On Site Diesel Repair Done Right
When your rig goes down on US-101, I-280, or the busy SR-237 logistics corridor, Dallas Heavy Duty Service brings the shop to you. Our mobile truck repair sends a fully equipped service truck straight to your location, stocked with common diesel parts, fluids, ECM scan tools, and diagnostic equipment. Instead of waiting on a tow, you get a qualified technician on scene, assessing the problem and getting your truck moving again fast.
Mobile repair means less downtime and fewer operational disruptions for Santa Clara operators hauling electronics, semiconductors, and renewable energy freight across Silicon Valley. Whether you run a single truck or manage a fleet, our technicians travel directly to your yard, a shoulder, a rest area, or a customer lot. We triage the issue, complete safe roadside repairs, and stabilize the vehicle for towing only when a major job truly demands an in shop bay.
What We Fix On Site For You
A large share of breakdowns never need a shop. We handle no start and electrical issues on location, including dead batteries, battery replacements, alternator faults, starter swaps, loose or damaged connections, basic charging system problems, and wiring faults. Our service trucks carry the tools and parts to diagnose and repair these common failures right where your rig sits, keeping freight schedules intact across the region.
Air and brake system trouble gets resolved roadside too. We address air leaks, brake chamber replacements, airline problems, slack adjuster concerns, and valve and fitting issues. Cooling system work is another strength, including hose replacements, clamp failures, coolant leaks, belt issues, and overheating caused by serviceable external components. Fuel delivery, priming, and tire changes or patching round out what we routinely complete on scene.
California emissions compliance is central to what we do. Our techs are conversant with DPF, DEF, EGR, and SCR systems, so we can troubleshoot aftertreatment faults, DEF injector problems, and emissions warning lights that can pull a truck out of service during a DOT roadside inspection. Keeping these systems functioning properly is essential for staying legal under CARB's Clean Truck Check on California roads.
When A Job Requires The Shop
We are honest about what belongs in a bay. Major engine work, transmission repairs, structural damage, heavy duty suspension jobs, and extensive axle work generally require shop equipment and heavy lifting. When that is the case, we stabilize your truck first, then recommend towing to a full service facility so the repair is done safely and correctly.
Most mobile diagnostics take 30 to 60 minutes, which saves hours of shop time and eliminates unnecessary tows. Using OEM grade scan tools, our technicians pinpoint faults quickly and provide digital reports, repair logs, and PM records. Fleet managers in Santa Clara rely on that documentation for compliance, insurance, and tracking the health of every unit in their operation.
Typical repair windows help you plan. Electrical and starting work often runs 1 to 2 hours, cooling system repairs 1 to 3 hours, and aftertreatment or emission repairs 1 to 4 hours. Turbocharger service, including rebuilds, boost leak testing, and wastegate actuator replacement, usually takes 2 to 4 hours depending on the unit and access.
Santa Clara sits at the heart of Silicon Valley's logistics network, and that concentration of freight is exactly why reliable mobile repair matters here. The area moves electronics, semiconductors, computer hardware, consumer gadgets, and renewable energy equipment like solar panels and batteries. With 383 DOT licensed trucking companies operating locally, the roads stay busy, and a single breakdown can stall a tight delivery window. We serve carriers large and small, from owner operators to fleets like those running dozens of vehicles across the valley, keeping diesel trucks productive every day.
Breakdowns cluster where traffic and freight converge. We respond along US-101, I-280, I-880, I-680, and I-580, all active commercial corridors, plus the SR-237 artery where response times are quickest. When US-101 commuter traffic peaks, we plan routes accordingly to reach you as fast as conditions allow. Whether you are stranded on a shoulder, parked at a distribution yard, or stuck at a customer site near the zip codes 95050, 95051, 95054, or 95053, our mobile units come to you.

