by Courtney Davis | Apr 23, 2025 | Diagnostic Guides and Troubleshooting, Diesel Repair, Maintenance Tips and Procedures
The PACCAR MX-13 engine continued to improve between 2017 and 2020, building on the foundation of previous models with updates to emissions performance, engine calibration, and onboard diagnostics. These engines remained a trusted choice for long-haul and vocational...
by Courtney Davis | Apr 21, 2025 | Diagnostic Guides and Troubleshooting, Diesel Repair, Product Tutorials and Software Updates
Wiring Diagrams That Save Time—and Your Sanity A tech is staring at a screen. Not frustrated yet—but close. The truck came in with a check engine light and an electrical fault. Nothing too complicated—if you can find the right circuit. But the diagram they pulled is...
by Courtney Davis | Apr 17, 2025 | Diagnostic Guides and Troubleshooting, Diesel Repair
The PACCAR MX-13 engine continued to evolve between 2013 and 2016, delivering better emissions performance, fuel economy, and reliability for heavy-duty fleets. With improved calibration, sensor systems, and compliance with EPA 2013 emissions standards, this version...
by Courtney Davis | Apr 15, 2025 | Diagnostic Guides and Troubleshooting, Diesel Repair
The PACCAR MX-13 engine, used in Peterbilt and Kenworth trucks, is known for its fuel efficiency, long service intervals, and smooth performance. The 2011–2012 models marked an early generation of the MX-13 with EPA 2010 emissions compliance, including Selective...
by Courtney Davis | Apr 14, 2025 | Diesel Repair, Maintenance Tips and Procedures, Product Tutorials and Software Updates
When a truck throws a fault code, the clock starts ticking. You need to know what it means, what caused it, and how to fix it—fast. That’s exactly why Diesel Repair’s Fault Code Database exists. Built for heavy-duty technicians and shop owners, this tool helps you...
