Expert Duramax Service & Repair in Converse & San Antonio, TX
When you rely on a Chevrolet or GMC truck powered by a Duramax engine, you expect exceptional torque, towing capacity, and reliability — and at B&V Motor Service, that’s exactly what we help you maintain. Our shop specializes in Duramax repair in Converse and San Antonio, TX, providing expert Duramax service and diagnostics to keep your diesel running strong. Whether you’re hauling for work, towing heavy loads, or driving long distances, our certified Duramax mechanics are equipped to handle everything from routine maintenance to complete Duramax engine service and rebuilds.
We understand that your truck isn’t just transportation — it’s an essential tool for your livelihood. That’s why we provide precise, honest, and timely service that gets you back on the road fast.
Expert Duramax Service You Can Depend On
Duramax diesel engines are known for their durability and efficiency, but they still require proper care and attention. Our team at B&V Motor Service knows these engines inside and out — from the early LB7 and LLY models to the latest L5P generation. Whether it’s an injector issue, turbo failure, or cooling system problem, we have the knowledge, diagnostic tools, and experience to get your Duramax back to full performance.
With factory-grade equipment and OEM-quality parts, our shop delivers dealership-level precision with a personalized, local touch.
Comprehensive Duramax Engine Services
We’re proud to offer complete Duramax service for both individual drivers and commercial fleets in the San Antonio area. No matter the issue, you can count on our team for thorough inspection, accurate diagnosis, and expert repair.
Duramax Diagnostics and Performance Testing
Every successful repair begins with proper diagnostics. We use cutting-edge scan tools and pressure testing equipment to identify performance issues quickly and accurately.
Our diagnostic services include:
- Reading manufacturer-specific fault codes
- Injector balance rate testing
- Turbo boost and exhaust pressure evaluation
- Fuel rail pressure and flow testing
- Cooling and oil system analysis
- DPF and EGR system inspection
By identifying the root cause of the problem, we help you avoid unnecessary repairs and ensure long-term performance.
Routine Duramax Maintenance
Preventive maintenance is key to protecting your diesel engine and avoiding expensive breakdowns. We provide custom Duramax service plans based on your truck’s mileage, age, and usage.
Our maintenance services include:
- Oil and filter changes using premium diesel oil
- Fuel filter and air filter replacements
- DEF system inspection and top-offs
- Coolant flushes and replacement
- Transmission and differential fluid service
- Belt and hose inspection and replacement
With regular maintenance from our Duramax mechanics, your truck will continue to deliver the performance and reliability you depend on.
Fuel System Service
Duramax engines are renowned for their precise high-pressure fuel systems — but even small issues can cause power loss, rough idling, or poor fuel economy.
Our fuel system services include:
- High-pressure fuel pump (CP3/CP4) replacement and upgrades
- Injector testing, cleaning, and replacement
- Fuel filter housing and line inspections
- Fuel rail pressure regulator testing
- Contaminated fuel system repair
If you notice hard starts, white smoke, or loss of power, our Duramax specialists will perform in-depth diagnostics and restore your fuel system to proper function.
Turbocharger Repair and Replacement
A failing turbo can reduce power, create excessive smoke, or cause poor acceleration. We inspect, repair, and replace Duramax turbos for all model years.
Our turbo services include:
- Turbo cleaning and VGT actuator testing
- Boost leak and pressure testing
- Wastegate and solenoid inspection
- Complete turbo replacement or rebuilds
We make sure your turbo is working efficiently — delivering the boost your Duramax engine was built for.
EGR, DPF, and Emissions System Service
Modern Duramax engines depend on emissions systems like EGR and DPF for cleaner operation. Over time, soot buildup or sensor failures can cause check engine lights, loss of power, or regeneration problems.
We offer:
- EGR valve cleaning and replacement
- DPF regeneration and cleaning
- DEF system maintenance and repair
- Exhaust pressure and temperature sensor testing
- Emissions system diagnostics and compliance service
We’ll restore your emissions system for peak performance without sacrificing fuel economy or reliability.
Cooling and Oil System Repairs
Texas heat can push your Duramax engine to its limits. Keeping your cooling system in top condition is critical to preventing overheating and damage.
Our cooling system services include:
- Radiator repair and replacement
- Water pump and thermostat replacement
- Coolant flushes and pressure testing
- Oil leak repair and gasket replacement
- Cooling fan and sensor diagnostics
With our Duramax engine service, we ensure your truck stays cool and efficient — even when towing under heavy loads.
Full Engine Rebuilds and Replacements
When your engine suffers major damage or high-mileage wear, our shop provides full Duramax engine rebuilds and replacements.
Our rebuild process includes:
- Full engine teardown and inspection
- Cylinder head resurfacing and valve service
- Replacement of worn bearings, pistons, and gaskets
- Block machining and reassembly to factory specifications
- Crate or remanufactured engine installation options
We take the time to identify the cause of failure and rebuild your engine to restore like-new performance and reliability.
Trust B&V Motor Service for Duramax Repair
Not every shop understands diesel engines — but at B&V Motor Service, it’s our specialty. We take pride in being one of the leading Duramax repair shops in Converse and San Antonio, TX.
Here’s why customers choose us:
- Certified and experienced Duramax mechanics
- Factory-level diagnostic and testing equipment
- High-quality OEM or equivalent parts
- Fast turnaround to minimize downtime
- Honest communication and clear pricing
- Fleet-friendly service options and maintenance tracking
We treat every truck like it’s our own and every customer like family. Whether you’re a daily driver or a fleet operator, you’ll get the same expert care and personal attention.
Common Signs You Need Duramax Service
Even reliable Duramax engines show signs when something isn’t right. If you experience any of these symptoms, schedule service right away:
- Hard starts or excessive cranking
- Loss of power or hesitation under load
- Poor fuel economy
- Excessive black or white exhaust smoke
- Overheating or coolant loss
- Check engine light or DPF warning light
- Rough idling or unusual knocking sounds
Catching issues early with a Duramax mechanic can prevent expensive repairs and extend your truck’s life.
Our Duramax Repair Process
We believe transparency and precision are key to great service. Here’s what to expect when you visit B&V Motor Service:
- Initial Inspection: We start with a full visual inspection and computer diagnostics.
- Accurate Diagnosis: Our technicians use factory-grade tools to identify the exact problem.
- Repair Plan: You’ll receive a detailed repair plan with honest pricing and timelines.
- Expert Repairs: Our certified mechanics perform the necessary work using top-quality parts.
- Quality Testing: We test your truck after every service to ensure everything performs perfectly.
Our goal is simple — to keep your Duramax-powered truck strong, reliable, and ready for whatever the road demands.
FAQs About Duramax Repair in Converse & San Antonio, Texas
Q: How often should I service my Duramax engine?
A: Oil and filter changes are recommended every 7,500–10,000 miles, depending on driving conditions. Regular fuel and air filter replacements are also essential.
Q: What Duramax engines do you service?
A: We work on all Duramax models, including LB7, LLY, LBZ, LMM, LML, L5P, and LWN — from older 6.6L engines to the latest versions in heavy-duty trucks.
Q: Can you diagnose injector or turbo issues?
A: Yes — our diagnostic tools detect injector balance rates, turbo boost pressure, and fuel delivery issues with pinpoint accuracy.
Q: Do you work on emissions systems like EGR and DPF?
A: Absolutely. We clean, repair, and replace EGR and DPF systems to keep your truck running clean and compliant.
Q: Do you offer Duramax engine rebuilds or replacements?
A: Yes. We provide complete rebuilds and crate engine installations for worn or damaged Duramax engines.
Q: Can you handle fleet maintenance for Duramax trucks?
A: We can. We offer preventive maintenance schedules, tracking, and priority service for fleet customers.
Schedule Your Duramax Service & Repair Today!
When you need reliable Duramax repair near Converse and San Antonio, TX, trust the diesel experts at B&V Motor Service. Our team delivers professional Duramax service, precision diagnostics, and high-quality repairs to keep your truck running like new. From basic maintenance to full Duramax engine service, we have the expertise and equipment to handle it all.
Don’t wait for small issues to turn into costly breakdowns — call B&V Motor Service today or schedule your appointment online. Experience fast, honest, and expert Duramax repair trusted by Texas diesel owners every day.
