Licensed & Insured · Columbia, MD · 24/7 dispatch · (240) 780-8691
Mobile Diesel Mechanic in Columbia, MD
Truck derated, won’t start, or stopped on the shoulder near Columbia? Priority Towing and Recovery sends a mobile diesel mechanic to commercial trucks at the roadside, at your yard, or at a job site in Columbia and Howard County. Dispatch is open 24/7. Call (240) 780-8691.
What a mobile diesel mechanic in Columbia can handle
Commercial diesel trucks only — tractors, reefers, box trucks, and medium-duty equipment. This is not passenger-car auto repair.
- DPF, DEF & derate faults — a truck held in reduced power, a regen that will not finish, or DEF/SCR codes. We read the codes, repair the cause, and run a forced regeneration or derate clear when the unit can be made safe and legal on site. See DPF derate repair.
- No-start and limp mode — cranks but won’t fire, will not crank, or drops into limp mode. We check batteries, starters, charging, fuel supply, and active fault codes.
- Roadside repairs — breakdowns on the shoulder or in a lot, from sensors and hoses to components that stopped the truck. See truck road service.
- Electrical — dead batteries, jump starts, alternators, starters, wiring, and lighting faults.
- Brakes & air system — air leaks, brake adjustment, and air-system problems checked where the truck sits, which can avoid an unnecessary tow.
- Fluids — oil, coolant, and DEF issues, plus fuel-system problems that stall a truck.
Repair and restore only: we fix emissions systems properly and do not do emissions deletes or delete tuning.
Truck down in Columbia?
Tell dispatch the truck, where it is, and what it is doing.
Columbia-area routes we cover
Our Village Center Drive location supports truck service along the routes drivers use through and around Columbia:
- I-95 — the north-south freight corridor between Baltimore and Washington.
- MD-32 — connects Columbia with I-95 and I-70.
- US-29 — runs through Columbia toward Ellicott City, Silver Spring, and the Capital Beltway.
- I-70 — the western Howard County approach toward Frederick and points west.
Not on one of these routes? Call anyway. We also work yards and job sites around Columbia, Ellicott City, Laurel, and the rest of the Priority service area.
How to get a mobile diesel mechanic in Columbia
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Call dispatch
Call (240) 780-8691 any hour. Give the truck make and model, symptoms, and any fault codes or dash lights.
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Share your location
Give the road and nearest exit or mile marker, or the yard address, and say whether the truck is off the travel lane.
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Repair or hand off
The mechanic diagnoses and repairs in place when it is safe. If not, the same ticket moves to heavy-duty towing and recovery or to the Randallstown shop.
If the truck is blocking traffic or anyone is in danger, call 911 first, then dispatch.
Priority Towing and Recovery
Columbia location
5305 Village Center Drive, Suite 201
Columbia, MD 21044
Dispatch open 24/7
(240) 780-8691- Licensed and insured
- Accepts EFS, ComChek, and T-Check
- 47 reviews on PreferredMechanic
- Shop diesel repair: Randallstown only
There is no diesel repair bay at the Columbia address — it is a dispatch and mobile diesel location. Shop work goes to Randallstown (9325 Liberty Rd).
Related: mobile diesel mechanic · DPF derate repair · truck road service · heavy duty towing & recovery · Columbia towing
Diesel truck guides: resources hub · what a DPF derate means · diesel cranks but won’t start · DPF light flashing
Mobile diesel mechanic in Columbia, MD — FAQ
Do you come to my truck in Columbia?
Yes. A mobile diesel mechanic works on commercial trucks at the roadside, your yard, or a job site in Columbia and Howard County. Call (240) 780-8691.
Can you fix a DPF derate on the shoulder?
Often, yes. We read the codes, find why the DPF, DEF or SCR system is limiting the truck, and run a forced regen or derate clear when the unit can be made safe and legal on site. We do not do deletes or delete tuning.
My diesel will not start. What should I tell dispatch?
Tell dispatch whether it cranks, which dash lights or codes are showing, and whether the batteries were checked or jumped.
Do you work on cars or pickups?
No. We service commercial diesel trucks only: tractors, reefers, box trucks, and medium-duty diesels. We do not offer passenger-car auto repair.
Is there a repair shop at the Columbia address?
No. Columbia is a dispatch and mobile diesel location. Shop diesel repair is Randallstown only, at 9325 Liberty Rd.
What if the truck cannot be repaired on site?
The same dispatcher can send heavy-duty towing and recovery or move the truck to the Randallstown shop.
What payment methods do you accept?
We accept EFS, ComChek, and T-Check.
Are you open nights and weekends?
Yes. Dispatch is 24/7, including nights, weekends, and holidays.
Call for a mobile diesel mechanic · Columbia, MD
One call for the diesel mechanic and heavy recovery.