Lifter Failure Question

[Black02Silverado]

1 hour ago, Brian Quattlander said:

Well - ready to join the party - 2019 Sierra 6.2L / 10- Speed - 57k - 0/20 Mobil 1 oil changes every 4-5k - Mobil 1 / Wix Filters every oil change - Premium fuel since purchased - First dealership was, well, let's just say will never go back - off to the second dealership next week - still in warranty (thank goodness) - I'll keep you all posted.

 

Would be interested in seeing what the oil looks like, any chance you can get a sample sent off for analysis?  This is one place to send to.  https://www.amsoil.com/p/oil-analyzers-test-kit-ups-pre-paid-oaiuppkit/?zo=521390

[Brian Quattlander]

On 5/31/2024 at 3:01 PM, Black02Silverado said:

Would be interested in seeing what the oil looks like, any chance you can get a sample sent off for analysis?  This is one place to send to.  https://www.amsoil.com/p/oil-analyzers-test-kit-ups-pre-paid-oaiuppkit/?zo=521390

Dealership stated the oil was analyzed and sent to GM before tear down - they claimed it came back good. 

[Brian Quattlander]

On 5/31/2024 at 1:32 PM, newdude said:

 

 

 

Do you have to post your exact story like 5 different times in 5 different threads?  Chill.

Great advice - Thank you so much and I appreciate your wisdom - Point taken - Have an amazing day.

[Edwin Hubley]

On 11/4/2023 at 8:12 AM, alrockaz said:

157 days later and the truck is back. Wow, that was a journey. The last delay was waiting for Holley to release their newest product, which is a handheld tuner with the ability to unlock the ECM and TCM on these newer trucks. Before this product, you had to send your ECM to HP Tuners or Holley (and presumably others) and it was hundreds of dollars just to unlock. Programming was on top of that. There were issues updating the tuner and he spent six hours getting it unlocked and tuned, with a lot of that time on the phone with Holley. Even without the challenges it would have probably been at least a two hour process. We got one of the first couple of dozen that were produced so I'm sure there are programming bugs to work out.

Heads were cleaned and rebuilt and all of that buildup from the direct injection engines is gone. Only driven it a bit so far but will drive it more today and change the oil again tomorrow just in case there are any tiny metal bits from the new parts in the engine - lifters, pushrods, camshaft, valves, valve seats.

The unlock for these ECMS is eight HP credits ($400) plus shop labor when applicable, and you need to have a certain version of HP tuners, and maybe specific equipment as well. 

 

New Holley tuner  https://www.holley.com/products/tuners_and_programmers/handheld_tuners/diablosport_intune_i3/parts/8225-R

 Hey man I sent you a PM. I bought a 19 Z71 L83 5.3 last week with 107k and I think a lifter just failed last night. Engine is misfiring and throwing a P0308 cylinder 8 misfire and P050D - Powertrain (cold start misfire).

 

I think we are in the same area and would appreciate your advice and maybe link me up with your mechanic that resolved your issue. I might attempt to tackle a DFM delete myself but I'd like to chat if you are willing. Thanks.

[Gangly]

On 6/30/2024 at 9:14 PM, Edwin Hubley said:

 Hey man I sent you a PM. I bought a 19 Z71 L83 5.3 last week with 107k and I think a lifter just failed last night. Engine is misfiring and throwing a P0308 cylinder 8 misfire and P050D - Powertrain (cold start misfire).

 

I think we are in the same area and would appreciate your advice and maybe link me up with your mechanic that resolved your issue. I might attempt to tackle a DFM delete myself but I'd like to chat if you are willing. Thanks.

If you have the L83, then you have AFM, not DFM.  Either way, the mechanical tear down and assembly is an easy process and can be done if you have access to a decent assortment of sockets, wrenches, extensions, and a torque wrench.  You can do it in your driveway, but if its your first time I would anticipate 25+ hours.  If you need to replace the cam, throw a few extra hours in there as well.  I replaced the lifters in my truck myself, and its not a terribly hard process, just time consuming.  Good luck, and if you have any question then please post them.

 

Items of Note:

-Spray the header bolts with penetrating oil the night before you plan on taking them off.  If you break off a header bolt in the head, you're going to add a lot of headache to the process.

-The most time consuming items will be disconnecting and reconnecting the y-pipe from the manifolds since the bolts are at horrible angles, and prepping the heads/block surfaces for reassembly.

 

 

[Edwin Hubley]

On 7/22/2024 at 1:45 PM, Gangly said:

If you have the L83, then you have AFM, not DFM.  Either way, the mechanical tear down and assembly is an easy process and can be done if you have access to a decent assortment of sockets, wrenches, extensions, and a torque wrench.  You can do it in your driveway, but if its your first time I would anticipate 25+ hours.  If you need to replace the cam, throw a few extra hours in there as well.  I replaced the lifters in my truck myself, and its not a terribly hard process, just time consuming.  Good luck, and if you have any question then please post them.

 

Items of Note:

-Spray the header bolts with penetrating oil the night before you plan on taking them off.  If you break off a header bolt in the head, you're going to add a lot of headache to the process.

-The most time consuming items will be disconnecting and reconnecting the y-pipe from the manifolds since the bolts are at horrible angles, and prepping the heads/block surfaces for reassembly.

 

 

It is a L84 and the mechanical delete is done. I just need to find the most cost effective tuning to delete DFM from ECU. Btw 2019+ did not get L83 only L82 (AFM) or L84 (DFM).

[Gangly]

I cant remember who, but I spoke with Texas Speed (probably the number one LS and LT builder in the nation) about tuning out DFM on my truck and they recommended a shop in Houston.  I think it might have been House of Power, but they also said that multiple entities would do a mail order tune for just a DFM delete.  I would call them, they would know since they sell the DFM delete kits as well.

[Simcoe_Seadoo]

@NORTHERNX31

This is exactly what happened to my truck.  This is my 5th GMC. 134km on it. Meticulously serviced. 

Every one had some quirk but this failure is unacceptable IMO.  Service bulletins have been issued a number of times over the years and yet it's still a secret that GM hopes will happen when you're out of warranty so they can recoup $$$.   Mine threw the same CE codes. Cylinder 1.  Lifter, cam and bent rod.  Nice.  Thanks GM  I'm out $8422.70.  Yep, paid to fix it.  Have no other option.  Now I don't trust the truck and worried with good reason cyl 7 could be next, another $8K... 

Am thinking I'll dump the truck and buy a Toyota or some Ram diesel.  The RAM sure has a nicer interior.  I'd divest my entire household of GM vehicles.

I do NOT abuse my vehicles, ever.  I don't speed, overload, OCI is per manual.    Have to say, that this truck is the only one I ever followed the OCI per manual. All others were @ 5k mileage.

 

Hey GM anyone listening?  Will you extend my engine warranty for THIS failure to 200k on YOUR wallet?

Edited October 9 by Simcoe_Seadoo
additional information

[Peper]

I have a 2018 Sierra Denali with 42,000 miles. Collapsed lifter and fourth cylinder bad. Being told to replace the whole engine? Does that seem right?

 

[RETIRED CWO2 USN]

Retired Navy, 2017 6.2 Midnight. Had an appt. scheduled for an oil change today, started the truck to take it in and noticed a very faint tap tap tap over the Borla exhaust when I started it.  let the dealer know when I arrived. They just called, definitely has a bad lifter.  They are now getting me a quote.  6.2 with 115k miles.  This is what I get for changing the oil early and doing ALL required maintenance on time and at the dealer.   They did tell me that they replace both banks at the same time and probably the cam, which is probably a good idea.  What the hell??  I get it if you don't take care of your vehicle, but damn I have spent a small fortune on schedule maintenance to prevent exactly this type of issue. I have been a loyal Chevy owner my entire life, this is my 10 GM vehicle, as my dad was a General Forman for Chevy for 40 years.  Wife and I are currently shopping for a new GMC Denali Ultimate for her. We will now shift gears and start looking at Grand Waggoners and KIA Telluride which are the two vehicles she was interested in to begin with, but I pushed back.  Definition of insanity is to continue to do the same thing over and over. Why in the hell would I buy another $120k problem. 

[diyer2]

We like our 19 Hyundai Santa Fe Ultimate. 

[Mothclew50]

On 4/16/2023 at 10:09 AM, l1tech said:

I've replaced lifters and cams on these with miles as low as 50k and as high as 160k. A few months back I had 2 6.2's in the shop at the same time for lifters and cam, one had ~75,000 miles and the other was pushing 120k. The funny thing is that on both of these neither had a failure on an AFM cylinder. I had a 5.7 Ram in the other day with 48,000 miles that need lifters and cam.

Just replaced number 6 set of active lifters in a 2019 Chevy Silverado 1500 5.3L L84 didn't bother to replace the valve guides they seemed fine. Engine ran for about 20 minutes and then number six went out again. Anybody ever had a brand new GM lifter go bad right off the bat. I did pre-soak 'em didn't put them in dry for sure. Could it be, the lifters weren't bad and something else like oil pressure to that lifter is getting blocked or DOD is malfunctioning? Neither lefter or was collapsed when I opened it. Any help would be appreciated.

[Mothclew50]

3 minutes ago, Mothclew50 said:

Just replaced number 6 set of active lifters in a 2019 Chevy Silverado 1500 5.3L L84 didn't bother to replace the valve guides they seemed fine. Engine ran for about 20 minutes and then number six went out again. Anybody ever had a brand new GM lifter go bad right off the bat. I did pre-soak 'em didn't put them in dry for sure. Could it be, the lifters weren't bad and something else like oil pressure to that lifter is getting blocked or DOD is malfunctioning? Neither lefter or was collapsed when I opened it. Any help would be appreciated.

I forgot could the valve guide have cracked or do anything to cause the lifter to collapse

[Mothclew50]

On 12/28/2023 at 11:14 AM, SierraAT said:

I also had the Range AFM Disabler installed since about 50k, and this still happened.  Chevy dealership wanted 8k for the repair and I told them to pound sand.  Now I'm investigating the progress of the class action lawsuit against GM.

 

The amount of faulty trucks out on the road is vastly underreported.  This is happening way more than people on the forums think and GM is laughing all the way to the bank with no repercussions.

I'm on my third repair to 1:00 and all the information I've gathered and read and found out on the internet you ain't lying something needs to be done I don't think the class action suits enough they're not covering enough with the vehicles that are messed up either.