Service · Repair
Diesel Truck Repair in Jackson, MS
If your diesel truck is sitting and not making money, the worst place it can sit is another shop's parking lot. Wilkerson's diesel truck repair in Jackson, MS gets eyes on the truck same day or next day — not in three weeks. We tell you what's wrong, what it'll cost, and we put that in writing before we touch a wrench.
We service Class 7–8 tractors, day cabs, dump trucks, box trucks, service trucks, diesel pickups, RVs, and buses across the Cummins, Detroit Diesel, CAT, Paccar, International, Volvo, Duramax, and Power Stroke families. Engine work, drivetrain, electrical, cooling, fuel system, after-treatment — if it's on a working diesel truck, we work on it.
Owner-operators and small fleets come to us when the cheap shop down the road didn't fix it. We're not the cheapest in Jackson. We're the shop you call second — and our name goes on the invoice.
What's included
Everything we do on a diesel truck repair visit.
Same- or next-day diagnosis
We get eyes on the truck the same day in most cases — full fault-code pull, road test if drivable, written diagnosis with a price.
Engine repair
Hard starts, no-starts, power loss, oil pressure, blow-by, head gaskets, injectors, turbos, head and cam work. PM to inframe.
Drivetrain & driveline
Clutch, U-joints, differentials, axle work. Vibration, whine, and shift-quality complaints.
Electrical & charging
Alternators, starters, batteries, harness, lighting, ECM/PCM faults. We chase the wire, not the symptom.
Cooling system
Radiators, water pumps, thermostats, fan clutches, EGR cooler issues, overheat diagnosis.
Fuel system
Lift pumps, injectors, common-rail diagnostics, fuel filter and water-separator work.
After-treatment & emissions
DEF, SCR, DPF, NOx and DEF sensors, EGR. Don't run derated.
Air & brake systems
Air leaks, dryers, valves, foundation brakes, chambers, ABS faults.
Not sure the math is worth it? Use our downtime calculator to see what one day off the road costs you.
Run the numbersBrands we work on
If it runs diesel, we've probably worked on it.
These are the ones we see most — not the whole list. If it runs on diesel, we service it. Don't see yours? Call us — odds are we've already worked on it.
Engines
- Cummins
- Detroit Diesel
- CAT
- Paccar
- International
- Volvo
- Mack
- Duramax
- Power Stroke
- Hino
- Isuzu
Chassis
- Freightliner
- Peterbilt
- Kenworth
- Mack
- Western Star
- Volvo
- International
- Ford
- Ram
- GMC
- Chevrolet
- Hino
- Isuzu
Pricing & estimates
No surprises on the invoice.
Diagnostic starts with a fault-code pull and visual on the truck. You get a written estimate before any billable work begins — no surprises on the invoice. Repairs covered by our own written warranty — we stand behind every covered repair.
Our process
No surprises between the call and the invoice.
Four steps from the first call to the keys back in your hand. No mystery, no upsell theater.
- 01/Step
Call us
A real person answers the phone. We'll tell you straight whether your job is in scope and book you in if it is.
- 02/Step
Written estimate
We diagnose and write up the work before we touch anything billable. You see the price and the parts before you approve.
- 03/Step
You approve
Nothing happens without a green light from you. If we find more during the repair, we stop and call before we keep going.
- 04/Step
Repair + written warranty
Same name on the invoice every time. Our own written warranty on covered work — and the family promise behind it.
Why Wilkerson's
Three reasons people keep coming back.
- Diagnosis
- Same day
- Warranty
- Written
- Family shop
- 20+ years
Other shops let your truck sit two and three weeks. We don't. Same- or next-day eyes on the truck, in writing.
Our own written warranty on every covered repair. If a repair fails inside the term, we make it right — with a direct line to the general manager, no runaround.
Same Wilkerson family on the phone every time — and you've got a direct line to the general manager if anything escalates.
Frequently asked
What people ask before they bring the truck in.
Tap any question to expand the answer.
Most of the time, yes. We aim for same- or next-day diagnosis on every truck that comes in. Simple repairs (oil, filters, air leaks, brakes, wheel seals) often get done the same day. Bigger work like injectors, head gaskets, or transmission internals takes longer — but you'll have a written estimate and timeline before we start.
Roughly 40% of diesel engine issues are misdiagnosed by non-specialized mechanics. We're a heavy-duty diesel shop with certified techs and full diagnostic equipment, not a general auto garage. We stand behind our diagnosis — if we get it wrong, we make it right.
Yes. We don't turn a wrench on billable repair work without your written approval. If we find more during the repair, we stop and call before continuing. No surprise lines on the invoice.
Cummins, Detroit Diesel, CAT, Paccar, International, Volvo on the engine side. Duramax and Power Stroke on diesel pickups. Hino and Isuzu medium-duty. Chassis-side: Freightliner, Peterbilt, Kenworth, Mack, Western Star, Volvo, International, Ford, Ram. If your brand isn't listed, call — odds are we've still seen it.
Most of our work is in-shop — Mon–Fri 7am–5pm and Saturday 7am–noon. We do offer daytime roadside tire service and light mechanic work; call ahead to check availability. We're staffing up toward 24/7 coverage, but for now an off-hours breakdown is best brought to the shop and we'll get on it first thing.
Most of the time, yes. We aim for same- or next-day diagnosis on every truck that comes in. Simple repairs (oil, filters, air leaks, brakes, wheel seals) often get done the same day. Bigger work like injectors, head gaskets, or transmission internals takes longer — but you'll have a written estimate and timeline before we start.
Yes. We don't turn a wrench on billable repair work without your written approval. If we find more during the repair, we stop and call before continuing. No surprise lines on the invoice.
Most of our work is in-shop — Mon–Fri 7am–5pm and Saturday 7am–noon. We do offer daytime roadside tire service and light mechanic work; call ahead to check availability. We're staffing up toward 24/7 coverage, but for now an off-hours breakdown is best brought to the shop and we'll get on it first thing.
Roughly 40% of diesel engine issues are misdiagnosed by non-specialized mechanics. We're a heavy-duty diesel shop with certified techs and full diagnostic equipment, not a general auto garage. We stand behind our diagnosis — if we get it wrong, we make it right.
Cummins, Detroit Diesel, CAT, Paccar, International, Volvo on the engine side. Duramax and Power Stroke on diesel pickups. Hino and Isuzu medium-duty. Chassis-side: Freightliner, Peterbilt, Kenworth, Mack, Western Star, Volvo, International, Ford, Ram. If your brand isn't listed, call — odds are we've still seen it.
Diesel truck repair done right. Call us.
Mon–Fri · 7am–5pm · Saturday · 7am–12pm