"Diagnostics" is a collaborative art project between Oakland resident artists and car mechanics at Enthusiast Automotive. The auto shop is independently-owned by Keith “Speed” Pinckney, and it specializes in the maintenance of classic cars. This presentation reflects on the results of our two-year artistic and ethnographic engagement with the social and material environment around the restoration of cars. The images draw on the art exhibit installed and displayed inside the auto shop on July 23, 2011. The installation consisted of photographs, drawings, sculptures, paintings, video and music.