The DPF (Diesel Particulate Filter) captures soot. When it gets full, the truck must "regenerate" to burn that soot away. 1. Understanding Regeneration Types
The "6.6 / 10" in your query likely refers to a specific step or status in the diesel particulate filter (DPF) cleaning cycle or a rating of the engine's performance. 🛠️ 6.6L Duramax Exhaust Cleaning Guide
The 6.6L Duramax is highly rated for reliability, but maintenance is key to avoiding "Limp Mode."
Move to an outdoor area away from flammable materials (grass, paper, fuel). Exhaust temperatures will be extremely high.
Put the truck in Park (P) and keep the engine idling.