Expert Cummins Service & Repair in Converse & San Antonio, TX
When your truck is powered by a Cummins engine, you expect nothing less than strength, endurance, and performance that stands up to heavy workloads and long hauls. At B&V Motor Service, we specialize in Cummins repair in Converse and San Antonio, TX, providing expert maintenance, diagnostics, and repairs for all Cummins-powered diesel trucks. Whether you drive a Ram 2500, 3500, or rely on a commercial fleet, our certified Cummins mechanics have the experience and tools to keep your truck performing at its best.
We know downtime costs you money — that’s why we deliver quick turnaround times, accurate diagnostics, and dependable repairs to get you back on the road fast.
Expert Cummins Engine Service You Can Rely On
Cummins engines are known for their legendary torque, towing capability, and reliability — but even the toughest diesel engines need proper care. Our team provides comprehensive Cummins engine service designed to extend the life of your truck, prevent major breakdowns, and maintain peak performance.
At B&V Motor Service, we use OEM-level diagnostic tools and proven repair procedures to ensure every job is done right the first time. From the latest 6.7L Cummins to older 5.9L models, we know your engine inside and out.
Our Cummins Services
We handle every aspect of Cummins service, from routine maintenance to complete engine rebuilds. Here’s what we offer:
Cummins Diagnostics and Performance Checks
Our advanced diagnostic tools read manufacturer-specific codes and live data to identify problems quickly.
We perform:
- Engine computer and sensor diagnostics
- Fuel system pressure and balance rate testing
- Turbo boost and EGR performance checks
- Exhaust back pressure and DPF regeneration testing
- Cooling and oil system analysis
With our precision diagnostics, we’ll pinpoint issues before they turn into expensive repairs.
Routine Cummins Maintenance
Consistent maintenance is key to keeping your Cummins engine strong and efficient. Our technicians follow factory recommendations and tailor services to your truck’s needs.
Our routine maintenance includes:
- Oil and filter changes with high-quality diesel oil
- Fuel filter replacement
- Air intake and filter cleaning
- DEF fluid top-off and inspection
- Coolant flush and system testing
- Transmission and differential fluid checks
We keep your truck road-ready, ensuring reliability for work and daily driving alike.
Fuel System Service
A healthy fuel system is critical for Cummins engines. Over time, contamination or wear can reduce efficiency and power.
We offer:
- High-pressure fuel pump (CP3/CP4) replacement and repair
- Fuel injector testing, cleaning, and replacement
- Fuel line inspections for leaks and blockages
- Filter housing and rail pressure sensor repairs
If you’ve noticed poor fuel economy, hard starts, or loss of power, our Cummins mechanics will restore your fuel system’s performance.
EGR, DPF, and Emissions System Repairs
Modern Cummins engines rely on emissions systems like EGR and DPF to stay compliant and efficient. When these systems clog or fail, performance and fuel economy suffer.
Our services include:
- DPF cleaning or replacement
- EGR valve cleaning or replacement
- Exhaust gas sensor testing
- DEF system maintenance and troubleshooting
We’ll help your truck stay emissions-compliant without sacrificing performance.
Turbocharger Inspection and Service
Your Cummins turbocharger is vital for maintaining power and efficiency. We inspect and repair turbos to prevent lag, smoking, and power loss.
Our services include:
- Turbo cleaning and inspection
- Wastegate and actuator testing
- Boost leak checks and hose replacement
- Turbo rebuild or replacement as needed
If you hear unusual whistling, experience reduced power, or see smoke, it’s time for a Cummins turbo inspection at B&V Motor Service.
Cooling and Oil System Service
Texas heat can be brutal on diesel engines. Proper cooling is essential to prevent overheating and engine failure.
We perform:
- Radiator repair and replacement
- Coolant flush and pressure testing
- Thermostat and water pump replacement
- Oil leak diagnosis and gasket replacement
Our goal is to keep your Cummins engine cool, lubricated, and running strong — even on the hottest Texas days.
Full Engine Rebuilds and Replacements
When major issues arise, our shop has the tools and expertise for Cummins engine rebuilds or replacements.
We offer:
- Complete teardown and inspection
- Replacement of worn components (bearings, pistons, valves, etc.)
- Precision machining and reassembly
- Remanufactured engine installs
We’ll identify the cause of failure, rebuild your engine to factory specs, and get your truck performing like new again.
Trust B&V Motor Service for Cummins Repair & Service
When it comes to Cummins repair in San Antonio and Converse, TX, B&V Motor Service stands out for quality, reliability, and honest work.
Here’s what makes us the trusted choice:
- Certified Cummins mechanics with years of diesel experience
- OEM diagnostic tools for pinpoint accuracy
- Fast turnaround times to reduce your downtime
- Fleet-friendly service options and maintenance tracking
- Transparent pricing and clear communication every step of the way
We take pride in keeping Texas truck owners and fleet operators moving — with power, reliability, and confidence.
Signs Your Cummins Engine Needs Service
Even durable Cummins engines show signs when they need attention. Watch for these common warning indicators:
- Hard starting or long cranking times
- Loss of power or sluggish acceleration
- Excessive smoke (white, blue, or black)
- Poor fuel economy
- Check engine or warning lights
- Coolant or oil leaks
- Loud knocking or metallic noises
If you experience any of these issues, don’t wait. Bring your truck to our Cummins specialists in Converse or San Antonio for immediate diagnostics.
Our Process for Cummins Engine Repair
When you bring your Cummins-powered truck to B&V Motor Service, here’s what you can expect:
- Initial Inspection: We perform a comprehensive visual and computer inspection.
- Detailed Diagnostics: Using Cummins-specific tools, we identify the root cause of performance issues.
- Repair Plan: We explain the findings, provide an estimate, and recommend the most effective solution.
- Expert Repairs: Our skilled mechanics perform all services using high-quality parts and precision tools.
- Final Testing: Every repair is followed by a performance check and test drive to ensure reliability.
We’re committed to giving you the best service possible — with clear communication and expert workmanship.
FAQ: Cummins Repair in Converse & San Antonio, Texas
Q: How often should I service my Cummins engine?
A: Most Cummins engines need service every 10,000–15,000 miles, depending on your driving conditions. Regular oil and filter changes are critical to long engine life.
Q: Do you work on both 5.9L and 6.7L Cummins engines?
A: Yes! We service all Cummins models, including the 5.9L, 6.7L, and other diesel variants found in Ram trucks and commercial applications.
Q: Can you diagnose turbo or injector issues?
A: Absolutely. We use advanced diagnostics to test boost pressure, injector balance rates, and turbo efficiency to pinpoint the cause of poor performance.
Q: Do you handle EGR and DPF cleaning?
A: Yes. We offer professional cleaning, repair, and replacement of EGR valves and DPF filters to maintain performance and emissions compliance.
Q: What if my truck loses power under load?
A: This could indicate issues with the turbo, fuel system, or exhaust restriction. We’ll perform a full diagnostic check to find and fix the problem quickly.
Q: Can you rebuild my Cummins engine?
A: Yes, our team performs full engine rebuilds and replacements for both personal and fleet vehicles.
Schedule Your Cummins Repair & Service Today!
When your truck demands the best, trust B&V Motor Service — the leading shop for Cummins repair near Converse & San Antonio, TX. Whether you need routine maintenance, a Cummins engine service, or complete engine diagnostics, our certified Cummins mechanics will keep your diesel running strong and reliable.
Don’t let performance issues or breakdowns slow you down — call B&V Motor Service today or book your appointment online. Experience honest, professional Cummins repair backed by expert care, fair pricing, and a team that truly understands your truck.
