JS Mobile Repair — Mobile Diesel Truck Repair in Round Rock, TX
Diesel Pickup Trucks
LIGHT DUTY
Ford · Chevy · Dodge
Diesel pickup repairs done right — at your location.
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Commercial Trucks
HEAVY DUTY
Freightliner · Kenworth · Peterbilt
Commercial truck breakdowns don't wait. Neither do we.
View ServicesWhat We Fix
Engine Diagnostics
Full scan tool diagnostics — fault codes, live data, root cause analysis.
DEF / DPF Service
Diesel exhaust fluid systems, DPF cleaning, regen issues resolved.
Brake Repair
Pads, rotors, calipers, and brake lines — mobile service, no shop needed.
Electrical & Wiring
Shorts, sensor failures, charging system faults diagnosed and fixed.
Engine Diagnostics
Detroit, Cummins, PACCAR — full ECM diagnostics and fault resolution.
DEF / Emissions Systems
SCR, DPF, EGR — we handle the full emissions system on Class 8 trucks.
Air Brake Systems
Slack adjusters, chambers, valves, and air lines serviced roadside.
Electrical & Lighting
DOT lighting, ABS faults, trailer connections, and wiring repairs.
Mobile Diesel Repair
Broke Down? We Come to You.
Don't wait for a tow. Call JS Mobile Repair and get back on the road faster.