Highlyfe Diesel Services is a family-owned diesel shop in Hillsboro, Ohio. We do most of our work at the truck, whether that's your yard, your jobsite, your farm or the side of the road. In-shop work is by appointment. For trucks outside our mobile area, we offer remote diagnostics and programming support and mail-in bench service for engine and transmission modules.
Pick a service below to read more, or send a service request. No account needed. We call back to confirm details and timing.
Mobile Diesel Repair
We bring the tools, the laptop and the OEM software to the truck, so you're not paying for a tow to find out what's wrong.
Highlyfe Diesel Services is a family-owned mobile diesel shop based in Hillsboro, Ohio. Our service trucks cover Hillsboro, Cincinnati, Dayton, Columbus and the towns in between, plus surrounding states when the job calls for it. We work on class 8 semis, medium-duty box trucks, diesel…
Read more →Mobile Fleet Maintenance
Preventive maintenance and repairs done at your yard, on a schedule that keeps trucks working instead of sitting at a shop.
Every hour a truck spends driving to a shop and waiting in line is an hour it isn't earning. Highlyfe Diesel Services brings fleet maintenance to you. We work for owner-operators with a few trucks, landscapers, excavation and construction companies, ag operations, delivery and box-truck…
Read more →ECM & TCM Programming
Module programming on the OEM software the platform calls for. On site, remotely with your tools, or on our bench.
Modern diesel trucks are run by their modules. When an engine control module (ECM), transmission control module (TCM) or body controller needs programming, the right software and the right process matter more than anything else. A flash that drops halfway through can leave a truck…
Read more →Mail-In ECM & TCM Service
Bench diagnostics, programming and recovery for engine and transmission modules, wherever the truck is.
Not every module problem needs a tech at the truck. When a module won't communicate, was bricked by a failed flash, or needs programming you can't do locally, mailing it to our bench is often the fastest and cheapest way to get running again. We…
Read more →Aftertreatment Repair
Regen problems, DEF faults and derates diagnosed and repaired properly, so the truck stays legal and stays on the road.
Aftertreatment problems cause more derates and unplanned downtime on modern diesels than almost anything else. The fix is rarely as simple as replacing the part the code names. A NOx efficiency fault can come from a bad sensor, poor DEF, a stuck doser, an exhaust…
Read more →DOT Inspections
Annual inspections done at your yard, with the repairs handled while we're there and the paperwork ready for your files.
Commercial motor vehicles in interstate service need a periodic inspection at least once every 12 months under the FMCSA rules in 49 CFR Part 396. The inspection has to be done by a qualified inspector, and the report has to be kept on file. Highlyfe…
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