Micahsd
Full Access Member
- Joined
- May 6, 2021
- Posts
- 334
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- 153
Interesting reading on this tech tip which was posted to the GM TechLink website recently.
https://gm-techlink.com/?p=15823
https://gm-techlink.com/?p=15823
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Lifter trays are one of the most critical elements. One of our most experienced and knowledgable members decided he was going to delete his AFM system (earlier model year Denali) and replace it with conventional lifters (non AFM) and a cam that work with the conventional lifters.Interesting reading on this tech tip which was posted to the GM TechLink website recently.
https://gm-techlink.com/?p=15823
No issues here (yet). Mine was built in March ‘21 and got it in April so it’s about a year old and trailing yours at 8,200 miles.Anyone have any recent updates worth sharing? Have a 21 Tahoe Z71. Built Jan 2021, bought it March 2021 and have 13,000 miles on it with no issues. Reading all these lifter issues is giving me anxiety. Drive a ton on the weekends...love the Tahoe and no complaints (so far).
Thanks for the feedback. Would love to see data on how many L84 engines are out there and how many have lifter issues. It's obviously not 100% of them, but is it like 1 in 10, or like 1 in 4? I guess only time will tell how many are impacted.No issues here (yet). Mine was built in March ‘21 and got it in April so it’s about a year old and trailing yours at 8,200 miles.
Aside from a metal rattle when driving on rough roads coming from the area just below the 4WD switch that’s about the only complaint I have about it. Been real good so far.