SDPC Tech Tips: DOD Delete FAQ

Nick goes over a few common questions we get regarding VVT, DOD, and AFM systems on GM Gen IV and Gen V engines!
#SDPC #Camshaft #VVTDelete #DODDelete #AFMDelete #TechsualHealing

[@Ltperformance]

For those that replace the engine block, dont forget to replace the barbell/Oil diverter valve located in the backside of engine block behind rear engine cover

[@ericmularz4378]

Thank you for the tip on cam bolt! I have been waiting for about 3 weeks for a cam bolt for my wife’s Yukon.

[@Esteban-MK64]

Good thing I watched this video! I was getting ready to put everything back together. Now for more parts lol

[@charleslimparis2069]

Thanks for your videos. Long story, 2017 Suburban, blew a oil line to the cooler, dumped all the oil on the street in about 10 seconds. Fortunately, it was on a side street and I was able to immediately shut off the engine and have it towed to the shop. During my investigation of what I believed to be a low oil pressure issue (this video may have shown it is not an issue) but I will continue my investigation. This video, and the one about the variable pressure oil pump, earned my subscribe. I was looking for a image/video showing the oil flow through a Gen V LS 5.3 motor and for the life of me I can't find one. Might be a good video to do, how the oil move through the engine and it would also be good to do a video on "Normal Oil Pressure" in one of these engines. Thanks for the information and keep up the good work.

[@georgerenner2513]

Thanks for the great info, I am going to replace my timing chain tomorrow and it is good to know about the camshaft thrust plate and the valve bolt! Really that will finish my repair and I'm glad I will have all my bases covered! 2007 Yukon Denali 6.2L L92.

[@DustinKeating-yk3vq]

I bought me a 07 Silverado few weeks ago and didn't know anything about afm and come to find out that the previous owner had did a summit racing complete delete of the afm i should have went buy a lottery ticket that day i bought that truck because i was extremely lucky and the truck runs flawless

[@BubbyPlaisan]

was nice to have my ECM unlocked and connected with HPT. I was able to tune on laptop only and install the file after the drop in. Just a safe start tune. VVT, DOD delete, new cam ( 3 bolt with higher lift a little higher exhaust lowered the LSA. Stage 2. LT4 inj control, Lingenfelter HTFP, Flex, dual walboro Hellcat in-tank, Methnol. Dropped the timing a little also since I went with 10:1 + Whipple instead of 11.5. I also went with a new oil pump and used the white spring which came with the LT4.

[@gregalot200]

I've had a Range DOD delete installed on my brand new 2013, it has worked fine.

[@bshaw1979]

It will until it fails. That’s just a band aid.

[@gregalot200]

@@bshaw1979 11 years

[@bshaw1979]

@@gregalot200it’s dumb luck. Because if we knew anything of what you’re talking about, you would realize that I am correct.The part on the lifter breaks still moves even if you have that on there. That would not prevent a faulty lifter from not failing.

[@gregalot200]

@@bshaw1979 I'm a retired machinist from the Navy weapon systems and main engines specialists, when I bought the truck new, I went home and looked up that system and decided it would not hold up. That lifter fails in the down position this device stops it from ever going to the down position.

[@bshaw1979]

⁠@@gregalot200even with it deactivated by the range device. The cam lobe still puts some pressure on the lifter. So still very possible of failure. Which I have seen in other Silverado groups. But then again there are people that don’t do anything and never experience any issues. Maybe got lucky with not getting faulty lifters from the start. Which I’m guessing is happened to you. Luck of the draw as long as you do your regular oil changes.

[@merlinsrad]

The low oil pressure is due to the oil pressure valve in oil pan. Take out the allen head bolt,spring and ball bearing, if your model has one. Replace with a bolt. Oill pressure will be at 25 pai and up some are at 40 to 65 psi.

[@fbarr8540]

For new Silverado?

[@fbarr8540]

I have 4.8 2012 would this be a good idea to do?

[@edstoddard8688]

I just had the DOD issue at 263,772 miles. The culprit was the rings under the valley cover.

[@pipbernadotte6707]

Texas Speed also offers a delete kit as well.

[@thaddeusmiller2556]

Does your 2019+ DOD delete kit with LS7 lifters require LS7 7.80 pushrods or can the stock L87 7.85 pushrods be used?

[@stevenwitt2555]

My DOD is turned “off” in my computer. We used HP tuners to do it. Does it still need to be written out of the tune ? Been that way for years and never had a problem with it.

[@Fleetsidedieselrepair]

Have you had any customers come in with a Frieghtliner step van with an ls engine in it? I have a whole fleet of them. Can you delete those?

[@JoeKing-lo8em]

I have a 2015 gmc ….240,000 miles and my oil pressure has never dropped below 35lbs. I have also “disabled” my AFM/DOD with a flash pack tuner and haven’t had any problems in over 150,000 miles. Guess I’m just Lucky 🤷🏻‍♂️

[@marcocasillas5023]

I have a Gen 4 computer with the Gen 5 engine with VVT do I need to do anything about that or I could just leave it alone without deleting the VVT do I have to delete the VVT or can I just leave it does anybody know thank you love the video

[@Marc_Wolfe]

If you do a gen 3 24x conversion, some cheap OBD2 stuff works with free software. $50 OBDLink SX and Universal Patcher. That of course also means port injection and the more expensive pump gas.

[@matafdo123]

I have DOD tuned off from my 2011, and DOD deleting with a cam swap and plugging the relief valve in the pan. But plan on keeping VVT. Will a 10295 oil pump work with the build?

[@vwsandvettes3253]

Thanks Nick. My question is, why do I even want to do a DOD delete on an engine that is currently working fine? Is this more for engines that have higher mileage and perhaps in which the DOD has already failed? Silly question perhaps, but thanks in advance if you can help my understanding. Great video BTW - Ted

[@nickadams4663]

Many people do preemptively, delete it before it becomes a problem.

[@vwsandvettes3253]

@@nickadams4663 Ok thank you, makes sense. Have a good weekend.

[@jerrygibbons7666]

My 2021 6.2 L with 19,000 miles - High Country 1500 failed (bent push-rod, etc) about 45 days ago & GM dealer repaired in under warranty. I am not sure I can find a shop to do the work as I've heard GM is going after those that modify its V-8 engines?

[@TheMrmmkkpro]

@@jerrygibbons7666 Hi Jerry, my 2015 Silverado 1500 6.2 ltz with 117k just dropped cylinders 4 and 7. I point blank asked the dealership if they would do a AFM delete lol. Of course the answer was no, they wanted 8k to do the repair. Ended up bringing my baby home and am doing a complete delete myself. Interesting GM is going after shops, I never heard that. Have a great day.

[@slalomking]

They aren’t, that’s BS

[@Dusty_Bottoms_]

When you say "removing" DOD from the computer, is that the same as "disabling" DOD for example using HPtuners and then writing or flashing the ECM? Thanks for the great info!

[@Sdpartscenter]

Correct, you need to use HPTuners to disable those parameters.

[@Dusty_Bottoms_]

@@Sdpartscenter Thanks for the clarification!

[@blt2drive492]

LT1 E-rod apparently DOD is unactivated...so ECM should be fine. Doing the delete kit, is it just to circumvent the failure of the system down the road?? I hatre the thought of opening a brand new motor, but running as is once install complete. Another surprise, intake build-up on direct injection motors...I thought I'd step-up to the newest stuff after 6 LS installs...now thinking add methanol injection to stave off any intake valve build-up.. 🤔(?)

[@johnherrera8004]

Well that's just perfect, I reused my cam phaser bolt not know it wasn't recommended to, what could potentially be damaged by reusing it?

[@Sdpartscenter]

If you've already been running it for awhile you should be in the clear.

[@dreece2000]

Nothing is gonna happen your good.

[@MegaRandy40]

Called sales and wow all I got was well this is the only kit we offer. Did not even try to explain or look for what I was after.

[@franciscovazquez4073]

my yukon have vvt phaser but i bought an engine same engine but not vvt phaser can i just change the phaser to the new engine? 🔴🔴🔴🤔 THANKS

[@jermainespeed7580]

How do you turn the check engine light off when you do the dod delete

[@Sdpartscenter]

You should find out what codes are thrown with the CEL. If you haven't had the pcm tuned after performing the DOD delete, that is absolutely necessary.

[@07LSADRN]

Why does my gen 4 dod delete have a bit of trouble idling at start up. Dod is disabled and hp tuner is running the show?

[@07LSADRN]

LH6 ENGINE

[@supamario4620]

So amazing bully dog / diablo doesn't turn it off off?

[@BigC8675]

Where can I get a good Gen V LT build book with torque specs?

[@Mrdubomb]

If I tune out dod on my LS4, can I swap out the valley plate? I want to install an LS2 intake for my application but i hear there are clearance issues. I dont want to go to far into this thing if I dont have to.

[@PlymouthBarracudaV8Hemi]

Is it enough to replace LS3 cam, VLOM, LS3 lifters and ECM tune to delete AFM and save VVT ? L99 2011 camaro ss

[@enriquedelarosa2063]

Hi. My 2011 escalade esv had a lifter failure. What kit would you suggest to do the DOD vvt delete on it? Would I also need to replace the oil pump and block the relief valve on the oil pan??

[@justinallen9014]

I got a 2010 Tahoe LT 5.3L LC9 do you have a complete rebuild kit with VVT and DOD delete for .30 over bore and 799 heads ported .30 also

[@floydmayes4924]

I just saw an app that said GM eliminated the AFM/DOD systems on the 2021 to 2022 trucks due to lack of solenoids. Is this true?

[@roudyforr4962]

would pulsar lt fix this issue?

[@dreece2000]

Hp tuners is the only tool to use. If you buy enough licenses you will eventually have enough credits to be able to flash for free if you’re trying to do different models for different people. It’s good software. I used to get mad about the price of the vin, but I can see how much time these guys have put into it.

[@MrBuddy7798]

HP tuner is the was to go till you can do a cam and lifter swap

[@robertbass974]

I've had a range unit in my Z06 for 18 months and over 5000 miles no problem.

[@nickadams4663]

On a DOD deleted LT4? What brand range unit?

[@robertbass974]

@@nickadams4663 The actual Range that is for the Z06. Bought it on amazon and have no more 4cylinder mode and mo drivability problems.

[@nickadams4663]

Oh ok I'll have to look for those. What cam did you go with in your car and how do you like it?

[@jaimonjsdad]

I’ve had mine tuned off for last two years and had cylinder 6 afm failure two days ago. They will fail no matter what without the proper delete. Beware!

[@adambright2761]

@@jaimonjsdad same story here with a 15 Silverado. Range AFM disabler since it was new... Dropped AFM lifter at 104k and again on a different cylinder at 112k.

[@DeltaVTX]

I’m doing 65 and my 105k mile L94 is at 37 psi oil pressure.

[@bernard2799]

My afm disabler 1 year install with no issue, you dont always need to delete it

[@Skidd2]

have a truck with 300k.... picked up a 4-5 year newer engine to build and swap it out with... previous owner kept the truck's maintenance up

[@Braapcity]

Is HP tuners a suitable software for DOD delete?

[@Sdpartscenter]

It is pretty much the only one.

[@luiszaragoza5224]

Would I be able to remove the afm cover and replace it with a regular valley cover would I have a problem with the oil getting to the lifters

[@luiszaragoza5224]

After I get it removed from the computer

[@Sdpartscenter]

You still have to remove the AFM lifters, you can't just do half the process.

[@luiszaragoza5224]

@@Sdpartscenter okay just wondering, thank you

[@SecondSunHomeFarm]

Biggest question is, will doing a delete and tune, will it trigger a fail at the smog shop, in California?

[@Sdpartscenter]

With them failing for any tunes outside of factory parameters, then yes.

[@ryan8456]

No it will still pass if all you did was turn dod with a stock 5.3 or 6.0 cam and kept all emissions I do them all the time and they still pass

[@jorgevelazquez4942]

I have a 2014 Silverado with the L83. I’ve done intake manifold and TB grade up from the L86 also exhaust and a rune with the DOD delete from the pcm. Drove the truck from Houston to Colorado Springs. With no issues I want to add more HP what kind of came should I be looking for

[@roguethunder623]

I'd go with a btr or a TSP stage 2 it's a decent cam with some more power

[@fbarr8540]

Ima copy you bro 😂 ima do 5.3 swap on a 2012.

[@robertm2172]

I have a question so I own a 2016 camaro ss with the manual transmission. Dod does doesn’t work on the tremic option but is all that junk still there?

[@Sdpartscenter]

No the LS3 does not have DOD. If you had an auto, it would.

[@RichZehring]

@@Sdpartscenter Actually it is an LT-1 and yes, the lifters are still in there.

[@MikeSmith-nu9wt]

There not supossed to be in a manual shift vehicle from what i understand ..

[@zoeman2958]

Whats the difference from the 3-bolt 4x and 1x cam sprocket?

[@Sdpartscenter]

Simply put, the raised portions on the sprockets. 1x has one long lump running 180° on the outer radius, 4x has 4 individual ones. 1X Sprocket: sdparts.com/i-20089464 4X Sprocket: sdparts.com/i-20089467

[@zoeman2958]

@@Sdpartscenter ok i did a VVT delete and notice its a 4x vvt do I need to put a 4x sprocket gear because I'm having issues with the 1x sprocket on starting and a little small backfire here & there

[@johnkowloon8187]

When mine starts tomiss the stabilitrack and traction control lights start flashing ar

[@MikeSmith-nu9wt]

Thats normal , when the computer detects a problem it shuts them off , find the miss , fix that , those others will go away on there own

[@AXC629]

#SDPC Do these (see end of sentence) work to shut off AFM/DOD until it can get tuned out? Have a 500 mile trip and need to be able to travel and I own this chip!! Chip = Range Technology Active Fuel Management Disable Device (amazon)

[@Sdpartscenter]

Sorry you need to get it tuned out before you try and drive on it. From past experience with customers the chip won't do anything to help. Any tuner worth their salt can bench tune your pcm to shut off those parameters if you can't make the drive yourself.

[@grominwithrob1339]

But HP Tuners and have a whole world of tune ability. It makes disabling DOD stupid easy.

[@BubbyPlaisan]

The L-87 is a High Output Engine with a 60+ cold start and as far as 70 at wot. A VVT delete will change those numbers?

[@dreece2000]

What are you saying I’m confused

[@BubbyPlaisan]

@@dreece2000 no buddy, just a question. I’m about to drop my first minus VVT LT and don’t want to freak out if my psi is lower. As u know the LT is a wallet burner and I don’t plan to build another one for myself any time soon.

[@supamario4620]

I felt let's out." Do i have to....."

[@danf633]

I did a cam and I have code p0010 and says permanent

[@dreece2000]

You got it out of time on cam

[@danf633]

@@dreece2000 how would i fix that?

[@dreece2000]

@@danf633 you have to pull the timing cover back and off and line the dots on the gears up

[@johnnyp5573]

I hear what you’re saying about a device that stays plugged into the obd port. But what about a handheld tuner that completely shuts off dod/afm/dfm? You know like superman with a chip on his shoulder.

[@Carl_Jr]

I can only tell you my experience so take it with a grain of salt. I have a 2012 Silverado with the LC9 5.3L and used a Hypertech Max Energy programmer to disable the AFM over 2 years ago and haven't had any problems. The truck had about 65k miles when I did it and now has 80k. It drives like a dream. No change in mpg, either. I did not do a cam swap to remove the lifters. All of the guts of the engine are still stock. *Knock on wood* Besides the AFM, I also love the ability to change tire size, change the rev limiter, change the shift points, change the shift firmness and if I ever change the gear ratio I can adjust for that, too. And, no. I don't have to leave it plugged in. 👍

[@Sdpartscenter]

Hi Johnny P, you can definitely do that. You can disable the DOD using something like HPTuners. This can prolong the life of your DOD lifters by not having them go in and out of 4 cylinder mode. Some have had no change in MPG, some have seen an improvement in MPG, it really depends on how they drive and where they're driving.

[@SaeedAli-ho6jr]

I put (non dod ket) on my 2015 tahoe, and I deactivate dod program, but I get P0011 camshaft position!! what is the wrong for that?? Thanks

[@Sdpartscenter]

Did you go with just a regular OEM style non AFM cam or aftermarket? Did you add a limiter or lock to your cam phaser?

[@Bam590]

What about if you don’t wanna delete that how can you make it?

[@RAWRMotorsports]

My build hold 60psi at hot idle with 5w30🎉

[@20tea]

You have deleted dod and vvt right? My vvt yukon throws the stabilitrack error due to higher than normal oil pressures.

[@RAWRMotorsports]

@20tea 02' don't have any of that bs ... but yeah any gen 4 or5 gets deleted

[@2023C8HTC]

The Latest Range works flawlessly in my 2023 Camaro and keeps it out of 4cyl mode.

[@darrininverarity4297]

Driving around with a CEL on is bogus,makes me think the car is broken.

[@tdclymore]

What is all the hatred of the DOD system? I have a 2017 Camaro SS and mine works fine. Full power when I need it. 30 MPG when I don't!!!

[@V1CTORYLAP718]

here are a few reasons: Many people find the four-cylinder sound annoying if their vehicle is equipped with a louder aftermarket exhaust. Some drivers want V8 power under their foot at all times. AFM lifters have a history of failing and oil consumption can be a problem. Found on google.

[@snooka2484]

Eventually the afm lifters will fail. It's incredibly common on the truck platform, Sierra/Silverado. When a lifter collapses it almost always scores the camshaft. So...a dealership will only replace the failed lifter and sometimes the camshaft as well. A few months later or even a year later a different afm lifter will fail. It'll keep happening and unless you're doing the work yourself you're looking at thousands each time due to the labor. It's essier to just get rid of it. AFM/DOD delete kit+ls7 style lifters and gain some horse/torques from the new aftermarket camshaft. Disabling AFM from the tune (hptuners) doesn't prevent lifters from collapsing. It happened to me. Totally sucks. btr stage 2 cam+afm/dod delete going in this week. Hoping to see upwards of 650-700whp....I've done other stuff to my truck. 😁

[@Hoosierkappy]

What other stuff have you done? I'm ordering the same kit this week.

[@sbg4422]

Dongles definitely DON'T WORK!!!

[@44hawk28]

The idea of shutting off half the cylinders is the problem. That is the stupidest way to get fuel mileage out of a V8 that I have ever heard. You can get far better fuel mileage out of a V8 when it isn't calling for torque or for a lot of power, merely by defueling the engine. You can run it considerably lean and get a hell of a lot better gas mileage than you can by shutting off half the cylinders and having to push all of that dead weight around and around and around and around. Only an asinine idiot would think that shutting off half the cylinders is a great way to get better fuel mileage. I've seen the Chrysler Hemi get an average of about 25 to 26 mile per gallon while driving down the roadway at about 60 to 65 mph in a Chrysler 300 that weighs 4,000 lb. I've gotten 22 miles per gallon out of an old school 440 when I leave the tune on the carburetor and it doesn't even have an overdrive gear or a lockup torque converter. And that would be worth almost 10 miles per gallon. If I do the same thing with that same Chrysler Hemi that shuts off 4 cylinders, I will get approximately 20 to 22 miles per gallon. However, I'll take another example, a 1994 Camaro z28, because of the styling of the car at 85 mph with the air conditioner on, I have averaged 28 and 1/2 miles per gallon. At 65 I've got 35 miles per gallon all day long. And that isn't doing anything to that engine. You put some decent plugs in it and a little bit better cam. And there's no reason why that car shouldn't be getting 42 to 45 miles per gallon and not shutting off a single cylinder.

[@aphil4581]

It's the government! They make the car company's do dod and vvt.

[@McadMcad]

Do you water the gas down with distilled ?

[@shadowopsairman1583]

Vvt is crap on any engine, Id remove it on all engines

[@doubl33Ace]

Vvt works wonderful on K-series and VQ engines. They are crap on most domestic V8 engines.

[@myrondel]

Hey, say “actually” again.

[@nickadams4663]

Actually, you can just rewatch the video and hear it as many times as you want. lol

[@jamiecunningham6540]

Hi I have almost made up my mind what tuning tool I will be buying I am curious to know what you use or recommend I am @ a point outside help is more than the tool been in the trade long enough too know when just Who do you trust if its a secrets U can Email Ha HA Thanks