This is the Duramax diesel (engine code LLY) which has some problems, but I will focus on this one. My head gasket blew around the #7 cylinder which also took a chunk of the head with it. I do run a performance program to help with the towing, but it is set at the lowest rating. A owner of a well respected diesel repair shop insured me the performance program did not cause this problem. It just seems to me this shouldn't have happened at this lower mileage.
This is the Duramax diesel (engine code LLY) which has some problems, but I will focus on this one. My head gasket blew around the #7 cylinder which also took a chunk of the head with it. I do run a performance program to help with the towing, but it is set at the lowest rating. A owner of a well respected diesel repair shop insured me the performance program did not cause this problem. It just seems to me this shouldn't have happened at this lower mileage.
- Wyattoneable .., Celina, TN, US