DIESEL REPAIR BLOG

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Volvo D13 (2007–2009) Fault Codes

by | May 1, 2025 | Diagnostic Guides and Troubleshooting, Maintenance Tips and Procedures | 0 Comments

The Volvo D13 engine launched in 2007 with a focus on improving fuel economy, power output, and emissions compliance for the heavy-duty market. Equipped with EGR systems and advanced fuel injection technology, the 2007–2009 Volvo D13 engines became a popular choice...
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PACCAR MX13 (2024-2025) Fault Codes

by | April 29, 2025 | Diagnostic Guides and Troubleshooting, Diesel Repair, Maintenance Tips and Procedures | 0 Comments

The PACCAR MX-13 engine (2024–2025) represents the latest evolution in PACCAR's heavy-duty lineup, offering improved fuel economy, tighter emissions compliance, and even greater uptime reliability. Engine updates during this period included advanced calibration...
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technical Repair Docs That Get the Job Done—Fast

by | April 28, 2025 | Diagnostic Guides and Troubleshooting, Diesel Repair, Maintenance Tips and Procedures | 0 Comments

A tech is at the shop, laptop open, looking for torque specs on a valve cover. But the manual’s outdated. The online PDF won’t load on mobile. And no one has time to dig through a dozen pages to find one spec. That’s why we built the Technical Repair Documentation...
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PACCAR MX13 (2021-2023) Fault Codes

by | April 25, 2025 | Diagnostic Guides and Troubleshooting, Diesel Repair, Maintenance Tips and Procedures | 0 Comments

The PACCAR MX-13 engine (2021–2023) brought further enhancements in emissions control, fuel system precision, and onboard diagnostics—continuing PACCAR’s commitment to performance and uptime. These updates aligned with evolving EPA emissions standards and improved...
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PACCAR-MX13 (2017-2020) Fault Codes

by | April 23, 2025 | Diagnostic Guides and Troubleshooting, Diesel Repair, Maintenance Tips and Procedures | 0 Comments

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...
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Diesel Repair’s Wiring Diagrams

by | April 21, 2025 | Diagnostic Guides and Troubleshooting, Diesel Repair, Product Tutorials and Software Updates | 0 Comments

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...
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PACCAR MX-13 (2013–2016) Fault Codes List

by | April 17, 2025 | Diagnostic Guides and Troubleshooting, Diesel Repair | 0 Comments

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...
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PACCAR MX-13 (2011–2012) Fault Codes List

by | April 15, 2025 | Diagnostic Guides and Troubleshooting, Diesel Repair | 0 Comments

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...
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Diesel Repair’s Truck Fault Codes

by | April 14, 2025 | Diesel Repair, Maintenance Tips and Procedures, Product Tutorials and Software Updates | 0 Comments

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...
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Diesel Repair’s VIN DECODER

by | April 7, 2025 | Diesel Repair, Maintenance Tips and Procedures, Software Reviews | 0 Comments

Diesel Repair’s VIN Decoder is comprehensively designed to provide as much information as possible before users even scan for faults. With the VIN Decoder, you get complete coverage for all on-highway diesel vehicles: automotive (Ford, Chevrolet, RAM, and more), domestic AND import commercial trucks (HINO, Isuzu, Mitsubishi, FUSO, and more), RV, chassis, and specialty manufacturers. Diesel Repair’s VIN Decoder is monitored daily for failed VIN decodes (currently less than 0.01%). And when a decode fails, our team of experts immediately gathers the research to update our database.

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Detroit Diesel DD15 (2021-2022) Fault Codes List

Detroit Diesel DD15 (2021-2022) Fault Codes List

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The Detroit Diesel DD15 (2021-2022) is one of the most reliable heavy-duty engines, powering Freightliner and Western Star trucks with enhanced fuel economy, durability, and emissions control. Whether you’re a fleet manager, diesel technician, or truck owner, having access to fault codes, wiring diagrams, and repair manuals is essential for efficient troubleshooting.

In this guide, we provide a comprehensive list of DD15 Gen 5 fault codes, along with links to detailed repair instructions, parts cross-references, and labor time estimates inside Diesel Repair. Stay ahead of breakdowns and keep your DD15 engine running at peak performance!

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