According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2007 Chevrolet Silverado has 6 documented known issues, with 3 rated critical. The most serious are Silverado Washer Fluid Heater Circuit Board Short — Recall 08V441, 5.3L V8 Active Fuel Management (AFM) Lifter Collapse and Camshaft Damage ($1,500-$4,500 repair) and Brake / Fuel Line Corrosion and Failure (Rust-Belt Steel Lines) ($300-$1,200 repair). Across all issues with published estimates, repair costs range from $100 to $4,500. DIY maintenance guides at au7o.io.