Auto Mechanics at Professional Diesel & Automotive

Your Diesel Specialists & Auto Repair Authority in Glenwood Springs

Professional Diesel & Automotive is a full-service auto and truck repair facility in Glenwood Springs catering to the needs of diesel drivers throughout the Rocky Mountain valleys. We specialize in domestic diesel-powered vehicles (Ford Powerstroke, Dodge Cummins, GMC Duramax) with expertise in diesel diagnostics and performance solutions as well as general auto repair. Truly, the range of vehicles we’re equipped and qualified to repair at PDA distinguishes us from other auto and truck repair shops in the area—old to brand-new, big to small, we’ve got you covered!

Our Auto Repair & Vehicle Maintenance Services

  • Air Filter Replacement
  • Alternators
  • Anti-Lock Brakes (ABS)
  • Auto & Truck A/C Repair & Service
  • Auto & Truck Diagnostics
  • Batteries
  • Belts & Hoses
  • Brake Inspection
  • Brake Repair & Service
  • Catalytic Converters
  • Check Engine Light
  • Clutch Repair & Replacement
  • Coolant / Antifreeze Change
  • Coolers / Diesel
  • CV Joints
  • Diesel Tuners
  • Differentials
  • DOT Inspections
  • Drive Axles
  • Drivetrain Solutions
  • Electrical Repair & Service
  • Engine Diagnostics, Repairs & Replacement
  • Exhaust Systems & Mufflers
  • Filters
  • Fluid Flushes
  • Four Wheel Drive Repair
  • Frontend Maintenance, Repair & Alignments
  • Fuel Injection Cleaning
  • Heating Systems
  • High-Performance & Aftermarket Upgrades

More on Our Service Specialties

  • Brake Repair & Service

    Brake Repair & Service

    At PDA, we’re experts in all phases of brake repair and service, including brake rotor replacement, front disc brake repair, parking brake adjustment, rear disc brake repair, rear drum brake repair and anything else your brakes require. Although braking systems vary from vehicle to vehicle, the responsibility and importance of the components remains the same. From brake pedal to brake fluid to brake pads, calipers, lines and hoses, let us make sure you’re ready to stop when you need to with comprehensive brake repair and service.


  • Drivetrain Solutions

    Drivetrain Solutions

    The drivetrain is the system of components that generate the power to move your car or truck. When one of these components starts to malfunction or fail, it can have a dramatic effect on your vehicle’s performance. Signs of ailing drivetrain include rumbling, grinding or whining noises, transmission fluid leaks, uncommon tire wear, sudden vibrations when you shift gears and positioning problems. At PDA, we offer drivetrain solutions such as transmission service and flush, differential and transfer case service and part upgrades.


  • Diesel Engine

    Engine Diagnostics, Repairs & Replacement

    Your vehicle’s engine is at the center of its overall performance, and if it’s running poorly, all your systems and components may be compromised. At PDA, we’re engine experts with the skill and experience to handle all types of engine diagnostics and engine repair issues, from oil changes to timing belt replacement and engine replacement. Our specialty is domestic diesel-powered engines, including Ford Powerstroke, Dodge Cummins, GMC Duramax, 6.0L, 6.4L, 6.6L, 6.7L, 7.3L, V8, V10, 5.7L, and 5.9L.


  • Frontend Maintenance, Repair & Alignments

    Frontend Maintenance, Repair & Alignments

    Modern vehicles benefit from more precise and complex frontend systems than in the past, which means frontend components have become increasingly critical for your car’s overall performance. If you’re experiencing a shaky, rough ride, your struts and/or shocks could be the problem, or you may need another type of frontend maintenance service, like a wheel alignment. Our mechanics can handle any frontend repairs you need, and we’re experts at wheel alignments, with state-of-the-art wheel alignment equipment.


  • High-Performance & Aftermarket Upgrades

    High-Performance & Aftermarket Upgrades

    At PDA, we love taking vehicles from average to awesome with high-performance and aftermarket upgrades. Whether more horsepower, better handling, improved fuel efficiency or all the above are your goal, we can get you there by enhancing or replacing your vehicle’s stock components. With our experience handling high-performance and aftermarket upgrades, you can be confident you’re getting the best bang for your buck and because we take care of installation and service, you can count on accuracy and safety.