Expert Mechanics in Trinidad, CO
At ER Auto & Diesel, LLC, we provide expert in-shop and automotive repair services for everything from passenger vehicles to heavy-duty trucks and equipment. Our family-owned business delivers reliable, high-quality repairs with the convenience you need—whether you’re at our Trinidad shop or on the road. Explore our full range of services below.
Commercial Truck/Trailer Repairs
- We specialize in expert commercial truck and trailer repairs in Trinidad, CO and beyond.
- From brake systems to suspension and electrical issues, we keep your rig road-ready.
- Trust our certified team to minimize downtime and maximize performance.
- We work on Freightliner, Peterbilt, Kenworth & International trucks.
Coolant leaks, tire replacement, air bags, brakes, radiator replacement, forced regens, DEF system repair, DOT Inspections, alternator replacement & more!
Bus Repairs
- Our shop handles all types of bus repairs, from school buses to shuttle fleets.
- We provide fast, reliable diagnostics and service to ensure safe passenger transport.
- Servicing Southern Colorado and Northern New Mexico with precision and care.
Tire replacement, Inspections, electrical repair, brakes, coolant leaks, oil changes, check engine lights, emission systems.
Auto & Diesel Truck Repairs
- Whether it’s your daily driver or work truck, we offer full-service auto and truck repairs.
- From engines to exhaust, our ASE-certified techs handle it all under one roof.
- Honest diagnostics, quality parts, and dependable results every time.
Cummins, Powerstroke & Duramax Repair, EGR cleaning/replacement, emission system service, head gasket replacement, engine replacement, turbo & fuel injector replacement, check engine light diagnosis & repair, brakes, tune ups & more!
RV Repairs
- We provide complete RV repairs including mechanical, electrical, and chassis service.
- Whether you’re passing through or parked locally, we’ll get you road-ready fast.
- RV repair available across Trinidad and surrounding areas.
Coolant leaks, tire replacement, forced regens, radiator replacement, air conditioning, oil changes, brakes, check engine lights, and emission systems.
Heavy Equipment Repairs
- From loaders to excavators, we offer heavy equipment repairs on-site or at our shop.
- Minimize project delays with fast service and repair options.
- We proudly support local contractors and construction teams with expert care.
We service CAT, John Deere, Case, Komatsu, etc. Trust us for engine repair, hydraulic hose replacement, full services, tires, brakes & more!
Auto Repair Service
- Stranded on the road? Our repair team comes to you wherever you are.
- We service diesel trucks, trailers, heavy equipment, and more—day or night.
- Fast response throughout Southern Colorado and Northern New Mexico.
Electrical Diagnostics
- Get to the root of vehicle issues with advanced electrical diagnostics.
- We use top-tier equipment to detect shorts, sensor issues, battery drain, and more.
- Serving light-duty to heavy-duty vehicles with expert troubleshooting.
DOT Inspections
- Stay compliant with thorough DOT inspections for trucks, trailers, and commercial fleets.
- We inspect brakes, lights, tires, and all safety systems to ensure road readiness.
- Book in-shop or DOT services—fast, reliable, and fully certified.
Fleet Repairs
- Keep your fleet running smoothly with routine and emergency fleet repairs.
- We offer tailored maintenance plans, quick turnaround, and priority scheduling.
- Serving commercial fleets across Trinidad and surrounding areas.
Oil Change/Inspections
- Quick, high-quality oil changes for cars, trucks, and diesel engines.
- Each service includes a full multipoint inspection to ensure peak performance.
- Schedule auto oil change and vehicle inspection at our shop today.
Computer Diagnostics
- Modern vehicles require expert-level computer diagnostics to identify complex issues.
- We scan all systems including engine, transmission, and emissions.
- Accurate troubleshooting means quicker repairs and lower costs.
Fuel Delivery
- Out of fuel? We’ve got your back with fast fuel delivery services.
- Whether you’re roadside or on a job site, we deliver diesel or gas on the spot.
- Serving drivers and operators throughout Trinidad and surrounding towns.
Tires
- We provide tire repair, rotation, replacement, and tire services.
- From passenger cars to commercial rigs, we carry top brands and fast installation.
- Stay safe and on the road with expert tire care at ER Auto & Diesel.
Vehicle Maintenance
- Complete vehicle maintenance for cars, trucks, and diesel engines.
- Oil changes, tire rotations, brakes, inspections, and more—done right every time.
- Visit our shop in Trinidad or schedule our service today.
Check Engine Light
Modern vehicles rely on complex systems—our expert team uses advanced diagnostics to pinpoint issues accurately. Count on ER Auto & Diesel to fix it right the first time, every time.
Oil Analysis Testing
- Detect engine wear, contaminants and fluid performance issues before they become major problems.
- Every service includes a comprehensive digital vehicle inspection for every vehicle.
- Visit our shop or book reliable auto repair services in Trinidad.
Commercial Truck/Trailer Repairs
- We specialize in expert commercial truck and trailer repairs in Trinidad, CO and beyond.
- From brake systems to suspension and electrical issues, we keep your rig road-ready.
- Trust our certified team to minimize downtime and maximize performance.
- We work on Freightliner, Peterbilt, Kenworth & International trucks.
Coolant leaks, tire replacement, air bags, brakes, radiator replacement, forced regens, DEF system repair, DOT Inspections, alternator replacement & more!
Bus Repairs
- Our shop handles all types of bus repairs, from school buses to shuttle fleets.
- We provide fast, reliable diagnostics and service to ensure safe passenger transport.
- Servicing Southern Colorado and Northern New Mexico with precision and care.
Tire replacement, Inspections, electrical repair, brakes, coolant leaks, oil changes, check engine lights, emission systems.
Auto & Truck Repairs
- Whether it’s your daily driver or work truck, we offer full-service auto and truck repairs.
- From engines to exhaust, our ASE-certified techs handle it all under one roof.
- Honest diagnostics, quality parts, and dependable results every time.
- Cummins, Powerstroke & Duramax Repair, EGR cleaning/replacement, emission system service, head gasket replacement, engine replacement, turbo & fuel injector replacement, check engine light diagnosis & repair, brakes, tune ups & more!
RV Repairs
- We provide complete RV repairs including mechanical, electrical, and chassis service.
- Whether you’re passing through or parked locally, we’ll get you road-ready fast.
- RV repair available across Trinidad and surrounding areas.
Coolant leaks, tire replacement, forced regens, radiator replacement, air conditioning, oil changes, brakes, check engine lights, and emission systems.
Heavy Equipment Repairs
- From loaders to excavators, we offer heavy equipment repairs on-site or at our shop.
- Minimize project delays with fast service and repair options.
- We proudly support local contractors and construction teams with expert care.
We service CAT, John Deere, Case, Komatsu, etc. Trust us for engine repair, hydraulic hose replacement, full services, tires, brakes & more!
Auto Repair Service
- Stranded on the road? Our repair team comes to you wherever you are.
- We service diesel trucks, trailers, heavy equipment, and more—day or night.
- Fast response throughout Southern Colorado and Northern New Mexico.
Electrical Diagnostics
- Get to the root of vehicle issues with advanced electrical diagnostics.
- We use top-tier equipment to detect shorts, sensor issues, battery drain, and more.
- Serving light-duty to heavy-duty vehicles with expert troubleshooting.
DOT Inspections
- Stay compliant with thorough DOT inspections for trucks, trailers, and commercial fleets.
- We inspect brakes, lights, tires, and all safety systems to ensure road readiness.
- Book in-shop or DOT services—fast, reliable, and fully certified.
Fleet Repairs
- Keep your fleet running smoothly with routine and emergency fleet repairs.
- We offer tailored maintenance plans, quick turnaround, and priority scheduling.
- Serving commercial fleets across Trinidad and surrounding areas.
Oil Change/Inspections
- Quick, high-quality oil changes for cars, trucks, and diesel engines.
- Each service includes a full multipoint inspection to ensure peak performance.
Schedule auto oil change and vehicle inspection at our shop today.
Computer Diagnostics
- Modern vehicles require expert-level computer diagnostics to identify complex issues.
- We scan all systems including engine, transmission, and emissions.
- Accurate troubleshooting means quicker repairs and lower costs.
Fuel Delivery
- Out of fuel? We’ve got your back with fast fuel delivery services.
- Whether you’re roadside or on a job site, we deliver diesel or gas on the spot.
- Serving drivers and operators throughout Trinidad and surrounding towns.
Tires
- We provide tire repair, rotation, replacement, and tire services.
- From passenger cars to commercial rigs, we carry top brands and fast installation.
- Stay safe and on the road with expert tire care at ER Auto & Diesel.
Vehicle Maintenance
- Complete vehicle maintenance for cars, trucks, and diesel engines.
- Oil changes, tire rotations, brakes, inspections, and more—done right every time.
- Visit our shop in Trinidad or schedule our service today.
Check Engine Light
Modern vehicles rely on complex systems—our expert team uses advanced diagnostics to pinpoint issues accurately. Count on ER Auto & Diesel to fix it right the first time, every time.
Oil Analysis Testing
- Detect engine wear, contaminants and fluid performance issues before they become major problems.
- Every service includes a comprehensive digital vehicle inspection for every vehicle.
Visit our shop or book reliable auto repair services in Trinidad.
Can’t Find What You’re Looking For?
We’ve got you covered with both in-shop auto and diesel repair services. At ER Auto & Diesel, LLC, our expertise goes beyond the services listed above. Reach out with your automotive or heavy-duty concerns—we’re here to find the right solution. Your satisfaction is our priority. Call us today and get back on the road with confidence!
FAQs
ER Auto & Diesel, LLC provides repair services for everything from passenger vehicles to heavy-duty trucks, buses, RVs, and heavy equipment.
Yes, ER Auto & Diesel, LLC offers repair services for diesel trucks, trailers, heavy equipment, and more, providing fast response throughout Southern Colorado and Northern New Mexico.
ER Auto & Diesel, LLC specializes in expert commercial truck and trailer repairs, including brake systems, suspension issues, and electrical problems, to keep your rig road-ready.
ER Auto & Diesel, LLC handles all types of bus repairs, from school buses to shuttle fleets. They provide fast, reliable diagnostics and service to ensure safe passenger transport.
ER Auto & Diesel, LLC specializes in repairing a wide range of vehicles, including passenger cars, trucks, buses, RVs, and heavy equipment.
ER Auto & Diesel, LLC provides complete RV repairs including mechanical, electrical, and chassis service to get you road-ready fast.
ER Auto & Diesel, LLC specializes in heavy equipment repairs for loaders, excavators, and other construction equipment. They offer on-site and in-shop services to minimize project delays.
ER Auto & Diesel, LLC specializes in electrical diagnostics for a wide range of vehicles, including light-duty and heavy-duty vehicles such as cars, trucks, buses, RVs, and heavy equipment.