Which build months are safe from lifter problems?

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Marc Marc

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I’m hoping to follow on your footsteps. Same build date but only up to 3,100 miles. No issues so far.
My AT4 build date is March/21 also, and I already turned over 10K miles. So far all is good; keeping my fingers crossed also.
 

2011TahoeLT

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Build date 3/31/2021 GMC Yukon Denali 6.2 V8 5,985 miles including a recently 3k mile round trip from NY to FL and back… No problems to date and ran perfectly…
 

gregtay

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Just hit 6k this week. No issues, build date of 3/21.
Motor's built after 3/4 are okay (really has nothing to do with vehicle build date, but they figured by 3/31 all the impcted motors would be installed. You can check your motor build date if you really want to know. There is a sticker on the back/bottom of the motor with the motor build date code.
 

SSGUNNER

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Motor's built after 3/4 are okay (really has nothing to do with vehicle build date, but they figured by 3/31 all the impcted motors would be installed. You can check your motor build date if you really want to know. There is a sticker on the back/bottom of the motor with the motor build date code.
Would you happened to know if motor build date and door jamb build date is different and if so by what margin?
 

SAdude

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Motor's built after 3/4 are okay (really has nothing to do with vehicle build date, but they figured by 3/31 all the impcted motors would be installed. You can check your motor build date if you really want to know. There is a sticker on the back/bottom of the motor with the motor build date code.
I was under the impression that the TSB date range was based on VIN build date (door jamb sticker) not engine build date.
 

Fireman591

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This is the right attitude/response!
Ya until your engine fails hundreds of miles from home with the vehicle packed with luggage and kids :( My confidence with GM V8s is in the ******* until they get a push rod/lifter combo that can work together with the DFM system.
 

Quark

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Ya until your engine fails hundreds of miles from home with the vehicle packed with luggage and kids :( My confidence with GM V8s is in the ******* until they get a push rod/lifter combo that can work together with the DFM system.
I agree with this 100%. The failures are real and continuing until proven otherwise. Not sure where these posters get their information that it is a certain time frame, is it GM saying so?

I think jayoco was replying to a statement I made that it is what it is and enjoy the new vehicle that was already purchased. I wouldn't buy one of these until GM shows they've quit building potential time bombs.

I've decided to change route and now I'm after the Cadillac CT5 V series. When everyone is clamoring for these huge people movers I choose to be different. It's an easy decision when I have an SUV that serves my purpose better than the new offering. And besides when hubbies are buying these for the missus sporty is manly and I do enjoy my toxic masculinity.
 

SAdude

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I agree with this 100%. The failures are real and continuing until proven otherwise. Not sure where these posters get their information that it is a certain time frame, is it GM saying so?

I think jayoco was replying to a statement I made that it is what it is and enjoy the new vehicle that was already purchased. I wouldn't buy one of these until GM shows they've quit building potential time bombs.

I've decided to change route and now I'm after the Cadillac CT5 V series. When everyone is clamoring for these huge people movers I choose to be different. It's an easy decision when I have an SUV that serves my purpose better than the new offering. And besides when hubbies are buying these for the missus sporty is manly and I do enjoy my toxic masculinity.
The timeframe was in the TSB posted earlier in the thread.
 

Quark

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The timeframe was in the TSB posted earlier in the thread.
I hope your faith is well placed my pension may depend on it.

If you don't mind can you reference this TSB for my peace of mind?
 
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