords 2 fold
@@MrSmoush It IS an isuzu
What a great video! This is one of the most in-depth Duramax videos I’ve ever seen. I am grateful for the knowledge. This video also has convinced me never to buy a Duramax and to go with the power stroke. As the maintenance on the power stroke seems to be 100 times easier than what this mechanic is going through on the Duramax. I wish you luck sir in your continued to work on this machine.
I disagree. The 6.7 ford has the CP4 as well. Still a V8 = cramped engine bay
I changed my EGR cooler bypass valve which is a lot the same work. This is so much more complicated. Thanks for showing me this may be out of my skills. I may need to have someone do this to my truck.
Hey Jim I have a code for EGR bypass now as well on my 2011 . How is the job to do ? Any videos that you know of to follow how it’s done or any tips .
Thanks
Just want to give a HUGE thanks to you and your team for putting this video together. This came in handy FOR SURE!
Real nice video. Thank you. I'm proud to say that I made through the whole video without needing to stop and take some advil. My back was definitely tightening up at times with you reaching way across and all stretched out, but I kept breathing made it through.
What a champ! 💪🍺
Wow! Awesome video! I wish I wasn't so far away (in Washington) as I would love to ask you guys to install this on my 2016 LML!
Well this video accomplished two things.. I can now do this repair on this particular Engine and Year Model and it reassures me to NEVER buy a General Motors Truck ever. Thanks for both.
Ford and dodge also run the cp4 pump
I think all American diesel trucks use that pump.
@@ZR1Terror Ford does not use a Common Rail Pump for its fuel it instead relies on Oil Pressure from a High Pressure Oil Pump sending fuel to the injectors. And its a lot easier to get to and work on than this for sure. These are also found on Cummins Engines though which I was not aware however it is WORLDS easier non the less on the Cummins Engine than a Duramax. Duramax is one of the hardest engines to work on for just about anything ive ever had the misfortune of working on.
And ill admit as much as I love the Ford 7.3L there's some things on those that are a Pig to work on. Cummins is very easy to work on for most repairs just because of the inline engine design compared to the V8 design on the Ford and Chevy engines which give you tons more room to work with. Especially anything to do with the Turbo which is piss easy to work on compared to Ford or Chevy.
@@Demonlord468 a friend was telling me new Duramax’ are extremely expensive to delete.
@@ZR1Terror They indeed are but, to be fair just about everything is expensive when it comes to Diesel Trucks. And delete service is no exception no matter what brand to be honest. Best of just not buying anything new with that junk of it if you can but, in this market thats much easier said than done for sure. Its exactly why used Trucks with hundreds of thousands of miles on them without all that shit sell for so much right now actually.
My 2011 LML has 160k on the CP4. I think it is time for a conversion. I don't think I will tackle this though. I loved the video, very professional job and Adam did a great job with the camera! Thanks
I am actually in the middle of doing the install, the only thing that i have noticed that is different, the kit i ordered through you guys, and my CP3 didn't come with that dosing line coming off of it like yours does in the video when you are swapping everything over from the CP4 to the CP3, so I am a little confused on what I should do about that, other than that, awesome video!
Thanks! The updated kit doesn’t use the dosing lines, and gets fuel supply from the return side. This is updated in the current instructions.
No diss this is a great video but they did make a mistake in saying the ballance line can not br removed with the turbo still on. I have font it several times. It's a pain in the ass but once u find the perfect position it actually comes out nicely
So the nut is not flush with the new CP3 pump. I used a ittle loctite to ensure gear doesnt slip. I know on cummins isx engine is standard procedure on none keyway tappered shafts.
what your not explaining is the injector return plug that comes with the kit. Or u can explain the procedure to eliminate the stock fuel filter if you want to install a Air dog sys,
Yes the nut does not flush up completely but of the thousands of these we have sold, we haven’t had one come apart. With this truck, the plug is not used. And we explain in this video which line to use with a aftermarket lift pump that will eliminate the stock fuel filter housing.
Amazing job, you are very skilled. Thank you!
Invaluable information. I now feel that I can make this conversion. Thank you.
Great video . What I find odd is the fact that GM knew there where problems with the CP4 clear back to around 2013 on those LML's but yet continued to use them instead of changing back to CP3's or redesigning one to put out the proper fuel pressure that the system was designed for with improved build quality and durability . The one your fixing is a 2016 model ,,, so all that time later and they never even tried to improve that problem . It seems to me that they didn't have the customer in mind too much on that , as that can be a very expensive repair for a customer if that CP4 fails and spreads metal shavings all through the fuel system . I think that that's pretty shitty on their part . I own a 2013 LML 6.6 V8 Turbo Duramax 3500HD Crew Cab , and I'm seriously considering swapping to CP3 on mine for preventative maintenance . Currently sitting at 90.000 miles on it right now . Thanks for the video . Nicely done !
Thank you and thanks you your insight.
Coincidence...... my 2013 LML is sitting at 89,XXX miles, in my shop getting ready to start the CP3 conversion tomorrow. I'm done rolling the dice on the CP4!
Highly recommend cp3 conversion asap! DO NOT WAIT!. I'm at 89,000 and decided to order my conversion kit as preventivemeasures. And guess what went out a day before the kit arrived. $1500 turned into roughly $7000 in just parts.
@Mike Garcia that sucks! I finished mine a couple days ago. 18 hours from start to finish, taking my time and being extremely thorough!
What are you working off of? Looks like the back off an office chair?
Time to do a cp3 conversion video for the Cummins. Should be a shorter video at least.
might be easier. is there more space?
@@Mikefngarage cp4 on a cummins is fairly unobstructed. You don’t have to remove components to get to it.
Wonderful V8 diesels. No room for anything under the hood.
best in-depth video i have found, great video. I plan on doing this in the next couple of weeks and this helped me a lot.
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Thank you for this video, I’m about 1/4 way through and this is very informative. My question is I have a 2011 LML with code P140A . EGR bypass valve . Do you guys have a Video on performing this repair as well ? Looks like your right there doing this conversion. Really appreciate your help.
Thanks,
Heeb
We do not, however if you look at your valve the replacement is pretty straight forward. If you are going to attack this repair on your own, we suggest getting a Alldata or equivalent subscription on your truck so that you will have access to the proper diagnostic, repair procedure, and torque values.
Thank you for getting back to me so quickly. Much appreciated. I am a Technician at Mercedes Benz, so I do this stuff all day and do have access to Mitchell. Just have not done any work on Dmax . I just here that the bypass job is like 10 Hrs? I would assume doing. The conversation and the bypass at the same time would be a good time to upgrade the turbo as well. I currently tuned by Duramaxtuner all emissions intact. I was thinking S&S pump though . Would this pump be able to be tuned more then my current CP4 pump? I know the pressure will be lower but I guess the CP3 flows more . Thanks for all your information. Sorry for the lengthy reply.
Heeb
Thank you for getting back to me so quickly. Much appreciated. I am a Technician at Mercedes Benz, so I do this stuff all day and do have access to Mitchell. Just have not done any work on Dmax . I just here that the bypass job is like 10 Hrs? I would assume doing. The conversation and the bypass at the same time would be a good time to upgrade the turbo as well. I currently tuned by Duramaxtuner all emissions intact. I was thinking S&S pump though . Would this pump be able to be tuned more then my current CP4 pump? I know the pressure will be lower but I guess the CP3 flows more . Thanks for all your information. Sorry for the lengthy reply. Heeb
@@thoroughbreddiesel
Just did a conversion on my 2011 and it won't run. Here to see if I can figure out why.
Give us a call 859-737-4966.
I have a 2016 LML and lost the CP4 at 86,400 miles. GM did warranty the repairs but I'm wondering if they just replaced it like and kind and wanted to know if this bound to happen to me again? I have 134,000 miles currently and it's all still stock (including the GMC CP4 repair)
How long does a cp4 last? I have 130.000 on it now i want to put the cp3 in. I have a 2015 Duramax
This looks like so much fun. 🎉🎉
I’m half way threw your video. Since I am taking some parts off, what parts do you recommend I go ahead and change for performance? Any pipes or tubes? I don’t know much about diesels. 2014 duramax. EFI live tuned.
I most definitely cannot do this. I need someone in or near Bakersfield California to do this for me. HELP!!!
Looks like it would be easier to just remove the engine!-----Is why I drive a Cummins!
Yea you’re always underneath the Cummins cause your transmission is trash
35:50 So.... you're saying I can't do this job with a Menards DeWalt socket set and a couple of combination wrenches?
Just messing... Thanks for the vid! HUGE help.
excellent job, one question! How much is the labor cost for that job?
You'll need to contact a local mechanic.
I’ve watched other videos that put the fuel temp sensor in the cp3 pump . Why didn’t you put it in the pump.
There is no location for fuel temp on the CP3 on this particular kit.
Can you do a conversion video for the CP3 on a Jeep Wrangler??
Would love to see how it works on the Jeep that way I know what to expect when my Jeep is out of the warranty :D
Great video. Once this is in and let’s say you have a Duramaxtuner tune already how much HP can this 50 state legal CP3 pump be tuned to? What Do you recommend as far as upgrading to one of there turbos ( stealth 64 or 67) Mainly use my rig to tow our 5th wheel. About 14 k . But do like to rip it now and then as well . All emissions intact CA .
Thank you
My install is coming along, but the balance line wants to rub the back of the CP3. The holes are lining up. In the video it looks like there is a line support on the back of the CP3, but there is no place to bolt one on mine. Any ideas or suggestions? I dealt with the "devil bolt" by going to the hardware store and buying one a 1/4 inch shorter. Much easier to get back in and more than enough to hold what it needs to.
First of all great in depth video. I purchased a 2016 lol and was told that a cp3 was installed. Is there a way to visually verify that it was in fact installed without having to move all of that out of the way?
You should be able to see to the top of the pump. If there is a fuel metering unit on the top (electrical unit) that you see right away, its probably a CP4. If you have questions send us pictures and we can help.
Which dash monitor will show the fuel valve propotion so i can check if my lml i just got with 180k on it doesnt blow up. I learned that if the valve is showing over 30 percent open its time for a new cp pump
Are talking about FCA duty cycle?
Why does the return line of the high pressure rail feed into the supply line of the pump? Shouldn't that return line go back to the tank to be filtered?
There aren’t any returns feeding high side?
Ram has a recall 2019 and up 220thousand trucks with cp4 pump waiting for them to get them in stock as of Jan 6 2022 no date yet ford and chev have same issue no recall there there getting metal shaveing in fuel system check it out
Wish it could be as simple as saying that this would also work for a 2020 model year 6.7 Cummins...
S and s diesel and industrial injection have cp3 conversion kits for 19 and 20 ram.
Drink every time he say dosing line, standard, balancing line...you be fucked! Lol
I was so sick of hearing dosing line by the time we finished filming.
@@thoroughbreddiesel At least you guys did a good job explaining all the steps though!
he finally took off that massive wristwatch, lol
What type of topside creeper did you use on top?
It’s a cheap Chinese one but it gets the job done.
Considering myself a novice with Diesel engines, I enjoyed watching the install. Excellent work. Enthusiast was a good term to use and I agree. What would you say the maximum horsepower rating is on this conversion, before needing a lift pump?
Tuning “quality” is a very large part of what HP a stock CP3 can handle. We have seen trucks make 400HP with little pull on the rail pressure without lift pump.
How much more difficult would it be to do this on a 6.6 in an express van? Looking to purchase a 2011.
About the same amount of time.
How have the Denso Pumps held up on the L5P’s?
So far so good! But like anything, they don’t like bad fuel.
That’s hilarious!!!
“The devil himself installed that bolt”, so “hey Adam, I want you to come over here so I can show them what he did!” 😅😂
Was the same guy that put the water pump bolt behind the harmonic balancer
Just get a disaster prevention kit, the cp4.2 on the 6.7 ford seems alot easier to access then this duramax engine
I'm about to dive into my CP3 conversion. If my EGR cooler is already removed, is there any reason to remove the alternator, or alternator bracket like I've seen in other videos?
When working with that line, I think its much easier with the alternator out of the way.
@Thoroughbred Diesel thanks. I did remove it, just a few extra minutes was worth it. For others attempting this project....remove the alternator, upper radiator hose, intercooler pipe. Don't bother with the fan, it's not in the way at all. Not sure why instructions say to remove the fan, I didn't.
Have my entire engine apart doing this. Was stupid and didn’t organize my bolts so I’ve got a large pile of bolts. Is there anyway at all you can help me find out what goes where
Give us a call and we will try to help.
@@thoroughbreddiesel got it figured out, trial and error. Thank you!
You're welcome!
Pump gear nut should have a lock washer and be torqued to 85 foot pounds
Not on the lml
Hey the pump I have doesn’t have a dosing line coming off of the pump, what do I do with the line that connects to the dosing line?
You have received the wrong kit for your application.
My LML is built for Off Road, therefore it is EGR Deleted with New Down pipe which deleted my "Dulcer" Line?? I think thats what you calling it? So where the Dulcer? Line attached to the top of the block it is just plugged off on mine. Since the CP3 comes with that Dulcer line attached does that have to be reattached or how do I handle that? I dont have the banjo washer anymore or the dulcer line that I remove from the Down pipe to the top of the block.. I have a plug where it attached to the Injector? I am asking before I have watched the full installation so maybe you address that later in your video.. if so, NEVERMIND.. lol Great video so far.. With mine being deleted it will be a lot easier than the guys working on factory assy's. Thanks for the video.
I did a turbo rebuild on my 2011 LML which if anybody has ever done that, the is another bolt at the base of the Turbo that Satan also located. That was a very daunting R&R but I just walked away from it and kept my patience and finally was able to finish the task.. was very rewarding completing that rebuild. New up pipes as well.. a lot of scratched knuckles and sore fingers when I got done but was worth it.. I feel if I can do that, this CP3 will be fairly easy.. Just need to know how to get around that Dulcing? line that he keep refering to. I capped mine off per the Delete instructions for the new Down pipe.
Dosing line which is the line running to the 9th injector. This is an emissions compliant kit that retains the 9th injector.
@@thoroughbreddiesel So is there a plug for the CP3 so you can delete that line on the Pump or is that special order?
About how long did it take you to do the kit like start to finish
Have a 2016 lml that had the cp4 fail. Had a shop put on the cp3 conversion and a disaster kit. Unfortunately still having problems with starting. The shop went through it and found no problems. As soon as i drove it home which was a 10 minute drive. It did not start again and had to use starting fluid. Any ideas?
I would suspect a problem with the collection return from the injectors, or the possibly the tank wasn’t cleaned post failure and unfortunately you could have had more metal introduced into the system.
@@thoroughbreddiesel you think maybe sucking air? Supply to pump leak with no lift pump?
How much are you selling the complete kits for ?
Give us a call 1-859-737-4966.
What would you charge to do this job. I am willing to bring it over to Ky
We only sell parts and make instructional videos. Unfortunately we no longer service customer vehicles.
And remember where that safe place is....because you can't find that banjo bolt anywhere!!!!
2021 Cummins went back to CP3 pump!
As did GM in 19 I believe.
Such a great video. Thanks a lot guys.
Our pleasure!
Very good video. Thank you very much.
Glad you liked it!
will you do my 2014 Duramax
You're welcome!
Question . Why can’t you convert to the denzo pump in the l5p?
Tuning, gearing and line conversions would be necessary. No one has tackled the conversion yet.
Do you have a video on catastrophic fail 2015 duramax
I would hope somebody changes it before it goes there. One of my subscribers had that cost him more than 10 grand. If you have a duramax 2011-2016 might want to look into doing the upgrade.
@@Mikefngarage friends truck He was on a trip 1 1/2 years ago pump failed on interstate .nearest dealership gave him a truck to use while they replaced pump ,now gets fuel pressure code and debris in lines.
I now see why people are giving up on Diesel engines
That reminds me of dismantling an entire house to change a light bulb.
Can today’s engineering be any worse than this?
Absolutely unbelievable.
You can thank the epa, dep & liberals for all this useless junk on modern diesels these days.
@@Vickvineager Cummins lobbyists, for example lobbied to mandate new legislation based on their DEF fluid system. They were attempting to stack the deck to make it impossible for the other Diesel engine manufacturers to meet stricter emissions standards where they’d either have to adopt the the same DEF system or figure out a way to work around the Cummins patents on such a system to meet the standards.
This isn’t a liberal or political party thing whatsoever. As a matter of fact, it’s often the GOP that makes more provisions to corporate lobbyists on such matters. There’s a lot more examples of this type of lobbyists and corporate shenanigans that’s been going on for decades concerning what we then see the EPA enforce. How about that!
@@Vickvineager And if ones interested, it’s public to see what automotive and engine manufacturers spend on lobbyists alongside a short description of the topic of interest for various things.
Remember when the guy who invented the Stop Saw table saw break was lobbying to attempt to force all table saw manufacturers to be mandated to use his patented invention on their future saws?
Seatbelts being installed and mandatory in every modern car was similar but successfully lobbied thing back in the day. It could be argued either way for the ‘good’ in lobbying such things like all this. I’m not trying to get into that but simply just attempting to spread awareness that there’s often more than meets the eye with such things like epa regulations or legislation be it from any particular political party or government agency.
@@audimaster5000 you would have to provide proof that corporate lobbyist lobbied for tougher EPA standards.
Where can this information be found, I would love to research this!
Makes sense in many cases but not this one.
Any not mechanical diesel is gonna be complex especially V8s, diesel is just a different animal, that CP3 pump alone is a couple grand
Do you offer a kit for Fords ? I have a 2017 6.7.
Not yet, however we do offer a CP4 system saver from S&S.
@Thoroughbred Diesel --- I installed my CP3 last weekend. Everything went in smooth like in your video. I put some blue locktite on the CP3 pulley nut for some peace of mind. Have you ever had any of those nuts come back off after install?? Thanks for the video, helped a lot.
Curious, are you a professional or shade tree mechanic? This was a great video, but some of seemed pretty daunting.
@@HIghlander03304 I don't do this for a living, just work on my Duramax and a few other race cars. It was a tedious job and requires a ton of patience tho.
@@TheJoe111599 how long did it take you?
@@aaronphillips9760 took a whole day pretty much.
Wat year truck is this video done on? And how much is this kit?
What parts can I skip removing if I babe deleted all EGR components? And do I need to drain the coolant?
We can't answer this question.
why do you need to put a cp3 on a 2016, they have the upgraded cp4 2.0
Are there Torque specs with this kit
Yes sir, all specs come with the kit instructions.
So is the SS pump installation pretty much the same thing?
So the 2008 Duramax LMM has a CP3 pump?
It was produced with a CP3 pump, yes. 01-10 Dmax had CP3, 11-17 had CP4’s, and 17.5-Current are HP4 pumps.
awesome video. I was going to look at an 11 lml sometime this week, but this changed my mind.
Glad I could help.
It seems every truck manufacturer used that CP4 all the way up to 2018 . Just seems no way around it unless you want to go with gas .
FYI there is a fix for the duramax. But the FORD... Nope. pump wont fit. Duramax is the best option IMO. Just do the job one time and your good for many miles. I hear same pump on dodge too cp4. gotta change it no matter what you buy unless you go earlier than 2011 or later than 2016. and on the ford.... Just would not go there myself.
I ended up getting a 2007.5 duramax.
@@Mikefngarage just finished my C3 From CP4 conversion , not fun , very tight spaces, had to have alot of different tools , no rush and took my time , but saved 2000.00 in labor . For what it worth what would a tow cost when our 800 miles away from home with a 30 ft toy hauler and a messed up truck that needs 10,000 dollars to fix now on top of getting me off the side of the road, or worse , out in the middle of a desert . That what made me push though to get it done . I primed the the fuel lines and it started up right away . Oh God ! how do you clean a fuel tank that has metal shavings in it . No thanks , The conversion done is better than thinking about doing all that.
Can you use a CP3 with a 6.7 power stroke
As of right now, there isn’t a cp3 conversion for the 6.7 Powerstrokes.
W in TF!!! All this just to get to a pump G WIZ!
awesome . Very very good Video
Great video as always
Appreciate that!
Bad luck for FORD users. having to live with a cp4....how long will it last......who knows when a micron of dirt or just normal wear flips the piston sideways and ruins the fuel stystem.....FYI buy a duramax if your looking. NO fix for the ford. Pump wont fit from what i hear.
What do you all charge for one of these swaps on an LML? Labor and Materials included.
We no longer service vehicles for the public, so you'll have to contact a local shop.
Thanks for the video , Its a big help !
Glad it helped!
Why did all the manufacturers drop cp3 to the 4? So many problems with the 4 why would they drop something that works?
Most of them were for Race applications. That’s why this particular kit is kinda of a big deal.
We can thank emissions nonsense for the birth of the CP4...
Cp4 more easily supports emissions standards to include a 9th injector for the DPF
So when installing the timing gear on the cp3 the nut doesn't seat down level?
If my duramax is already tuned and deleted do I buy the non emissions compliant cp3 and how do I go about calibrating it like it says on the website
You have to get updated tune revisions from where you got your tunes
2$k apx cost for this repair?
You'll need to call your local mechanic.
How many Hours of shop labor does this job call for?
20
Would this work if my lml is deleted?
Very helpful thanks
Glad it helped.
I think vehicles have become money pits, for the people, they cost enough to start with.
Avaliable for ford at all ?
I have an LML engine and I’m getting fuel in my oil. On you tube I have seen it can be injectors and injector return lines but that’s on a LB7. I can’t find info on an LML. Do you have any suggestions. I guess I’m asking can it be the CP4 pump or is it most likely an injector problem. I’m not getting a lot of fuel in my crankcase but any is to much.
Injection pump won't cause that unless it's straight blown out lol, sounds like injectors or washed out cylinder
@@treighewy1462 yeah the washed out cylinder scares me. Injectors don’t scare me as much but I know nothing about these duramax engines or any Diesel engines. But I do like what I’m learning about them.
@@Flowtester1 I own av performance in Oklahoma we are a diesel performance shop, and we deal with these all the time
@@treighewy1462 where at in Oklahoma I live in Oklahoma.
If they blow up why don't GM recall it
Not sure why.
great job!
Thanks!
Great work
Thank you! Cheers!