Diesel Repair Services in Houston, TX 77041

Name: Diesel Repair in Houston, TX 77041
Brand: A1 Auto Masters

At A1 Auto Masters, we specialize in expert diesel repair and diagnostics for pickup trucks, work vans, and small to medium-duty diesel vehicles. Our certified diesel technicians provide accurate troubleshooting, engine performance repair, fuel system service, turbo repair, EGR/DPF solutions, and full maintenance designed for Powerstroke, Duramax, Cummins, and other light/medium-duty diesel platforms.
Proudly serving Houston, Katy, Jersey Village, Fairbanks, and surrounding areas, we deliver honest pricing, fast turnaround times, and repairs you can trust.

We Specialize in Pickup & Medium-Duty Diesel Vehicles

Ford Powerstroke Repair

6.0L • 6.4L • 6.7L Powerstroke diagnostics, injectors, high-pressure fuel systems, turbo issues, glow plug systems & more.

GM Duramax Repair

LB7 • LLY • LBZ • LMM • LML • L5P routines including injector service, fuel system repair, turbo diagnostics, DEF system troubleshooting & performance restoration.

Dodge Ram Cummins Repair

5.9L & 6.7L Cummins engine diagnostics, injectors, turbo systems, fuel delivery, sensors, EGR/DPF systems, and drivability issues.

Small & Medium Duty Diesel Trucks

Box trucks, service trucks, fleet diesel vehicles, and work vans.

Diesel Repair & Maintenance Services

Diesel Diagnostics

Accurate troubleshooting using advanced diagnostic equipment to pinpoint engine, fuel, turbo, sensor, or emission system issues.

Engine Repair & Performance

Compression issues, fuel delivery, power loss, smoke problems, misfires, timing, and rough running engines — repaired correctly the first time.

Fuel System Service

Injectors, high-pressure pumps, lift pumps, fuel filters, water contamination, low-pressure issues, and diesel fuel system cleaning.

Turbocharger Repair

Turbo replacement, boost leaks, actuator problems, low boost, overspeeding, and turbo performance issues.

EGR & DPF System Repair

EGR valves, coolers, clogged DPF filters, regen issues, DEF components, and emission system troubleshooting.

Cooling System Repair

Radiators, thermostats, water pumps, coolant leaks, overheating, and diesel-specific cooling system needs.

Transmission & Drivetrain for Diesel Trucks

Automatic and manual transmission repair, clutch systems, driveline vibrations, and towing/heavy use performance issues.

Diesel Preventive Maintenance

Oil changes, filters, belts, fluids, tire rotation, alignment, brake service, and routine checks to extend engine life and prevent breakdowns.

Fleet Diesel Services

If your business relies on diesel vehicles, we keep your fleet running. We service:

Contractor trucks
Delivery vehicles
Work vans
Medium-duty fleets
Tradesmen pickups
Service trucks

Fast turnaround, priority fleet scheduling, and maintenance plans available.

Sprinter Diesel Repair

We repair Mercedes Sprinter diesel vans, including turbo issues, DEF/DPF problems, injector replacement, sensor faults, cooling systems, and transmission concerns.

Why Diesel Owners Trust A1 Auto Masters

✔ Certified diesel technicians

✔ Diagnostic equipment for all major diesel platforms

✔ Honest pricing with no hidden fees

✔ Fast turnaround to minimize downtime

✔ High-quality OEM & OEM-equivalent parts

✔ Transparent communication

✔ Proven results in Houston’s diesel community

Automotive Repair