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Diesel DoctorsTruck & Trailer Repair

Truck repair · Charlotte NC

Heavy-duty truck repair off I-85.

Engines, transmissions, brakes and electrical on every major make. Mobile when it can be, in our shop when it needs to be.

Call 704-921-2100Ask a question
Shop hours Mon to Fri
A Diesel Doctors technician on a creeper under a truck

In the bay

Every make. OEM parts.

Diesel Doctors is a Certified AMBEST Service Center with ASE-certified technicians. We work on medium and heavy-duty trucks from Freightliner, International, Kenworth, Peterbilt, Mack, Volvo, Western Star and Isuzu, and we use OEM parts.

The techs handle the big jobs, from engine swings and diesel engine replacement to clutches and transmissions, along with the everyday work that keeps a truck legal and earning.

Once the problem is diagnosed, you get the cost before we start. Written estimate, or a phone call if that's how you'd rather do it.

Engine and drivetrain

  • Diesel engine repair and replacement
  • Engine swings
  • Clutch and transmission
  • Axles and CV joints
  • Timing belts
  • Oil analysis
  • DPF cleaning and regen checks
  • Engine tuning

Chassis, cab and electrical

  • Brakes and wheel seals
  • Air leaks and air brakes
  • Air ride suspension bags
  • Shocks and struts
  • Steering columns
  • Alternators and radiators
  • A/C and heating
  • Electrical and batteries
Filters, fluids and parts stocked on shop shelves
Parts on the shelf
Truck batteries racked and ready in the shop
Batteries in stock
The main repair bay at Diesel Doctors
The main bay

Straight answers

Common questions

What makes do you work on?
Freightliner, International, Kenworth, Peterbilt, Mack, Volvo, Western Star, Isuzu and more, on medium and heavy-duty trucks.
Do you use OEM parts?
Yes. We use OEM parts on truck repairs.
Will I know the price first?
Yes. Once it's diagnosed, you get the repair cost before the work starts, written or over the phone.
Can you fix it at my location?
Some repairs, yes. Brake and clutch adjustments, electrical work and battery replacement often get done on site. Bigger jobs come into the shop.
Are your techs certified?
Diesel Doctors is a Certified AMBEST Service Center, and our shop has ASE-certified technicians.

Two ways in

Truck down right now? Call.

Call for road service, day or night. Send the shop a question about shop work, PMs, tires or alignment.

704-921-2100
Shop hours Mon to Fri

Ask a question

Send the shop a question. We do not take appointments.

Email us your question. For urgent road service, call 704-921-2100.

Email your question

acaldwell@dieseldoctorsnc.com

Same shop, same number

While you're here

24-Hour Road Service

Broke down on I-85 at 2 AM? We roll a service truck to you, tires and tools on board.

Learn more

Trailer Repair

Doors, floors, roofs, rails and side panels. ABS, air and lighting on vans, flatbeds and box trucks.

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Fleet PMs

A, B and C level PMs at your yard on your downtime, or on your company's own PM form.

Learn more