LML Duramax Diesel Tuning - 5 Questions & Answers
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- เผยแพร่เมื่อ 13 มิ.ย. 2024
- Here are the top questions about Duramaxtuner.COM's engine and transmission calibrations for the LML.
Will tuning improve mileage?
Do I need Transmission Control Module (TCM) tuning?
Do you have LML Switchable Tunes (LSP)?
Should I delete my emissions equipment?
Will tuning void my warranty?
More questions? 815-568-7920
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duramaxtuner.com/lml/tuning/lm...\
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![More POWER With A DPF Fitted? | Gale Banks On Emissions [TECH TALK]](/img/n.gif)
Deleting is for dramatic reliability increases, not necessarily for horsepower. I highly recommend eliminating the SVR and DEF while installing and aftermarket exhaust and lift pump. Deleting the EGR doesn’t mean removing it. The ECM can be tuned to bypass the EGR so you can still pass emissions.
I want a full delete as to not pump all the garbage back through the engine and lower my EGT The fact my oil comes out so full of soot is concerning.
Great info. thanks for all you do.
This really helped me. Thank You Nick!
So today I'm at my local GMC dealer I asked about installing a fass lift pump because that's something I've wanted to do to help the cp4. I know stupid idea to ask about modifying the truck but I did. They said it would void the warranty because it's sending more fuel and would just recirculate through and could damage other components. They even said lifting the truck could void the warranty so I guess be careful what you do if you want your warranty. Just wanted to get your thoughts on this thanks!
Of course a dealer’s going to say that; c’mon now.
Can I tune the truck for now and then if I was to do the delete can I use the same tuner?
Iv got a 2011 lml you ever come across a Trans slipping due to a bad tune or know of any issues? Thx
What power/torque do the 5 tunes normally add?
So I was just listening to your most recent podcast and you guys said you are giving a 10% discount on tuning for all duramax's and I noticed you didn't specify it must be emissions compliant. I was just thinking you might want to mention that because I called twice last year wanting to get my lmm tuned and due to the fact it was already deleted you guys couldn't tune it for me (which is really to bad because I loved the tune Nick gave me for a lb7 I had 7 or 8 years ago, so I was quite disappointed). Now please don't take this as a complaint I'm just making a suggestion. I really enjoy the podcast, definitely one of my favorites so keep them coming!!
Yes - excellent point - will add the disclaimer to the message - thank you!
And thanks for listening!
Duramaxtuner Hey Tfl just dyno the dually 2017 I understand it's a dually but the torque numbers suck bad why
Can you give us a call Monday morning and we'll see if we can help you figure this out. 815-568-7920.
How can I get the nice sound when I get on .
Why such a big change in rpm when shifting from 4th to 5th.. causes a turbo bark on occasion
Hey nick great info in the video. Question. I just bought a canyon diesel and thinking about tuning. It really needs it. When going for service should I flash the truck back to stock before bringing it in for service so they don’t know it’s been done or is it a waste of time. This is my first diesel so I’m trying to learn as much as possible. Thx .... Paul.
Better to be safe than sorry. Might as well go ahead and flash it.
How hard is it to install a tuner?
How do i get a tuner . What is the learning curve. Have a 2015 lml durmax
So my issue with deleting my 2015 LML, specifically the DPF & DEF is that they've been nothing but problematic! DEF heater going out repeatedly, the 9th injector failing and now DPF failure and not going into regen. I would want to delete to avoid continued issues! I live in MI so no issue with regulations here..
Same here that is the only problem I'm having it's frustrating
Nick bro I’m sold, I will be calling to get programmer.
Not sure which one to get. I think I do want the turn knob selector if possible for my LP five dirty max so let me know please which one you recommend.
Give us a call we can help: 815-568-7920.
I have a question? I have a 2015 lml, 3500hd and I need insight on deleting my truck. The pros and cons. I’ve heard that it clogs your truck. Or steals power. People just say to delete it, it’s better. I have no real reason why I would delete it or why I wouldn’t. Please help!
This should help: th-cam.com/video/bvYfEmiFRkI/w-d-xo.html
If I just tune it can I still change the exhaust to get a nice sound?
No.
So I have never owned a diesel and am just now looking into it. Don't you have to get an annual emissions inspection just like on a gas motor?? How do you get around that if you have deleted?
David Bradley I think it depends on where you live, in California maybe, but I live in Texas & and all 3/4 ton trucks and up (2500,3500, etc) are exempt from emissions testing when you get it inspected. Even gas 3/4 ton trucks are exempt, just so long as any deleting does not throw a check engine light at you, you should be okay, that’s where the tuner comes in handy, it will reset the codes. This is all From my experience & my understanding, I’m no expert, so I would ask the place you get your inspections at. Good luck!
Where do you live I can point you in the right direction for you local emissions laws
Do you guys offer a delete kit with your tunning. My truck has all emission on it but his hitting the regen up to 3 times a week because it doesn't get hot enough anymore. I short drive it 4 trips round back and forth to work. I dont think running could help to much by lowering the spot grams that would help it from regening as much. From the sounds of it deleting is my only option
I have the exact same issue ... happens when you live 6 miles from work...
That’s what you get with a diesel truck and short trips.
Still waiting on that UCC Video C:
Hi nick. 2011 lml with p20b9 code. Def heater. Any helpful tips where to buy a good heater? Other options? Thank you
We get our replacements from GM.
Do notttttt buy that.
Very good information ℹ thanks for taking the time to share your knowledge with us.
I’m still following you guys and would love to get my truck in there but Houston to Michigan is a long haul. My issue might be simple for you all but for me it’s frustrating. I have a 2005 LLY. I rebuilt the motor and basically stock with a Ryan’s turbo 64mm. The issue is that I have to press the pedal almost all the way down to get up and go and it’s still slow from 0-40mph. I have the calibrated power tuner and we went through numerous runs to try to get more out of it but I still have a sluggish motor 0-40. I wish Houston had someone that knows performance. I hardly think I’m above 500hp. If someone could solve this low end take off power issue I would pay them a $1000 just for the info if it worked. I would love to have it accelerate more like a gasoline motor. I was shooting for that goal with the upgrades on the turbo, tuner and larger turbo inlet and outlet pipe. Sure wish I could solve this. I have a F250 that has a man made dirty tune and it’s crazy fast off the line which I like but it’s a smoker. I can handle smoke but not the heavy stuff like this one is putting out on the Ford. I’m about to turn it down about 25hp just to get it more dependable.
We'd have to take a gander in-house. Sorry, it's an issue.
Yes .you are pushing note to delete, but you know it's not good for diesel to have all that trash in. My duremax deleted has 478 k. An still running like champ.😉
I saw an immediate improvement in performance and reliability once I deleted the DEF crap on my 2012 LML. DEF tripping limp mode was the worst when towing and 400 miles from home. full delete worth every penny.
Yup 100% better deleted my 2011 lml runs great now and can breath!!!
It’s insane how much better it is deleted. My 16 LML I just did a full delete. When I installed the y bridge kit you should of seen the soot on intake runners even with only 90k miles!
Just curious, why would electrical connectors become corroded after driving a deleted truck through a winter?
Salt.
What is your recommendation for the CP4
We strongly suggest a lift pump to get started with. At the least, from there you should do an Exergy Fuel System Saver (Mprop metering valve) upgrade. Your next option would be the Exergy Performance 10mm CP4.2.
great info do all 2011 duramax have the LML engine
Yes - 2011 to 2016.
Before delete 17.5 mpg highway .Deleted / tuned/ lift pump = 23 mpg hwy at 78 mph with Cruse control.
As stated in the video, MPG is mostly impacted by the increase in power and not the removal of emissions equipment.
@@Duramaxtuner I agree. I drive 60 k miles a year. Between 100k miles ( warranty ran out ) and 150 k miles I had over $6000.00 in DPF emissions related issues.
I know it's the law but honestly anyone who spends 60 to 70 k on a late model deisel and intends on getting years of service out of it are throwing there money away if they don't delete the dpf and egr and turn it back into a true diesel.
The trash that gets back in the crankcase alone ruins your engine.
I myself run a diesel hoping to get 500 k Miles out of one. I understand maintenance is everything and mechanical equipment fails but what there doing to diesel engines this day and time (be it by law or not) is doing nothing more than shortening what would be the true life of the engine.
You seem very knowledgeable and I would love to see a video from someone like you truly peel back the issues that most consumers of a Duramax have no idea about. Real issues that they better prepare for. Especially the consumers that buy them and use them for grocery getters and hauling there kids to ball practice like it's a family vehicle.
You clearly say you might gain 1mpg with your tuning but you dont guarantee that. Its proven that emissions delete plus tuning gain you 5 or 6 mpg. So if the power gain comes from the tunes and not the removal of emissions equipment does that mean your tunes are garbage?
Does the Spade turner work well with the pedal monster?
You wont need a pedal fooler with our Custom Tuning.
What about regeneration? So in tunning you add more fuel right? And if it's not a super clean tune itll throw your truck into regeneration more often because as everyone knows more fuel more smoke hence more regeneration. Worse full mileage. Just delete and be done. What I've learned is dont waist your money on the fancy crap. Keep factory piping minus dpf and everything else under the truck, factory intake box, swap the cp4 to cp3 and call it a day unless your doing some serious engine and trans work.
We have spent an incredible amount of time and effort to ensure our tuning is cleanest custom tuning out there. We have not had issues with increasing regen frequency without tuning.
Yeh that’s what Banks tuning said, and here we go reagen once a week. Really bad down shifts while in reagen mode all garbage.
Was going to delete till I watched this, now I believe tuning would be the way I would go.
Good to hear - give us a call tomorrow and we can talk to you more about your tuning options - 815-568-7920.
Big Truck Med Rv
I like your name. It made me laugh.
Save yourself the money and downtime on the side of the road and get it deleted
If you tune for heavy towing and then tune back to stock for service, can they tell if it was tuned and then void warranty?
While we cannot speak to anyone elses warranty policy, ECMs have some memory. If someone digs deep enough i am sure there is some trace. However, it is very rare to experience any issues with service visits to the dealership.
I am interested in how exactly deleting causes connectors to go bad
The connectors were left exposed to water and road salt.
That's what Dielectric Grease & then tape/tie them up in a safe spot is for.
The reliability of deleting make a big difference. I don't by trucks and trade in to get the new motor/body style...Those people will not benefit. I towed 20k lbs and don't plan on getting a new gmc duramax for 10 years. My last deleted duramax was 2008 and had no motor issues. Before I deleted I fought the particulate filter regeneration 5 or 6 times with only 12lbs. Deleted trucks have lower egt's than a stock truck. I had no problem trading in my truck...if you live in CA. don't bother. I do plan on doing some of these upgrades, the quality is 2nd to none.
DT understands the opportunity cost you describe in your post. However, we tune emissions intact trucks only.
What’s the difference between a 15 lml and a 15.5 lml
From our stand point not too much. There is a difference in the down-pipe flange and an OS change. others have gone into the details about some of the creature comfort changes.
Duramaxtuner ok just wondering how hard is it to install the tcm tunes
Do you sell tunes for deleted trucks?
We do not.
I was wondering, you guys seem to really be pushing for emission equipped power. I also understand as a business you can't condone breaking federal law as it could come back on the business, but I guess my question is would you guys tune a deleted truck now that you've made this push towards emission equipped power? I haven't seen this question before, so figured I'd throw it out there. Thanks in advance.
Hi Corey: We do not tune deleted trucks, period.
"MPG depends on your driving style" *constantly races and plays around on the road and wonders why he runs out of diesel so much*
Is it ok to delete egr and keep dpf?
thats something i'd like to know
Is there an performance exhaust that sounds good but keeps the emissions equipment?
The only aftermarket DPF is Bully Dog's for the Ford 6.4. It's apparently a very tricky thing to build. You can listen to the latest episode of the Diesel Performance Podcast to hear more about Bully Dog's effort. It's now March 2017, so it's possible other manufacturers will develop aftermarket DPFs in the near future.
I listen to every episode! Keep up the good work fellas!
Thanks Mike!
When it comes to deleting, most guys don’t care about the potential of power, it’s more so the longevity of the engine core itself. Purchasing failed emission components or the subsequent parts that fail because of them is expensive. Have you seen the replacement cost of a modern egr or dpf?? Not doing that.
My problem with whole delete discussion is as follows Three time i have to spend money to repair the screen, filter and had to have forced re-gend three times as well at $750.00 each time and no it just today turned over 10094.0 miles so its now out of warranty and its acting up again so i cant afford to keep going through these problem as i drive it everyday to work, and i could care less about what the EPA has to say because4 for some crazy reason they are the only private sector Organization that has more power then our Congress and they abuse it for sure. So until somebody will keep paying for truck to get fixed they can kiss my Rebel rear end.
Time invested means translated to you make a lot of money off us people
I was going to do a delete, but now am going to leave it alone. Thanks! 👍
Speedstack21 your engine will need rebuilt way before mine...
In re: tuning and the warranty voiding question -- Magnuson Moss Warranty Act 15 USC §2301. Be aware of the burden. As with any legal matter the answer is, "it depends."
Deletes are for reliability...not hp.
@Billycritser174 While It may seem easier to delete your emissions system rather than maintaining it the easy way out isn't always your best option.
Your truck engine and transmission are built to specific tolerances. You decide to tune your engine and transmission, adding more stress and wear and tear, and not changing any parts in the engine and transmission. You should expect your tuned engine and transmition to have problems in the future. And that’s why your warranty gets voided. Or you could take the video advice of a guy selling tuning products. This comment probably will get deleted quickly.
We dont need to delete your comment. We have spent countless hours testing, worked with thousands of customers, and have over 10 years of experience doing this. We are very confident in our tuning. Also, we know our fans love what we do. If you chose to stay stock that is just fine by us and I'm sure you didn't mean to question our integrity.
If knew anything about this drivetrain is that they are overbuilt to handle abuse.