Diesel Engine Performance

Diesel Engine Rebuilders and Performance Repair Shop in San Antonio

Diesel Mechanic Specialists at Auto Service Experts Complete Automotive Garage


Commercial fleet auto repair on Cummins diesel Dodge 2500 5.9

Transmission & AC Repair on Dodge  2500 5.9 Cummins Diesel Fleet Truck


Our engine repair technicians have Specialized in Light and Medium Duty Diesel Trucks for More Than 20 Years!

Diesel repair calls for highly experienced mechanics with extremely technical training. Auto Service Experts employs professionally certified diesel mechanics trained by the leaders in national automotive education. We are committed to furthering our expertise by continuously studying industry research and staying up with the latest technology and developments. Through our many years of experience servicing and repairing engines on all makes and models of diesel vehicles, we have gained a reputation for being able to troubleshoot even the most complex problems. For questions about the services we provide including diesel transmission rebuilding and oil changes, call and speak with an ASE certified master technician today. 


Operation & Maintenance

Diesels are some of the most fuel-efficient vehicles on the road. They are not, however, the most EPA friendly. Proper servicing and maintenance not only reduces the amount of pollution your vehicle emits but also increases fuel economy. It is sometimes necessary to have a tune-up to increase diesel engine performance and power.


Diesel Engine Oil Change

Fuel Injector Replacement on Diesel Ford Truck


Diesel Engines Repaired by Auto Service Experts:

Chevrolet 6.2 and 6.5 Duramax
Dodge 5.9 and 6.7 Cummins

Ford Powerstroke Diesels

Dealerships often advertise that they have factory trained mechanics. That does not necessarily mean that they have a thorough understanding of your engine's performance and operation. Factory training tends to be a broad education that may not focus specifically on the particulars of diesel vehicles. Look for an auto repair shop with specialized diesel mechanics that have experience working with your particular make and model.


Fleet, Light and Medium Duty Diesel Engines:

We understand that your business depends on your commercial vehicle, and lost operating time can be expensive and inconvenient. Our auto diagnostic ability and specialized knowledge of diesel trucks and cars allow us to pinpoint your vehicle's problem and make the proper repairs quickly and correctly, getting you back on the road as soon as possible. Our commercial fleet maintenance and repair services are designed to help you get the most out of your commercial vehicles. We maximize performance and minimize downtime due to repairs, all while saving you money. Call today to ask about special pricing for fleet repair.


  Diesel Repair San Antonio Head Gasket and Inframe Kit

Head Gasket and Inframe Kit Replacement


Auto Service Experts Diesel Engine Repair Services in San Antonio

• Cam Sensors
• Crank Sensors
• Diesel Computer Diagnostics
• Diesel Overhauls
• Diesel Wiring
• Fuel Filters
• Fuel Pressure Regulators
• Fuel Pumps
• Glow Plugs
• High Pressure Oil Injection Pumps
• Injectors
• Injector Pumps
• Injector Rebuilding
• Inner Coolers
• Low Sulfur Additives
• Superchargers
• Turbochargers
• Vacuum Pump
• Valves
• Water Separators


Auto Service Experts stands behind our diesel repairs with the Best Warranty in the business on parts and labor.


Diesel Engine Rebuild San Antonio on DT 466

DT 466 Diesel Engine Rebuild

Diesel Engine Operation EGR Valve Maintenance

A short explanation of the basic system operation, differences between regular & diesel gas, EGR valve functions & operation, and exactly how diesel engine maintenance increases vehicle performance & fuel economy, and lowers emissions.

ASE master technician Carlos Rodriguez

(210) 495-6688
Auto Service Experts

13050 San Pedro Ave. San Antonio, TX 78216

Mon-Fri 8:00am - 6:00pm