What are the most common Duramax 6.6L engine problems?
What are the most common Duramax 6.6L engine problems? 5 Most Common LBZ Duramax 6.6L Engine Problems. 1 1. LBZ Cracked Pistons. The LBZ is revered for its tune-only performance capabilities. With various upgrades, this engine is easily capable of 2 2. Duramax LBZ Water Pump Failure. 3 3. Glow Plug Failure – LBZ. 4 4. Allison 1000 Transmission Line Leaks. 5 5. Duramax EGR Problems. How many versions of the Duramax diesel engine are there? All told, there are six different iterations of the Duramax diesel engine: LB7, LLY, LBZ, LMM, LML, and L5P spanning from 2001 to the...