RDZ Truck Diagnostic LLC is a diesel truck repair and diagnostic shop serving the Chicago area. We work on semi trucks, box trucks, and commercial fleets, including Cummins, Detroit, Volvo, Mack, Paccar and more.
🛠️ FULL 24/7 SERVICE
-Shop open 24 hours
-24/7 mobile roadside service
-24/7 parts sales – “Parts on Call 24/7”
We provide:
-Engine repair
-Transmission repair
-ECU/computer programming and repair
-Electrical issues
-A/C repair
-DPF / aftertreatment systems
-Preventive maintenance for your fleet
At RDZ Truck Diagnostic LLC, we work with honesty, professional diagnostics, and fair pricing - focused on keeping your business moving 24/7