El Flaco
Truck & Trailer Repair
24/7 diesel repair serving Los Fresnos, Brownsville & the Rio Grande Valley. Fast, affordable, honest.
What We Fix
Complete truck & trailer repair — engine to kingpin
⚙️ Engine & Powertrain
- Complete engine overhaul
- Fuel system & injectors
- DPF/EGR/aftertreatment
- Turbocharger rebuild
- Transmission & clutch
Cummins, Detroit, CAT, PACCAR.
🛑 Brakes & Air Brakes
- Air brake leak repair
- Brake adjustment & calibration
- ABS diagnostics
- Drum/rotor service
- S-cam & slack adjuster
#1 DOT violation — we fix it right.
⚡ Electrical & Lighting
- Battery & starter diagnostics
- Alternator replacement
- Full wiring troubleshooting
- DOT lighting compliance
- Headlamp restoration
OEM-level diagnostic tools.
🚚 Trailer Repair SPECIALTY
- Landing gear repair
- Kingpin & fifth wheel
- Trailer doors & alignment
- Trailer lighting & wiring
- Tandem slider & crossmember
Flatbed, reefer, dry van, tanker.
🛆 Tire Services
- Tire inspection & replacement
- Roadside tire change
- TPMS diagnostics
- Emergency blowout
- DOT tread verification
Fast mobile tire service.
📋 PM & DOT Inspections
- PM Service packages
- Oil & filter changes
- Annual DOT inspections
- CSA score consultation
- Violation repair
Pass DOT first time or re-inspect free.
24/7 Emergency & Roadside
Mobile repair • Towing coordination • Tire blowouts • Jump starts • On-site diagnostics
JPRO & OEM Software
On-site diagnostics — no tow needed.
Why El Flaco
Perfect 5.0
38 reviews, every single one 5 stars.
Open 24/7
3 AM breakdown? We answer.
Fast & Fair
2-hour response, honest pricing.
Bilingual
Se Habla Español.
Brands We Service
Truck Manufacturers
Engine & Component OEMs
Our Work
Truckers Love Us
38 Google Reviews — every single one is 5 stars
“I was stuck on the road and contacted him — within 2 hours I was rolling again. Fast, reliable, affordable. I recommend him to anybody.”
“Excellent service! Thank you for doing an excellent job repairing my Kenworth T680.”
“Fast and decent prices. Gets to the problem and explains the process and what needs to be done.”
