Diesel Mechanic — Phoenix Metro Mobile Repair

What is a Mobile Diesel Mechanic?

A mobile diesel mechanic is a certified professional who specializes in diagnosing, repairing, and maintaining diesel engines and related systems — and comes directly to your location instead of requiring you to tow your vehicle to a shop.

Why Choose Mobile Over Traditional Shop Service?

Traditional Shop

• $500-$1,500 towing cost
• 2-5 day shop wait times
• Additional downtime costs
• Rental truck expenses

Mobile Mechanic

• Zero towing fees
• 30-60 minute response
• Same-day repairs
• Work continues

AZ Mobile Diesel Repair brings ASE-certified diesel technicians directly to your breakdown location across Phoenix Metro, equipped with professional diagnostic computers, complete tool sets, and an inventory of common diesel parts. Whether you're stranded on I-10, broken down at a job site, or dealing with a fleet vehicle issue at your yard, we come to you and perform repairs on-site.

What Sets Our Diesel Mechanics Apart

Certified professionals with the right tools and experience

ASE-Certified Technicians

All mechanics hold ASE certifications in diesel engine repair, electrical systems, brakes, and emissions. Continuous training keeps our team current with modern diesel technology.

Professional Diagnostic Tools

We carry DLA+ 2.0, Cummins Insite, CAT ET, and other OEM diagnostic software. Full laptop-based computer diagnostics performed on-site.

Parts Inventory On Board

Common diesel parts stocked on every truck: filters, belts, hoses, batteries, sensors, fuses, relays, and emergency repair supplies. Extended parts network for same-day sourcing.

All Major Diesel Brands

Experienced with Cummins ISX/ISB/ISL, Detroit DD13/DD15, PACCAR MX-13, Navistar MaxxForce, CAT C7/C13/C15, Mercedes-Benz OM, and more.

Services Our Diesel Mechanics Provide

Complete mobile diesel repair from diagnostics to major system overhauls

Engine Diagnostics & Repair

Computer diagnostics & fault code reading
ECM/ECU reprogramming & software updates
Turbocharger diagnosis & replacement
Sensor replacement (MAP, MAF, temp, pressure)

Fuel System Service

Fuel injector testing & replacement
Fuel pump repair & replacement
Fuel filter replacement
Fuel system bleeding (air in fuel)

Brakes & Air Systems

Air compressor replacement
Brake chamber & slack adjuster service
Wheel seal replacement
Air line repair & replacement

Electrical Systems

Alternator testing & replacement
Starter motor replacement
Battery testing & replacement
Wiring harness repair

Cooling & AC Systems

Radiator repair & replacement
Water pump replacement
Thermostat & coolant hose service
AC compressor & refrigerant service

DPF & Aftertreatment Systems

DPF cleaning & regeneration
DEF system diagnostics
NOx sensor replacement
SCR & EGR system service

Industries We Serve

Mobile diesel mechanics for all commercial and heavy-duty applications

Commercial Trucking

OTR fleets, regional carriers, owner-operators, Class 8 tractors, day cabs, sleepers

Delivery & Logistics

Amazon DSP, FedEx Ground, UPS, local delivery, last-mile, box trucks, step vans

Construction Equipment

Dump trucks, water trucks, excavators, loaders, rollers, heavy equipment

Waste Management

Garbage trucks, recycling trucks, roll-off trucks, refuse collection vehicles

Bus & Shuttle Services

School buses, charter buses, airport shuttles, tour buses, transit coaches

RV & Motorhomes

Class A motorhomes, Class C RVs, diesel pushers, touring coaches

Frequently Asked Questions

What qualifications do your diesel mechanics have?

All our diesel mechanics are ASE-certified with specialized training in modern diesel systems including electronic diagnostics, DPF/DEF systems, and emissions controls. Our team has years of experience working on Freightliner, Peterbilt, Kenworth, International, Mack, Volvo, and all major commercial diesel brands.

Do you bring all the tools and parts needed?

Yes. Our mobile service trucks are fully equipped with professional diagnostic computers (DLA+ 2.0, Cummins Insite, CAT ET), complete tool sets, and an inventory of common diesel parts. If we need a specialized part, we can source it quickly through our local supplier network.

How fast can a diesel mechanic get to my location?

Our typical response time is 30-60 minutes across Phoenix Metro, depending on your location and current traffic. We prioritize emergency breakdowns and highway safety situations.

What brands and types of diesel vehicles do you service?

We service all major diesel brands including Cummins, Detroit Diesel, PACCAR, Navistar, Caterpillar, and Mercedes-Benz diesel engines. We work on Class 4-8 commercial trucks, fleet vehicles, delivery vans, RVs, buses, and heavy equipment.

Can a mobile diesel mechanic perform major repairs?

Yes. Our mechanics can perform most major repairs on-site including engine diagnostics, turbocharger replacement, injector replacement, brake system overhauls, cooling system repairs, electrical system troubleshooting, and aftertreatment system service. Only extensive engine rebuilds or transmission overhauls require shop facilities.

Do you offer fleet maintenance services?

Absolutely. We provide scheduled preventive maintenance, multi-vehicle fleet accounts, priority dispatch for fleet customers, and on-site service at your yard or terminal. Contact us for fleet pricing.