These factory original service manuals printed by Helm are the manuals that was shipped to the dealership they covers all aspects of repair (except transmission overhaul) for the 2004 BUICK PARK AVENUE these manuals are in a new condition still in wrapper. These 2 books measure about 3" thick. This manual does contain the electrical section and is the book the dealership technicians would use when diagnosing and repairing these vehicles.  CURRENTLY WE ARE ONLY ABLE TO SHIP ON SATURDAYS!