DFM disabler released

[seatown]

Sorry to pop in here and deviate a little. We’re going to test drive some 21, 22 tahoes and Yukons this weekend… all 5.3. What should I be asking? Getting suspicious these were traded cause someone knew they had bad drivetrains.
Is there a way to know if it has the engine with the bad supplier parts?

 

[Silverado4x4]

Sorry to pop in here and deviate a little. We’re going to test drive some 21, 22 tahoes and Yukons this weekend… all 5.3. What should I be asking? Getting suspicious these were traded cause someone knew they had bad drivetrains.
Is there a way to know if it has the engine with the bad supplier parts?

They identified the bad supplier parts in the 5.3 motors from Sept 1 2020 to March 31 2021 engine build date not vehicle build date. On the 2021 Tahoe and Yukon I would probably stay away from that one unless it was already repaired or outside the engine build date. When the vehicle is built lets say in May the engine was probably built 1-2 months before that it's a question to ask the selling dealer if the repairs were made on the 2021.

 

[seatown]

This is a long shot. But someone really knowledgeable about the part numbers and packages willing to look at a dealer packet about one the vehicles I am looking at?

 

[nick14226]

This is a long shot. But someone really knowledgeable about the part numbers and packages willing to look at a dealer packet about one the vehicles I am looking at?

Carfax will show the repairs I’d imagine too, and most dealers will/should provide.

 

[seatown]

Carfax will show the repairs I’d imagine too, and most dealers will/should provide.

alright…
So clue me in here.
I went and looked at 3 Tahoes today. All 2021, but different trim.
Here is one of them
2021 z71
I assume all three the exact same drivetrain train. And from reading here I think that is the L84 with 10speed?

1) it has dfm, is there a specific recall or repair I can ask if they’ve done?
2) from my understanding the “certified pre owned”, warranties the drive train up to 100k miles?
3) back to this thread, is this disabler almost a must have? So plan for that too?

 

[seatown]

They identified the bad supplier parts in the 5.3 motors from Sept 1 2020 to March 31 2021 engine build date not vehicle build date. On the 2021 Tahoe and Yukon I would probably stay away from that one unless it was already repaired or outside the engine build date. When the vehicle is built lets say in May the engine was probably built 1-2 months before that it's a question to ask the selling dealer if the repairs were made on the 2021.

Where do you find that date info? Sticker? Carfax?

 

[Silverado4x4]

Where do you find that date info? Sticker? Carfax?

 

[seatown]

View attachment 450311

Thank you very much… the rig I am interested in is definitely in that range.

 

[15burban]

) from my understanding the “certified pre owned”, warranties the drive train up to 100k miles?

From my understanding, which I could be wrong, but it says 6 years 100k from New vehicle delivery. So, from my understanding that 6 years starts from when Joe shmo bought it brand new. So basically there's only 2 years left of it and possibly only 1 year since it's a 21 and could have been bought at the end of 20. Ok so maybe more then a year and a half.

 

[seatown]

From my understanding, which I could be wrong, but it says 6 years 100k from New vehicle delivery. So, from my understanding that 6 years starts from when Joe shmo bought it brand new. So basically there's only 2 years left of it and possibly only 1 year since it's a 21 and could have been bought at the end of 20. Ok so maybe more than a year and a half.

That’s a very good point it is six year OR 100,000…. Original title purchase date 4/21/2021

This dealer has kind of avoided technical questions. I asked if they’d disable DFM… they gave me the “GM designed it this way” ok sure. And They highly suggested I don’t use 3rd party disabler ok sure.

Still a chance that engine has faulty parts due to above graphic.