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Lifter issues again

Same here, covid truck :)
Guys, you still have the collapsible lifters, you just don't have the software for DOD. I know several people with over 100K on the 5.3 and 6.2, a few over 150K, and zero have had any issues with their lifters. I'm not saying lifters aren't ever an issue, they obviously are based on the number of instances documented in the past, particularly during the recall period specifically for lifters. However, outside of that window for the recall, its very unlikely that you are going to have a lifter issue, and if you do its usually going to be very early on. Again, proper OCI with quality oils and filters go a long way.
 
Do the diesels have the same lifter problems? I’m looking at buying a Yukon/Tahoe but I worry about this.
 
The 3.0L diesel does not have any lifter problems.
 
My 2020 TB had a lifter failure at 55,000km.
Took out a cam lobe.
Warranty covered replacing the cam and lifter rail affected. Wouldn't replace both sides.
Now I fear the day the other side fails.
Very expensive bills await.
GM has been foolishly focused on EV's instead of fixing the problems with their best selling gas powered trucks and cars.

Keep your engine oil and filters changed regularly.
 
Pulsar can deactivate the AFM/DFM for you. It does a couple of other things too. I just refuse to pay 500 USD for something so simple.

So do the redneck broke guy paying for a truck thing. Yes that is derogatory but accurate.

1. Get a start stop eliminator. Worth the money, easy to install and will relieve you of hitting the button each time. About $100 or so, less with black Friday coming up. The auto start/stop or A.S.S. is nothing to play with.
2. Put your truck in L9. Run the shift lever past D and it shows L1, then use the plus button on the shift lever to show you L9. You will not activate DFM due to programing that is already in your PCM/TCM.
3. Change your oil every 5,000 miles. GM is asking your lifters to work both mechanically and hydraulically. You need fresh oil for that. Even the best and greatest oil (you fill in the blank) needs to be changed no later than 5,000 miles. Even shorter OCI if you short trip or idle the truck for extended times.
4. Also as critical as the OCI, use 91-93 octane. The variable timing component will advance your timing, keeping it from the bottom or most retard timing setting. This will relieve stress on other components. Live data on the engine supports this finding.

Or, don't do it. There are a lot of GM 5.3 and 6.2 trucks out there that don't have the problems we experience with engine issues. This is simply a preventative measure that most trucks will benefit from. That last statement is entirely my own opinion (but more than an educated guess).
 
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