2020 Custom Fire Freightliner M2 problems, complaints & recalls
Safety recalls (1)
Fuel System, Diesel:fuel Injection System:fuel Rail 2021-08-06 · campaign 21V620000 · 9 vehicles
Defect: Custom Fire Apparatus, Inc. (Custom Fire) is recalling certain 2017-2021 Peterbilt 348, Freightliner M2, Kenworth T370, and T880 emergency vehicles equipped with Cummins L9 diesel engines. The sealing washer may not seat correctly in the pilot boreholes, allowing the high-pressure fuel rail assembly to leak.
Risk: A fuel leak in the presence of an ignition source increases the risk of a fire.
Fix: Cummins will inspect the rail threads and fuel lines, and replace the rail as necessary, free of charge. Owner notification letters were mailed on August 9, 2021. Owners may contact Custom Fire's customer service at 1-715-294-2555.
Service bulletins (2)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Engine And Engine Cooling:engine:engine Control Module (Ecu/Ecm) 2022-05-26 · FSB.0017 Ver. 2. · Service Bulletin/Repair Instructions
this document corrects: 1) smp 96 fmi 3 to spn 96 fmi 4, and 2) typo for spn 4241 fmi 10 description to "bank 2 sensor 1."
Unknown Or Other 2022-05-25 · FSB.0017 · Service Bulletin/Repair Instructions
this document provides instructions for the reflashing of oem engine control modules to address an inoperative fuel gauge and/or illuminated check engine light. these issues do not affect vehicle performance.
What owners report
2024-05-03 · Unknown Or Other“the def header failed on this truck and it causes the vehicle to be disabled. the def header is an emissions part. part number 04-31354-004 header-ssi,conc,6 bolt,cmns …”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.