Volvo Truck Repair in Austin, TX
VNLs turning highway miles into revenue — D13 diagnostics, aftertreatment work, and the chassis service that keeps them rolling.
Volvo service at an independent Austin shop
Volvo trucks are built around their own engine and transmission electronics, so diagnosis matters more than parts. We read the fault history, test the system it points at, and repair the cause — instead of throwing an expensive assembly at a code.
Volvo models and drivetrains we service
- VNL — Highway tractors with D11 and D13 power and full emissions systems.
- VNR & vocational — Regional and vocational trucks running local and short-haul routes.
- Volvo D11 / D13 — Engine diagnostics, EGR and turbo work, and aftertreatment faults.
- I-Shift transmissions — Clutch actuator, shift quality, and fault diagnosis on automated manuals.
What we see fail on Volvo
- Aftertreatment and DEF faults — Dosing valves, quality sensors, and SCR codes that end in a speed derate.
- EGR cooler and turbo issues — Coolant loss, soot loading, and lost boost on D-series engines.
- I-Shift complaints — Harsh or missed shifts and clutch actuator faults on automated manuals.
- Air and brake system wear — Leaks, dryers, and brake work found on inspection before it becomes a violation.
- Electrical and sensor faults — Intermittent problems that need live data and patience, not parts.
Volvo work we handle
- Volvo D11 and D13 engine diagnostics and repair
- Aftertreatment service — DPF, DEF, and SCR systems
- I-Shift diagnosis and driveline repair
- Air brake and air-system service
- Heavy-duty alignment and suspension work
- Annual DOT/FMCSA inspections
Modern Diesel is an independent, Christian, veteran-owned shop — we service Volvo trucks but are not a dealer or affiliated with the manufacturer. Warranty coverage on our work is set with your service advisor at the time of service.
Related services
Other makes we service
Peterbilt · Kenworth · Freightliner · Mack · International · Isuzu · Hino
Bring it to the shop
We work on Volvo at our shop at 2900 N FM 973, Austin, TX 78725, serving the Greater Austin Area (Travis, Bastrop, Williamson, Hays) — Austin, Del Valle, Manor, Elgin, Pflugerville, Round Rock, and the surrounding counties. Call 512-717-2777 and tell us what it's doing, or send us the details and we'll get back to you.
Common questions
Do you diagnose I-Shift transmission problems?
Yes. Automated manuals are electronic first and mechanical second, so we start with fault history and live data — clutch actuator position, shift requests, and driveline inputs — before recommending any transmission work.
My VNL derated on the highway. What now?
Most highway derates on these trucks come from the emissions system — DEF quality or dosing, SCR efficiency, or DPF loading. Get it in and we will pull the fault history, test the system, and repair the actual cause so it does not happen again next trip.
Are you a Volvo dealer?
No. Modern Diesel is an independent shop in Austin — we service Volvo trucks but are not affiliated with Volvo. For a lot of fleets that is the point: no service-writer layer between you and the technician working on the truck.
Ready when you are.
Drop by the shop at 2900 N FM 973, Austin, TX 78725 or call and we’ll get you scheduled.