Our Specialty
Diesel & Semi-Truck Repair
Powerstroke, Cummins and Duramax service, heavy-duty diagnostics, and DOT-ready repairs in Kent City. When your truck has to work for a living, it gets fixed right the first time.
What We Cover
Light-duty to heavy iron
From a ¾-ton work truck to a semi, diesel is what we do. We diagnose the real cause of power loss, smoke, hard starts and warning lights instead of throwing parts at it.
- Ford Powerstroke · Ram Cummins · GM Duramax service
- Heavy-duty diagnostics & drivability (power loss, smoke, codes)
- Turbos, injectors, fuel systems, glow plugs & cooling
- DOT-ready repairs & preventive maintenance for fleets
- Brakes, suspension & driveline for heavy trucks
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Why Bring It To Witt's
Downtime costs money. We get it right.
Real diesel know-how
Diesels aren't an afterthought here — they're the focus. You get a shop that actually understands compression-ignition, not a generalist guessing.
Root-cause diagnostics
We track down the actual fault so you fix it once. No parts-cannon, no comeback, no surprise second bill.
Straight talk
You hear what's wrong, what it'll take, and what it'll cost — before the wrench turns.
Diesel FAQ
Common questions
Got a different one? Call or text — happy to talk it through.
Which diesel engines do you service?
We service the major light- and medium-duty diesels — Ford Powerstroke, Dodge/Ram Cummins, and GM Duramax — plus heavy-duty truck and semi work.
Do you do DOT inspections and repairs?
Yes — we handle DOT-ready repairs and maintenance to keep your work truck compliant and on the road.
Can you diagnose a check-engine or power-loss issue on a diesel?
Yes. We run heavy-duty diesel diagnostics to find the real cause of power loss, smoke, or warning lights instead of throwing parts at it.
Keep It Running
Diesel acting up? Let's hear it.
Call or text and we'll get your truck looked at — honest answer, fair price.