Dreaded lifter tick

Chris walker · November 3, 2023

My 2019 6.2 AT4 started having a tick about 3 weeks ago. The tick started for about a week and then went completely away for another couple of weeks. The Tick started again today and I scheduled service next week. I have a few questions for those that have experienced the issue:

I've read on the forum and it appears the tick can be lifters or from an injector. Has anyone had anything else had other problems that caused the tick?

It seems strange that a lifter issue would simply go away for a few weeks. If a lifter fails it would seem to be a persistent issue. Has anyone heard of the lifter issue masking itself for a brief duration?

Are there aftermarket lifters that are known to prevent this going forward?

I heard there was a class action lawsuit on the lifters but cant find much about it. Does anyone know where it stands?

I have an extended warranty but in just about every case I've had in the past they've found a way to deny any claim I've made. If I have to pay for this out of pocket what will it run?

Thanks so much for all of your input.

Edited November 3, 2023 by Chris walker

Bikerjon · November 4, 2023

6 hours ago, Chris walker said:

My 2019 6.2 AT4 started having a tick about 3 weeks ago. The tick started for about a week and then went completely away for another couple of weeks. The Tick started again today and I scheduled service next week. I have a few questions for those that have experienced the issue:

I've read on the forum and it appears the tick can be lifters or from an injector. Has anyone had anything else had other problems that caused the tick?

It seems strange that a lifter issue would simply go away for a few weeks. If a lifter fails it would seem to be a persistent issue. Has anyone heard of the lifter issue masking itself for a brief duration?

Are there aftermarket lifters that are known to prevent this going forward?

I heard there was a class action lawsuit on the lifters but cant find much about it. Does anyone know where it stands?

I have an extended warranty but in just about every case I've had in the past they've found a way to deny any claim I've made. If I have to pay for this out of pocket what will it run?

Thanks so much for all of your input.

Aaaah this can be a really bad problem. Search collapsed lifter on this forum. I would get your truck into a GM dealer right now. If it was my truck I would stop driving it and have it towed to a dealer. Collapsed lifters/lifter failure causing camshaft damage and possible engine failure is a known problem on the 6.2 and the 5.3L engines. I am not trying to scare you but lifter noise can be the only warning you get before engine failure.

Please keep us informed about this situation. Good luck.

Andy Chabot · November 4, 2023

I just picked up my 2019 RST from the dealership this evening. Exactly the same symptoms as the OP reported.... Collapsed lifter on cylinder #5, camshaft damage. A week later and 9800.00 bill I am beyond pissed at GM...

Take the advice of bikerjon

Bikerjon · November 4, 2023

15 hours ago, Andy Chabot said:

I just picked up my 2019 RST from the dealership this evening. Exactly the same symptoms as the OP reported.... Collapsed lifter on cylinder #5, camshaft damage. A week later and 9800.00 bill I am beyond pissed at GM...

Take the advice of bikerjon

Very very sad to hear this. How many miles on your truck? No help from GM?

Andy Chabot · November 5, 2023

82000 all the dealer said is you will have to appeal to gm.... Out of warranty

GMCustomerService · November 13, 2023

On 11/3/2023 at 3:14 PM, Chris walker said:

My 2019 6.2 AT4 started having a tick about 3 weeks ago. The tick started for about a week and then went completely away for another couple of weeks. The Tick started again today and I scheduled service next week. I have a few questions for those that have experienced the issue:

I've read on the forum and it appears the tick can be lifters or from an injector. Has anyone had anything else had other problems that caused the tick?

It seems strange that a lifter issue would simply go away for a few weeks. If a lifter fails it would seem to be a persistent issue. Has anyone heard of the lifter issue masking itself for a brief duration?

Are there aftermarket lifters that are known to prevent this going forward?

I heard there was a class action lawsuit on the lifters but cant find much about it. Does anyone know where it stands?

I have an extended warranty but in just about every case I've had in the past they've found a way to deny any claim I've made. If I have to pay for this out of pocket what will it run?

Thanks so much for all of your input.

This is certainly not what we like to hear, Chris walker. Please know, customer satisfaction is extremely important to us. Our team would be more than happy to take a closer look into the concerns with your 2019 Cadillac AT4 is having a ticking noise. To do so, please send an email to [email protected] with ATTN: Chris walker/GM Trucks in the subject line.

Please include your contact information, VIN, a brief description of your concern, and the name of your preferred dealership. We look forward to hearing from you. To learn more about GM’s Privacy Policy, please visit https://www.gm.com/privacy-statement.html. The information you provide may be monitored and recorded and is subject to the GM Privacy Statement.

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MadMatt3883 · November 18, 2023

Unless you have warranty why does everybody take their truck into a dealer for major repairs like this? You’re paying a much higher rate than you would for a good independent shop. For $9800 my DFM better be gone forever.

KARNUT · November 18, 2023

7 hours ago, MadMatt3883 said:

Unless you have warranty why does everybody take their truck into a dealer for major repairs like this? You’re paying a much higher rate than you would for a good independent shop. For $9800 my DFM better be gone forever.

The easiest answer is probably major engine repairs aren’t common. They’re transmission shops everywhere. Brakes and oil change shops too. I’ve had one engine fail including all my hot rods in over 50 years. The one engine failure was just out of warranty they replaced it, I paid the labor. My favorite shop of over 40 years was my muffler guy and out of warranty repair guy. He didn’t do engines unless you bought one to him. No money in it. You had to be a friend or good customer.

Grumpy Bear · November 18, 2023

On 11/3/2023 at 2:14 PM, Chris walker said:

It seems strange that a lifter issue would simply go away for a few weeks. If a lifter fails it would seem to be a persistent issue. Has anyone heard of the lifter issue masking itself for a brief duration?

No.