Lifters went.

Joshfire72 · December 8, 2022

This might be a bit if long post.

Truck is a 2021 silverado LT. 5.3L

Just a hair over 30,000 miles.

So on 11/05 I got off work and went out to my truck. Started and had a odd start. Almost like the key or button wasn't held down long enough. Didn't think anything of and drove home about 2 miles later and hard knock from the engine, hard shifting from all gears and a rough idle.

Dropped it off at the dealership on Monday. Was not given a loaner and was not told how long it would be.

After going round and round for a month I finally talked to someone that told me the lifters went. They didn't say why the went.

Then they told me it was running fine but the throttle is stuck wide open. They tried to replace thr throttle body. Nothing. There now replacing the computer.

Over a month at the dealership and every week no loaner is available.

Corporate said they couldn't do anything about it.

This the 2nd time the computer had been replaced in this truck.

It's been nothing but a headache since I got this damn truck. I'm ready to park it in Chevrolet's show room through the front window.

My 2011 never had any issues over 350,000 miles and never replaced any engine parts in and it ran great when I traded it in. Biggest mistake I've ever made with a truck.

Sorry for the long rant.

Just wanted everyone to be aware that there is an issue with the lifters in this truck and engine model that seems to go out around 30,000 miles.

diyer2 · December 8, 2022

Known problem with the lifters.

Look around this site.

Joshfire72 · December 8, 2022

Ya I've seen a few on here. More or less just needed a rant. Tired if dealing with all the ****** from this damn thing and spending more time in the repair shop than on the road.

Silverado Mann · June 30, 2025

Same issues here. Same year and engine. Rough idle, jerking, shuddering in literally every gear. What was the solution? Did it correct the issue?

GMCustomerService · July 2, 2025

On 6/30/2025 at 10:40 AM, Silverado Mann said:

Same issues here. Same year and engine. Rough idle, jerking, shuddering in literally every gear. What was the solution? Did it correct the issue?

As Social Care advisors, our team works with customers as a liaison between you and the dealership to assist when repairs are needed. We would like to assist and get you into a dealer who can help, please email us at [email protected] so we can learn more. By sending us a message, you consent to the information you provide being monitored and recorded by GM or those acting on GM’s behalf, subject to the GM Privacy Statement: https://www.gm.com/privacy-statement.

lennybg · August 7, 2025

On 6/30/2025 at 10:40 AM, Silverado Mann said:

Same issues here. Same year and engine. Rough idle, jerking, shuddering in literally every gear. What was the solution? Did it correct the issue?

The only solution for the lifters is to either replace them with the factory junk that will break again, or pay a shop to install after market lifters+cam+tune to delete the DFM junk. GM DOES NOT care about customer service and will only support you up to the warranty end. They know they have a lifter issue and have no intentions of fixing/resolving the issue.

When my lifters went, luckily i was still in the warranty period other wise it would have been about $7K.

lennybg · August 7, 2025

On 7/2/2025 at 4:40 PM, GMCustomerService said:

As Social Care advisors, our team works with customers as a liaison between you and the dealership to assist when repairs are needed. We would like to assist and get you into a dealer who can help, please email us at [email protected] so we can learn more. By sending us a message, you consent to the information you provide being monitored and recorded by GM or those acting on GM’s behalf, subject to the GM Privacy Statement: https://www.gm.com/privacy-statement.

Stop, just stop. Everyone on this forum knows how Little GM cares.

carkhz316 · August 8, 2025

On 7/2/2025 at 4:40 PM, GMCustomerService said:

As Social Care advisors, our team works with customers as a liaison between you and the dealership to assist when repairs are needed. We would like to assist and get you into a dealer who can help, please email us at [email protected] so we can learn more. By sending us a message, you consent to the information you provide being monitored and recorded by GM or those acting on GM’s behalf, subject to the GM Privacy Statement: https://www.gm.com/privacy-statement.