AZ Mobile Diesel Repair provides full-service mobile diesel repair at your location across Phoenix Metro. From job sites and fleet yards to truck stops and roadside breakdowns, we bring the tools, diagnostics, and parts to get you back in service quickly.
Our team handles medium-duty and heavy-duty diesel trucks, trailers, and diesel-powered equipment with response times that typically range from 25 to 60 minutes. Open 7 AM - 7 PM daily.
Complete On-Site Diesel Services
Engine Diagnostics & Repair
Fault-code scans, no-start diagnosis, sensor replacement, and performance troubleshooting with OEM-level diagnostic tools.
Brakes & Air Systems
Air leaks, chambers, valves, slack adjusters, and braking-system repairs to keep your truck safe and DOT-compliant.
Electrical & Batteries
Battery testing and replacement, starter and alternator issues, lighting faults, and wiring diagnostics on-site.
A/C & Cooling Systems
Overheating diagnostics, radiator and hose repairs, thermostat service, and A/C performance repairs for Arizona heat.
Fuel System Repair
Fuel delivery diagnostics, injector issues, filter service, and contamination-related repairs to restore power and reliability.
Hydraulics
Hydraulic hose service, cylinder and fitting repairs, and fluid-related fixes for work trucks and equipment.
Suspension & Steering
Steering play, ride-quality issues, suspension component wear, and drivability diagnostics performed where the truck sits.
DPF / Aftertreatment
DPF, DEF, and aftertreatment diagnostics including regen support and fault isolation for derate-related conditions.
Why Choose Mobile Repair?
No Tow Costs
Avoid expensive towing and shop wait times. We come directly to your truck, trailer, or equipment.
Less Downtime
Fast dispatch and on-site repairs help keep your schedule moving and reduce lost revenue from downtime.
On-Site Convenience
From fleet lots to loading docks and roadside shoulders, we repair where your truck is parked.
Same Shop-Grade Quality
Our mobile trucks carry professional tools and diagnostic equipment to deliver reliable, high-quality repairs.
Our Service Process
Call Us
Call (602) 456-9071 and share your location, truck details, and symptoms.
Dispatch
We dispatch the nearest mobile diesel technician and provide an estimated arrival window.
Diagnose
We perform on-site diagnostics and provide a clear quote before work begins.
Repair & Back on the Road
We complete the repair on-site whenever possible and verify operation before you roll out.
