Welp…. Ya Fix One Thing…..Dreaded Lifter Tick

[17 Yukon Denali]

Well, I replaced the vacuum pump, swapped out the grill shutter……. This morning At 160,000 the dreaded lifter noise. I’m not sure if it’s stuck, collapsed or what. No idiot light, runs rough, sputtered going up the driveway. This one is beyond my abilities so I have an appt in the morning to drop it at the dealer. Alldata shows 9 hrs for 1 side or 11 hours for both so I’ll most likely opt for all 16 to get swapped out. I will keep everyone up to date.

Question….. Does GM have a DOD delete option or am I stuck with these springy turd lifters and an aftermarket DOD delete? If so does anyone know part #s so I info to ask about.

 

[CMoore711]

I have never heard of a GM dealer offering the option to do an AFM/DOD delete at the dealership through their service department. Though it could be accomplished mechanically with mostly GM OEM parts it requires an ECM Tune that dealerships do not do.

I'm fairly certain that upon diagnosing the problem they will offer as a repair to replace broken/failed parts with the same (or updated/current part #'s) parts and reassemble.

Depending on your relationship with the service advisor and technician and their experience maybe express to them your interest in an AFM/DOD mechanical delete and ask your service advisor or technician if they know of any local shops they would recommend to do the work?

If you are interested in mechanically deleting the AFM/DOD and know you will be paying someone to do the work I would highly suggest finding a local GM LS/LT performance shop. Many of them will likely be familiar with the process, the parts needed, and be able to offer the ECM tuning service that will also be needed after switching to normal lifters and a non-AFM/DOD cam. A tune will be needed even if you go with a GM OEM non-AFM/DOD cam.

Since your vehicle is out of warranty and you will be paying out of pocket for these repairs I would personally recommend mechanically deleting the AFM/DOD.

You should post up your location and maybe some members can chime in with some shop recommendations in your area.

 

[Marky Dissod]

Questions:
1. Does GM have a DOD delete option?
2. Or am I stuck with these springy turd lifters and an aftermarket DOD delete?
3. If so does anyone know part #s so I info to ask about?

For 6.2L V8s? How cool / tight are you with your dealership?
What do you think are the odds that they will transplant LS3 valvetrain parts into your L94?
If you want to get rid of Engine Half@$$, see CMoore711's HELPFUL post above, and take his wise advice.

(CMoore711, I'd've preferred to have referred to your post as 'Helpful', which would've been more precise than 'Love'.

 

[K2 Kaiju]

Watched a guy on you tube do this in his garage - 2 part 2 hour video - check it out as its a good video of the involved process. The main thing I took away was the lifter that failed was a non AFM lifter so a conversion guarantees nothing. That being said, if I had to pay the price to rebuild anyway, I would maybe yolo and try for 700+ hp with the delete depending on rest of vehicle...

 

[Marky Dissod]

... main thing I took away was the lifter that failed was a non-AFM lifter, so a conversion guarantees nothing.

There are no guarantees, but you can shave your dice. May the odds be ever in your favour ...

 

[17 Yukon Denali]

It’s in great shape overall because I keep up with it, and it’s the wife’s daily driver. Because of that she feels safer with a dealer fix. Don’t want to throw a dog into that fight. I watched the videos too but what is compressed to 2 or so hours is a hell of a lot more and I need to minimize down time. We are in Wilkesboro NC.

 

[15burban]

Like was mentioned I doubt the dealer will replace anything different then what it came with new.

AFM DOD Active Fuel Management Delete Tuning Service for 2015+ Chevrolet E92 Gen V 5.3L 6.2L L83 L86 LT1

Having trouble with your GM AFM/DOD equipped vehicle? If you plan on deleting this problem from your engine, you must reprogram your ECU. No need to permanently install any attachments, such as the Range AFM Disabler, into your OBDII port. The tuning we provide will permanently delete AFM/DOD...

www.amsracing.net

When I was getting tires put on my truck at a local small shop I overheard the owner on the phone with a guy. I could tell it was a conversation about cam/lifter failure. When he got off the phone I politely asked what vehicle had the problem. He said a 16 or 17 silverado. I didn't ask too many questions as they had just finished my truck. The owner did say every gm cam and lifter they fix they send the ecm out to have it disabled and surprisingly isn't that much at all. I think the link above is who they use.

 

[B-train]

Or, buy 4 credits, and the MVI3 from HP tuners and toggle off the DOD. It's about $550. I just did this for both of my Yukons. More for the 2017 DoD, but also to play around for better mpg and driveability. If you enjoy that sort of thing, you can do it yourself after they repair it with non DOD parts. It can be done right in the parking lot before they fire it up. Or, before they even start any work.

Just out of curiosity, have you tried the Tennessee tune-up? A little sea foam, MMO, or Dexron 3 in the oil and drive it spiritedly for a few miles to see if it shuts up?

 

[Trey Hardy]

Or, buy 4 credits, and the MVI3 from HP tuners and toggle off the DOD. It's about $550. I just did this for both of my Yukons. More for the 2017 DoD, but also to play around for better mpg and driveability. If you enjoy that sort of thing, you can do it yourself after they repair it with non DOD parts. It can be done right in the parking lot before they fire it up. Or, before they even start any work.

Just out of curiosity, have you tried the Tennessee tune-up? A little sea foam, MMO, or Dexron 3 in the oil and drive it spiritedly for a few miles to see if it shuts up?

I have freed up my lifters on two or three separate occasions using marvel mystery oil

 

[BacDoc]

Watched a guy on you tube do this in his garage - 2 part 2 hour video - check it out as its a good video of the involved process. The main thing I took away was the lifter that failed was a non AFM lifter so a conversion guarantees nothing. That being said, if I had to pay the price to rebuild anyway, I would maybe yolo and try for 700+ hp with the delete depending on rest of vehicle...

This is what I would do!

If you really like the truck and are going to spend money to fix it then I’d take it to a performance shop and get some HP and torque along with the AFM delete .

 

[BacDoc]

I’m not in NC but this performance shop is in your neighborhood and these guys appear to have great ratings

Dyno Tuning/Performance Installs | Carolina Performance and Dyno

Carolina Performance and Dyno is a rising, top-notch shop located in Wilkesboro, NC. We are currently specializing in Ford/GM installs and dyno tuning. We also offer tuning on Holley EFI and MegaSquirt. Our main priority is to please and keep our customers happy!

www.carolinaperformance.us

 

[17 Yukon Denali]

Just dropped it off at dealership. Labor is $149.99 an hour. She asked if I was waiting…. I laughed and asked where I would be sleeping.

 

[Tonyv__]

Just dropped it off at dealership. Labor is $149.99 an hour. She asked if I was waiting…. I laughed and asked where I would be sleeping.

follow up with the total cost. I’m curious.

I was typing up a response prior to seeing this comment. I too thought a job like this was out of my realm, But I went for it and rebuilt the top end of my 6.0.

 

[17 Yukon Denali]

So far $900 to tear it down that comes off the price. Definitely a lifter issue they said.

 

[17 Yukon Denali]

Cam was damaged. 16 lifter/news plugs and wires/ new cam installed…$8100 Should be done in a few days. Greeeeeat. Guess I’ll start reading up on engine building and start planning for the next failure and I’ll build it so it WON’T break.

 

[Blackcar]

Cam was damaged. 16 lifter/news plugs and wires/ new cam installed…$8100 Should be done in a few days. Greeeeeat. Guess I’ll start reading up on engine building and start planning for the next failure and I’ll build it so it WON’T break.

Did you ask if they would install none DOD cam and lifters. I believe they use different oil valley manifold also .Its your vehicle they should install what ever you want.

 

[17 Yukon Denali]

Not gonna bother now. I’ll save that for my undertaking with the next failure. I’ll keep it stock for now go with a tune of some sort to limit the AFM.

 

[Tonyv__]

Cam was damaged. 16 lifter/news plugs and wires/ new cam installed…$8100 Should be done in a few days. Greeeeeat. Guess I’ll start reading up on engine building and start planning for the next failure and I’ll build it so it WON’T break.

My god…. Honestly if I was in your shoes and if you have the time.. I’d ask them to put all the parts in a box and have it towed home.

I did it in an express van (similar engine). 1/3 of the work is from the engine bay, the other 2/3 from the floor of the cab. I imagine a truck bay has to be much less of a pain in the ass.

I just went back and looked at my receipt, I paid $1500 for parts to rebuild my heads, did some extra just because I was in there and replaced my alternator with a high output, replaced oil pump, timing chain, guides, water pump. That price included getting the heads machined at a shop. However, I didn’t use all Gm parts

You could probably do this job with GM parts for I’m guessing $2500?


If you’re ballsy enough to pick up and wrench and get your hands dirty then I think you can handle a straight forward job like this. I’d really think about it if you want to save a couple thousand.

 

[Lundgren]

Cam was damaged. 16 lifter/news plugs and wires/ new cam installed…$8100 Should be done in a few days. Greeeeeat. Guess I’ll start reading up on engine building and start planning for the next failure and I’ll build it so it WON’T break.

You may want to ask about the cost to replace the engine. My father's failed and it was a few grand more for a new engine. But, it was right after covid, so they were back ordered a free months. He couldn't wait.

 

[17 Yukon Denali]

$7300 plus about $530 in taxes. They couldn’t give me a printout because they said their system is still down from the dealer cyber attack so I have to wait. As on as I get it I’ll post it here. So I don’t REALLY know what they say they did. Runs a lot better though. 2 year warranty. Bought an engine stand and am going to start collecting parts. Next time it’ll be a whole new engine that goes in. Looking at electronically stopping the AFM in the mean time. Next engine WILL NOT have that garbage.