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just wanted to give an update on my 21 at4 that has the 6.2 liter

 

im writing the review while fresh on my mind 

 

one bank of lifter went out and were replaced at 9,000 miles

 

and now yesterday lifters went down again at 99,000 miles 

 

i’m in a loaner from dealer I bought it from will be interesting to see if they were the replacement lifters or the original factory lifters 

 

stay tuned for more details 

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2 hours ago, Bob’s Sierra said:

just wanted to give an update on my 21 at4 that has the 6.2 liter

 

im writing the review while fresh on my mind 

 

one bank of lifter went out and were replaced at 9,000 miles

 

and now yesterday lifters went down again at 99,000 miles 

 

i’m in a loaner from dealer I bought it from will be interesting to see if they were the replacement lifters or the original factory lifters 

 

stay tuned for more details 

Whos gonna pay for this?

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when I bought the truck new in january of 21 they offered me 0% or 2.5% that came with a 4 year 125,000 warranty bumper to bumper 

 

this should be covered under warranty 

 

I believe that warranty has a $750 deductible 

 

stay tuned for me details 

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3 hours ago, Bob’s Sierra said:

*the dealer is paying for the loaner 

which is a brand new elevation with the 3.0 dmax 

Lucky you.... I was given a 24 Malibu. GOLD colored at that. (mine went out yesterday)

Edited by lennybg
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The dealer just called and stated the misfire was occurring on cylinder number 8

 

They will start the breakdown process next week 

 

The original issue in 2021 was on cylinder number 1 and that bank of lifters, pushrods etc was replaced when the truck had 9,000 miles on it 

 

So if I understand this correctly this would the opposite bank and be the factory lifters from 2021

 

He was also going to get with the warranty company on this repair 

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On 4/26/2024 at 1:16 PM, Bob’s Sierra said:

The dealer just called and stated the misfire was occurring on cylinder number 8

 

They will start the breakdown process next week 

 

The original issue in 2021 was on cylinder number 1 and that bank of lifters, pushrods etc was replaced when the truck had 9,000 miles on it 

 

So if I understand this correctly this would the opposite bank and be the factory lifters from 2021

 

He was also going to get with the warranty company on this repair 

Did the warranty company give you any crap over the repair? Im asking because my 19 just dumped a lifter(s) last week, it's still under the GM power train warranty until 05\21\24 so i got in just under the wire. I do have an aftermarket warranty that covers me until 130K, but im worried that if this happens to the other bank of lifters, they are going to try to weasel their way out of not paying. All oil changes have been done at the dealership since ive owned it (1yr) but i have no records of the previous owners oil changes. 

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I have no idea what’s truly going on with the truck at this point 

 

all I know is they plug it up last week and stated misfire on cyl 8, other than that the truck has not moved in the parking lot all week per onstar 

 

id imagine it will be a while before they tear into it and get a true diagnosis then we will see what warranty co has to say 

thanks

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