Need professional Truck Engine Diagnostics in San Angelo, TX? Alfred’s Diesel and Trailer Repair uses industry-leading JPRO diagnostic technology to quickly identify engine and electrical issues in commercial diesel trucks. We also provide brake repairs, suspension service, steering repairs, cooling system maintenance, transmission repairs, battery replacement, and general truck repair services. Trust our skilled team to deliver accurate diagnostics, quality workmanship, and reliable solutions that keep your diesel truck operating at its best.