GM Investigating Occasional Duramax Diesel LZ0 Engine Misfires

[BoostN]

If you own a truck with the LZ0 diesel engine, you may want to keep an eye out for any intermittent misfire symptoms or warning lights, and check with your dealer whether any inspections or updates are available. Since GM is in investigation mode (rather than full recall mode), proactive monitoring and reporting your experience may help.

Source: https://gmauthority.com/blog/2025/11/gm-investigating-occasional-duramax-diesel-lz0-engine-misfires/

 

[HacksawMark]

Saw the same article myself. 25,000 miles, so far, it's been great.

 

[BoostN]

We've had no reports here to my knowledge, nor have I seen anything about it on Facebook. You would think it would be talked about more since GM has already put a bulletin out on it.