St Joseph Diesel was established in 1976 by Steve Webster and his wife Rose Webster. The company specialized in diesel fuel injection repair. With-in the first year of operation the company purchased its first test stand from the Robert Bosch Corporation seeing a growing need for repairs in this specialized field. Soon to follow St Joseph Diesel became factory authorized to aid in providing the highest level of customer service.. Factory Authorized Fuel Injection & Turbocharger Center,Diesel Performance Accessories,Headquarters Engine And Wheel Dyno Services,Drive-in Service On Vehicle Repair,DPF Service/Cleaning.