March 2, 2023 at 7:52 am #749540
Received the news that one lifter (cyl. 3) on my 2019 Yukon 6.2l collapsed/is damaged and will be replaced along with the camshaft as well since the collapsed/damaged lifter also damaged the camshaft. (see attached photo.)
It’s a 2019 Yukon XL Denali, 66000 miles — GMC pre certified with 100k powertrain warranty.
I’d like to see all lifters replaced…
Any suggestions? Thoughts? Things I need to be aware of?
ps: cannot attach photo…?!
March 2, 2023 at 9:57 am #749582
Please see this post: 2023 GMC 1500 6.2L engine miss
This DFM Lifter failure frequently occurs – it happened twice on my 2020 Denali 1500. The first time (at 8,800 miles) the pushrod was bent into an “S” shape. GM replaced all the lifters on that bank, and when it happened again at 33,000 miles they replaced all the lifters on the other bank.
Do a search on “GM DFM Lifter Failures” and you will see a lot of information, including a December 2022 class action lawsuit.
March 2, 2023 at 11:18 am #749614
Your welcome! Your local GM dealer service department should be very familiar with this problem.
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