What We Fix
Complete diesel repair for owner-operators and fleets passing through Laredo
Engine & Powertrain
- Complete engine diagnostics
- Fuel system & injector service
- DPF/EGR/aftertreatment repair
- Turbocharger rebuild
- Oil & fluid leak repair
Cummins, Detroit, CAT, PACCAR specialists.
Brake & Air Brake Systems
- Air brake leak repair
- Brake adjustment & calibration
- ABS diagnostics & repair
- Brake drum/rotor service
- S-cam & slack adjuster
#1 DOT violation — we make sure yours pass.
Electrical & Lighting
- Battery & starter diagnostics
- Alternator replacement
- Full electrical troubleshooting
- DOT lighting compliance
- ABS indicator repair
OEM diagnostic tools for every platform.
DEF & Coolant Systems
- DEF coolant line repair
- DEF pump & injector service
- Coolant leak diagnosis
- Radiator & water pump repair
- Thermostat replacement
DEF system experts — get back on the road fast.
Preventive Maintenance
- PM Service packages
- Oil & filter changes
- Chassis lubrication
- Fluid flushes
- Belt & hose inspection
Keep your truck earning, not sitting idle.
DOT Inspection & Compliance
- Annual DOT inspections
- Pre-trip inspection prep
- CSA score consultation
- Violation repair & re-inspection
Critical for cross-border truckers on the I-35.
Computer
Diagnostics
OEM-level diagnostic scanners that pinpoint issues fast — saving you time and money on unnecessary repairs. We read, diagnose, and fix it right the first time.
Full ECM/ECU Scanning
Read & clear fault codes across engine, transmission, ABS, and aftertreatment
Live Data Monitoring
Real-time sensor readings: boost pressure, EGT, fuel rail, DEF quality
DPF Regen & Reset
Force regen, reset aftertreatment counters, clear derate conditions
Parameter Programming
Speed limiters, idle shutdown, PTO config, injector calibration
Accurate Diagnosis = Lower Cost
No guesswork. We find the exact problem so you only pay for what needs fixing.
Why Choose Martinez
Best Prices in Laredo
Honest, affordable pricing. Our customers consistently say we beat competitor quotes by hundreds.
4.8 Star Rated
38 Google reviews. Truckers trust Martinez for quality work and fair treatment.
Fast Turnaround
Other shops say 3 days? We get it done in 48 hours or less. Your truck earns when it's rolling.
Se Habla Español
Fully bilingual. Serving the Laredo & Nuevo Laredo trucking community.
Brands We Service
Truck Manufacturers
Engine & Component OEMs
Our Shop
What Truckers Say
Based on 38 Google Reviews
“Mr Martinez and his team is great and very professional. I had a problem with my fuel pump — went to 3 other places. One said $3,600, another $3,800, and they said it would take 3 days. But Mr Martinez got it done faster and at a much better price.”
“Highly recommend this shop to truckers. Martinez was very friendly and took care of my truck which had a DEF coolant line issue. He even went out to get the parts if needed. Very reasonable on repair price. Will definitely come back.”
“Call Martinez the owner — he will take care of you. Great price and service. Very happy I did business with him.”
Contact Us
Phone
(956) 334-2143Address
8001 San Dario Ave, Laredo, TX 78045
Behind the warehouse — check with security at gate, call Martinez first
Hours
Monday – Friday: 9:00 AM – 6:00 PM
Saturday: 9:00 AM – 2:00 PM
Sunday: Closed