5,500 miles, in limp mode

[Thunder_Grey2025]

no, just went into limp mode.

dang. well thank god for warranty haha. I feel like mine has a weird idle, it tends to have a little shake and the rpms drop very little, but I feel it. Not worried, but just going to see how it treats me.

 

AT4 Forum Fav 👍

Safe Jack 6 ton Starter Bottle Jack Recovery Kit - Grab one through Amazon!

[FlipsAT4]

Review your states lemon law. Buyback is triggered automatically once the vehicles sits at a dealership for 30+ days in most states. Go through the BBB autoline. GM customer service sucks.

 

[TripleB]

Review your states lemon law. Buyback is triggered automatically once the vehicles sits at a dealership for 30+ days in most states. Go through the BBB autoline. GM customer service sucks.

yep, on it. Done.

 

[TripleB]

Still no ETA

 

[TripleB]

WARNING!

LZ0 3.0 Duramax: GM Flags Crankshaft End Play Behind Bellhousing Noise & P06DD (25-NA-307)

GM bulletin 25-NA-307 (LZ0 3.0 Duramax, 2025–2026) links bellhousing-area noise + MIL/P06DD to excessive crankshaft end play (possible thrust-bearing failure). Dealers should measure end play at the crank pulley bolt with a dial indicator; spec is 0.084–0.316 mm (0.0033–0.0124 in). Expect to pay...

www.duramaxnews.com

 

[gemarsh]

WARNING!

LZ0 3.0 Duramax: GM Flags Crankshaft End Play Behind Bellhousing Noise & P06DD (25-NA-307)

GM bulletin 25-NA-307 (LZ0 3.0 Duramax, 2025–2026) links bellhousing-area noise + MIL/P06DD to excessive crankshaft end play (possible thrust-bearing failure). Dealers should measure end play at the crank pulley bolt with a dial indicator; spec is 0.084–0.316 mm (0.0033–0.0124 in). Expect to pay...

www.duramaxnews.com

Did you notice a knock?

 

[TripleB]

Did you notice a knock?

I did not notice any knocking.

 

[Dive Bar Casanova]

May be tricky to notice knock in a Diesel.

 

[gemarsh]

May be tricky to notice knock in a Diesel.

Excellent note. A thrust bearing really wouldn't make a whole lotta noise, maybe on some engines, but it'd be too late after hearing a knock, as the sparkles would have wiped the engine already.

 

[Dive Bar Casanova]

Several MFG's having these engine grenading issues is a Head Scratcher.
They've built millions and millions of successful, legendary engines.
GM, Toyota, BMW Mini's "motors made of chocolate" dunno.

 

[BHTruck]

Well that sucks. My buddy sent me the below video. Sounds like there have been some issues with the LZ0 25/26.
I sold my Tacoma a few months back after finally deciding on the GMC 1500 with the LZ0. Will be very bummed if the motor ends up being crap.

 

[TripleB]

The new engine has arrived. I should have the truck back by late this week, early next week. I'm still not sure what to do with this thing. Do I trust it?

I am still in discussion with GM & BBB on a buyback. Not sure how that will go.

The dealer has been good. They seem to be very frustrated with GM these days.

 

[BHTruck]

If it was the thrust bearing/crankshaft issue, I wonder if GM fixed the defective part(s) for the new motor and all motors going forward or if they are just putting a new motor in with the same potential issue?

 

[TripleB]

If it was the thrust bearing/crankshaft issue, I wonder if GM fixed the defective part(s) for the new motor and all motors going forward or if they are just putting a new motor in with the same potential issue?

You would think or hope they would check replacement motors but the fact this can happen at all make me wonder.

 

[TripleB]

Dealer called. Ready for pick up. I'll pick it up today.