Ok, I was going to put this in the diesel section but I've posted a few things there and they don't get much traffic. I know a bunch of you are diesel experts and can help me out.

About 6 months ago I bought my first ever diesel. 2015 Silverado 3500HD DRW 4WD LTZ. It had 79K on it at the time but I knew the previous owner, the truck was clean as a pin with all maintenance records and most importantly the price was right; in fact, very right for what I had been looking at locally. I pulled the trigger and haven't looked back. We love the truck and realize that I should have bought a DRW diesel years ago!

We don't daily drive it and use it on the weekends as a truck (plants from the nursery, lumber for Lowe's ... etc.) and also tow an enclosed trailer and race/show car with it a few times a year.

So ... first of all, when someone says they do a "delete" what are they talking about? Deleting all of the emissions and changing exhaust? And then they tune? My warranty is still in effect and has another 20K miles or year or so (I'll probably time out first). Is it worth it to do all of this? I know the 2015 LML is 397/765 but I've also read about CP4 issues. Sure, I would like a little better mileage and more power (who wouldn't?) but what I DON'T want to do is get into the mod this and then mod that and then this needs upgraded ... It's a never ending cycle with hotrod cars and I'm sure it can be the same with a diesel truck. Been there, done that and not wanting to do it again.

So, what to do?

Pics of said car or thread dies here, female boobie pics are an acceptable alternative

 

Big, aggressive tires on the truck are gone now. Put the stock Michelins back on. Much better ride.

 

My uncle deleted his. He was having major issues, so he had that shit removed. Been flawless ever since.

 

Delete it makes it run 10 times better plus way better fuel mileage, but voids your warranty, and if something breaks on these new trucks you better have deep pockets.

 

That's why I bought an older non DPF diesel. Didn't want to dick with it.

 

wait for warranty to be up then delete asap, you won't regret it

 

If you do a dpf delete on a newer diesel truck, and live ANYWHERE there is emmisons testing, you WON'T pass, and can face huge fines for tampering with the emissions equipment. Big time no no despite those that have done it. I don't care what the benefits might be, the penalties are much worse and not worth the risk.

 

I'm in rural East Texas and God willing have no plans to move. We don't have emissions testing and I don't see it ever coming out here to the boonies.

So what exactly are guys "deleting" when the warranty goes away?

 

they delete the dpf, egr, and I think the exhaust piss system. nets you better mpg and much more long term reliability. but as said before it voids warranty. you need a tune to get rid of the check engine lights and if you want a little more power that same tune can provide it.

 

The only thing you're going to use that warranty for is to repair the emissions systems. Hope that helps answer the question :lol:

 

Something to think about is if you will ever want to trade it in to a dealer they will hammer you on tampering with it......just saying...

 

Increased reliability,better mileage,better performance

 

I understand that once you delete the DPF and EGR you need a tune. From dealing with EFI cars for over 10 years I've had good AND bad experience with custom tuners. Does someone make a nice tuner with a preloaded tune that will delete the DPF, EGR and give me a little more mpg and power without going with a custom tuner?

 

Fleece Performance.

 

I had a 13 and thought about deleting it. I decided against it and the biggest reason is once you take off the items the truck will not start. You have to hook a "tuner" up to the truck to trick the computer to think the stuff is still hooked up. The tuners require updates etc. I just could not put my faith into some aftermarket product working for my truck just to start. The tuners have issues and need updates to work correctly etc. I wanted a new truck so I could just drive it and not worry about it.

Plus as stated resale would suck and any electrical issues will always be blamed on the "tuner".

 

Thank you. That was kind of my fear and what I was hoping to avoid. We had a modified C5 and we were kind of at the mercy of our tuner to keep things right. I guess if I go this route I'd have to find a reputable shop local but then again I don't want to deal with updates on the tune or fight problems down the road caused by the delete or tune.

Next question: I understand the CP4 might be an issue on the LML. Instead of doing a CP3 conversion, which is pretty pricey, can a quality lift pump solve the same potential problem?

 

i dont know much about the new ones but the 1st time it lets you sit along the highway you will delete it, my dad has an 07.5 and maybe 5 yrs ago it let me sit along the highway on a sunday night , middle of january in single digit temps... getting it fixed would have cost alot of money, a delete package from HS was around 1200.00 so thats what it got.....

 

Texas is turning liberal it seems. ^

 

Not likely.

 

If mine wasn't under warranty I would do a full delete today. Go for it, it will run sooo much better.

 

If Texas starts hammering diesels for emissions ... the end of the world may be near. For those of you not in the Lone Star state imagine how many Mustangs you see on a typical drive around your town and multiply that by 10. That's how many lifted, deleted, tuned, no muffler, big tire sticking out, black smoke pouring diesels you see on a given road at all times. They're everywhere and I can't imagine how many of those would fail a test.

 

They already are. Steer clear of Wise county, an hour NW of the DFW metroplex - it's absolutely infiltrated with State Troopers and DOT Nazis who often stop ANY late-model diesel pickup, to say nothing of every commercial rig out there on one of the busiest highways in America, and check for DPF deletes, along with dozens of other violations you can be written up for. Ka-ching, ka-ching.

You get caught without one, and your rig ain't moving - for delete violations or anything else, even something as minor as a tire with the wrong load rating. If you're on 287 headed for Dallas-Ft. Worth, you'd be 'wise' to detour around Wise County.

 

An upgraded lift pump isn't going to save or improve the lifespan of a CP4. The ceramic plungers in the pump simply fail. Some in 20k miles while others have 200k on them and are still going strong. The ceramic plungers are a known failure on CP4s, whether it's on a Duramax, Cummins, or Ford. It's merely a crapshoot as to when they will fail IF they fail.

 

Just had a "disaster prevention kit" installed on my 2011.For $400 its damn cheap insurance

 

I have a 08 F-350 SRW with the 6.4, bone stock will tow anything I hook to it. Just clicked 180k miles and runs like the day I bought it new. Leave the truck alone. IMO

 

The more research, reading, thinking I do the more I'm leaning this way. Our loaded 24' trailer with the car weighs around 8K so the truck doesn't even know it's there. I fear that doing anything will open up a potential can of worms down the road later. If something goes out or breaks of course I'll address that but for the time being I'm going to leave it all alone.

 

I'd vote for leave it alone. When you go to trade it or sell it with deleted emission equipment, dealers will refuse it. Even small lots will very low ball you if at all. If you have trouble on the road the dealers may not service it, even specialty diesel shops may not want to work on it.

I've got 400k on my 99 Dodge and its lifetime mileage is 20.5. It's stock. I rarely go over 65 mostly 60-62. If you insist on going 80 especially with a trailer you have no complaint about mpg. These trucks are bricks swimming in air.

Enjoy it like it is.

 

sounds like instead of spending money deleting the truck it would be better to spend on an extended warranty

 

I would wait till warrenty is gone. CP4 shits the bed and EVERY part of the fuel system has to be replaced. $10k plus to repair. 7% +or- failure rate. A lift pump woth extra filtration is a benefit just for the filtration. I just ordered an Airdog 4g for my 2015 Denali. I also just hit 100k miles and at 99600 my entire DPF tank system was replaced under warranty. It is warrantied till 120k miles.

 

I DELETED A 12 MODEL DENALI DRW....I WAS ACTUALLY RECOMMENDED BY A SERVICE MANAGER AT GM....I RAN A H&S HOT TUNE ON IT FOR 140K...BEFORE I BURNED A HOLE IN #2...TOWING MY 44' GOOSENECK...AS I DID MANY TIMES BEFORE WITH SAID TUNE...LOL...I PUT A NEW ENGINE IN IT....AND A DEALER GAVE ME MY ASKING PRICE...GOT A 16..SAME TRUCK...SOON TO BE DELETED....THEY WILL LAST FOREVER...AS LONG AS YOU DON'T RAG THEM....IF YOU CAN HELP IT....I CANT

 

I DELETED THE 12 MODEL...WITH 4K ON THE CLOCK

 

Hopefully when Scott Pruitt get done with the EPA we won't have to worry about them going after diesel trucks anymore.

I've experienced trucks before and after being deleted, besides the Hp gain most guy typically see about a 3 MPG improvement. So that's not hard to take.

 

Keep in mind emissions regulations are federally enforced and if the DOT guys want to climb up your ass, and start swinging a chainsaw around - they will.

If anyone needs Ford or heavy trucks done, pm me.