Diagnose
We listen to the driver, scan every module and run real tests — pressure, voltage, leak-down — until the failure is proven. You get findings in plain language.
Back onthe roadby dawn. — 24/7 semi-truck and diesel repair in Wheeling, IL
Heavy-duty truck & trailer repair — mobile, 24/7, across Chicago’s north suburbs.
- Based in
- Wheeling, IL
- Trucks
- Class 6–8
- Service
- At your truck
24/7Breakdown response for owner-operators and fleets
§ 01 The shop that comes to you
Diagnose it right. Fix it once. Get the truck earning again.
OM Truck Repair LLC is a heavy-duty repair outfit built for the way trucking actually works around O’Hare and the Tri-State — trucks that can’t sit, drivers on a clock, and fleets that need answers instead of guesses.
We bring dealer-level diagnostics, air, welding and the right parts to your yard, your customer’s dock or the shoulder. Every job starts with a clear finding and a written estimate, and ends with a verified repair.
§ 02 The OM method
Three steps.
No guesswork.
Most comebacks happen because someone replaced a part instead of finding a cause. Our process is built so that doesn’t happen to your truck.
Repair
Approved work only, quality parts, correct torque and clean wiring. If a job needs more than a roadside fix, we say so up front and plan the downtime with you.
Verify
Codes cleared, systems retested and the truck road-tested or load-tested before we call it done. Your paperwork shows exactly what was done and why.
§ 03 What we fix
Thirteen ways
we keep you rolling
Engines to air brakes to aftertreatment — tractors, straight trucks and trailers. Every service has its own page with what’s included and how the job runs.
- 01Diesel Engine RepairLow power, blow-by, knocks, leaks and no-starts on heavy-duty diesels — diagnosed to the root cause and fixed right.
- 02Computer DiagnosticsDealer-level scan tools, live data and real testing to pin down check-engine lights, derates and intermittent faults.
- 03Air Brake RepairAir brake inspections, adjustments, chambers, valves, shoes, drums and air leaks — set up to stop straight and pass inspection.
- 04Preventive MaintenanceScheduled PM services — oil, filters, fluids, greasing and a full inspection — so small problems never become road calls.
- 05DOT InspectionsAnnual federal inspections for tractors and trailers, with repairs handled in the same visit when something doesn’t pass.
- 06Transmission & ClutchClutch replacement and adjustment, shifting problems, automated manuals, driveline and differential repairs.
- 07Electrical SystemsBatteries, starters, alternators, wiring harnesses, lighting and corrosion — traced with a meter, not a guess.
- 08DPF, DEF & EGRAftertreatment diagnostics, forced regens, DPF and DOC service, DEF dosing and EGR repairs to clear derates for good.
- 09Suspension & SteeringAir bags, leaf springs, shocks, bushings, kingpins, tie rods and steering gears — so the truck tracks straight and rides right.
- 10Cooling SystemOverheating, coolant leaks, radiators, charge air coolers, water pumps, thermostats and fan clutches.
- 11A/C & HeatingCab and sleeper A/C, heater and blower repairs — leak tests, compressors, condensers and recharges.
- 12Trailer Repair & WeldingTrailer brakes, lights, landing gear, doors, floors and structural welding for dry vans, reefers and flatbeds.
- 13Mobile & Roadside Repair24/7 breakdown response across the north suburbs — a fully equipped service truck that comes to your truck.
Roadside line open 24/7
We come
to you.
A fully equipped service truck with scan tools, air, power and welding. No-starts, air leaks, derates, lights, belts and hoses — most breakdowns are fixed where the truck sits.
Coverage · North & northwest suburbs
- Wheeling
- Buffalo Grove
- Prospect Heights
- Arlington Heights
- Northbrook
- Glenview
- Des Plaines
- Mount Prospect
- Palatine
- Elk Grove Village
- Schaumburg
- Rolling Meadows
13Service lines, each with a dedicated checklist
24/7Roadside and breakdown response
18North-suburban communities covered
7yrsKeeping Chicagoland trucks moving
§ 04 From the cab
Drivers talk.
Here’s what they say.
Owner-operators, company drivers and fleet managers across the north suburbs.
§ 05 For fleets
Your yard is
our service bay.
Scheduled PMs, DOT inspections and repairs on-site — with a checklist and a report for every unit, and priority response when one of yours goes down.
- PM programs by mileage, hours or calendar
- Batch DOT inspections at your yard or drop lot
- Priority breakdown dispatch for account customers
- Clear, unit-by-unit service records
§ 06 Questions
Straight
answers.
Still unsure? Call or send a request — we’ll tell you honestly whether it’s a roadside fix.
What kinds of trucks do you work on?
Class 6–8 diesel trucks: highway tractors, straight trucks, box trucks and vocational units, plus dry van, reefer and flatbed trailers. Call with your make and model if you are unsure.
Do you offer mobile service?
Yes. Most of our work is done on-site — at your yard, a customer’s dock, a truck stop or the roadside — using a fully equipped service truck.
Are you available 24/7?
Roadside and breakdown calls are answered 24 hours a day, 7 days a week. Scheduled service runs Monday through Saturday, 7:00 AM to 7:00 PM.
How do estimates work?
We diagnose first, then give you a written estimate. No work beyond the approved amount is done without your OK.
Do you work with fleets?
Yes. We offer scheduled yard service, PM programs, inspections and priority breakdown response for local fleets of every size.
Truck down?
We’re on it.
Tell us where the truck is and what it’s doing. We’ll give you a straight answer, an honest arrival time and a written estimate before any work starts.