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Mack MP7 (2021-2025) Fault Code List

Mack MP7 (2021-2025) Fault Code List

by Kyle Cooper | Jul 22, 2025 | Diagnostic Guides and Troubleshooting, Diesel Repair, Maintenance Tips and Procedures

The Mack MP7 engine continued to power regional haul and vocational trucks through 2025 with a balance of fuel efficiency and performance. From the Mack Granite to the Anthem, having a complete fault code list is key to cutting downtime and getting trucks back on the...
CUMMINS L9 (2024-2025)  FAULT CODE LIST

CUMMINS L9 (2024-2025) FAULT CODE LIST

by Kyle Cooper | Jul 22, 2025 | Diagnostic Guides and Troubleshooting, Diesel Repair, Maintenance Tips and Procedures

The Cummins L9 engine for 2024–2025 continues to be a top choice for heavy-duty trucks, buses, and vocational applications thanks to its balance of power, fuel efficiency, and durability. Keeping these engines running at their best means staying ahead of fault codes...
CUMMINS L9 (2021-2023)  FAULT CODE LIST

CUMMINS L9 (2021-2023) FAULT CODE LIST

by Kyle Cooper | Jul 21, 2025 | Diagnostic Guides and Troubleshooting, Diesel Repair, Maintenance Tips and Procedures

The Cummins L9 engine has been a trusted workhorse for heavy-duty trucks and buses from 2021 through 2023. Known for its balance of power and fuel efficiency, this engine helps fleets stay on the road with less downtime. Keeping a clear fault code reference on hand...
CUMMINS L9 (2016-2020)  FAULT CODE LIST

CUMMINS L9 (2016-2020) FAULT CODE LIST

by Kyle Cooper | Jul 19, 2025 | Diagnostic Guides and Troubleshooting, Diesel Repair, Maintenance Tips and Procedures

The Cummins L9 engine (2016–2020) continues to be a popular midrange diesel choice for medium- and heavy-duty trucks, buses, and construction equipment. Known for its reliability and fuel efficiency, the L9 relies on clear fault code diagnostics to keep downtime low...
Detroit Diesel Series 60 14.0L  (2007-2009) Fault Code List

Detroit Diesel Series 60 14.0L (2007-2009) Fault Code List

by Kyle Cooper | Jul 18, 2025 | Diagnostic Guides and Troubleshooting, Diesel Repair, Maintenance Tips and Procedures

The Detroit Diesel Series 60 14.0L engine kept fleets moving strong from 2007 through 2009. Known for its durability and efficiency, having quick access to the right fault codes means you can keep downtime to a minimum. Detroit Diesel Series 60 14.0L (2007–2009)...
Detroit Diesel Series 60 14.0L  (2004-2006) Fault Code List

Detroit Diesel Series 60 14.0L (2004-2006) Fault Code List

by Kyle Cooper | Jul 17, 2025 | Diagnostic Guides and Troubleshooting, Diesel Repair, Maintenance Tips and Procedures, Product Tutorials and Software Updates

Detroit Diesel Series 60 14.0L (2004–2006) Fault Codes Listby Diesel Repair Team | July 2025 | Diagnostic Guides and Troubleshooting, Diesel Repair, Maintenance Tips The Detroit Diesel Series 60 14.0L engine continued to be a workhorse for many Class 8 trucks from...
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