Ruhls Diesel Repair provides mobile repair services in Morrow, Crawford, Richland, Know and Marion counties. Ruhls Diesel Repair prides themselves on providing top notch quality service to all their customers. They provide the following mobile repair services for semi's, farm equipment and diesel trucks: Air Conditioning (Semi's and Tractors) Fuel Systems Suspension Brakes Tires (Semi's) Carburetors (Tractors) Mufflers Oil Change Tune-Up Electrical Engine Give us a call today!