Emergency roadside for trucks and trailers, day or night.
Road service
Seguin · east of Schertz
Mobile truck repair in Seguin
Hennessy's Diesel Road Service provides 24/7 mobile truck repair and roadside diesel service in Seguin from our Schertz base along the US-90 / I-10 corridor.
New Braunfels and Schertz are the closer cities we serve on the same mobile diesel repair service runs.
Services we offer
The same full range of 24/7 mobile truck and trailer repair we offer from Schertz is available here.
Fault codes and on-site checks.
DiagnosticsAir leaks, brakes, and related systems.
Air & brakeField engine work (external/systems). No internal rebuilds.
Engine repairAfter-treatment and forced regen.
Forced regenerationBatteries, charging, wiring, and lights.
Electrical & lightingOverheats, hoses, and cooling issues.
Cooling systemFilters, leaks, and fuel-side problems.
Fuel systemLights, air, landing gear, and doors.
Trailer repairServices: 24/7 Road Service · Computer Diagnostics · Air & Brake · Engine Repair · Forced Regeneration · Electrical & Lighting · Cooling System · Fuel System · Trailer Repair
Home base and full overview: Hennessy's Diesel Road Service.