If you drive a RAM 2500, 3500, or a commercial vehicle equipped with a Cummins diesel engine, you already know it delivers unmatched torque and durability. At Thunderbird Automotive Specialists in Phoenix, AZ, we provide expert Cummins repair and maintenance services tailored to the needs of diesel truck owners.
Whether you’re towing heavy equipment, commuting across the Valley, or managing a fleet, our experienced diesel technicians are here to keep your Cummins engine running at peak performance.
Specialized service for Cummins diesel engines
Cummins engines are known for their strength and reliability, but even these powerful machines need specialized care. Our technicians have extensive experience servicing 5.9L and 6.7L Cummins diesel engines commonly found in RAM trucks and medium-duty vehicles.
From basic repairs to complex diagnostics, we use state-of-the-art tools and OEM-quality parts to make sure your Cummins engine gets the attention it deserves.
Common Cummins diesel engine repairs we perform
Even the toughest diesel engines need occasional repairs. At Thunderbird Auto, we frequently diagnose and repair Cummins-specific issues, including:
- Fuel system problems: clogged fuel filters, worn injectors, or poor fuel pressure
- Turbocharger failure: loss of power or increased exhaust smoke
- EGR and DPF issues: vital emissions components that impact performance
- Head gasket leaks: caused by overheating or excessive pressure
- Sensor malfunctions: including crankshaft, MAP, and other engine sensors
- Oil leaks or high oil consumption: often signs of gasket failure or internal wear
If you’re noticing decreased fuel economy or power loss, bring your truck in for a thorough inspection.
Cummins diesel engine maintenance services
Preventive care is key to long-lasting diesel performance. We offer complete maintenance services for Cummins engines, including:
- Diesel oil and filter changes
- Fuel system cleaning
- Turbo inspections and cleaning
- EGR and DPF service
- Cooling system flushes
- Performance diagnostics and tuning
- Full engine rebuilds
Routine maintenance will help extend the life of your engine—and help you avoid costly repairs down the line.
Transmission repair and drivetrain services
Your Cummins-powered RAM truck is built to tow and haul. But that kind of demand can put added stress on your transmission and drivetrain. Our team offers expert transmission repair and maintenance services to keep your truck operating smoothly.
We handle:
- Transmission diagnostics and rebuilds
- Torque converter inspections
- Transmission fluid service
- Driveline and axle repairs
- Clutch service (for manual-equipped trucks)
If you’re experiencing hard shifts, delayed response, or unusual noises, let us perform a full drivetrain inspection and get you back on the road. We carefully examine every transmission and drivetrain component to boost performance and preserve the power of your Cummins diesel engine.
Why you should choose Thunderbird Automotive Specialists
Since 1976, Thunderbird Auto has built a reputation for honest service, expert diagnostics, and transparent pricing. We’re proud to be Phoenix’s trusted choice for diesel and Cummins engine repair.
Our technicians stay current on the latest Cummins technologies and are committed to providing reliable repairs that keep your vehicle working as hard as you do. When you visit our auto repair shop in Phoenix, Arizona, you can count on us to provide quality maintenance and repair services.
Schedule Cummins diesel engine services in Phoenix, Arizona
Ready to take care of your Cummins engine? Whether you need simple maintenance, diagnostics, or major repairs, Thunderbird Auto is here to help. Conveniently located in Phoenix, we serve truck owners throughout the Valley.
Call us today at (602) 560-8328 to schedule an appointment or stop by our shop for dependable Cummins repair services.
