I am curious at what Point the general public started believeing Shops had a Magic Daig machine. I get people all the time I have a coolant leak can you put it on the computer? No we don't have one. Well Firestone Does. Jusy so everyone Knows there is No Magic Diag machine The Technician Has to Evaluate information from the cars computer to come up with a diagnosis. It is not as simple as hooking a computer and Printout come out of it with "Replace Water Pump" So next time you are at your local garage give them guys a break