Diesel Repair
Diesel trucks work hard in Arizona heat, and the failures follow patterns. We diagnose and repair Power Stroke, Cummins and Duramax trucks at our Glendale shop — from injectors and turbos to cooling systems and full overhauls.
Diesel engine families
6.0L V8 turbodiesel
6.4L V8 twin-turbo diesel
6.7L V8 turbodiesel
5.9L inline-six turbodiesel
6.7L inline-six turbodiesel
6.6L V8 turbodiesel
Diesel work we perform
- Injector diagnosis, balance rate and return flow testing, replacement and programming
- Turbocharger, actuator and boost-control diagnosis and replacement
- High-pressure and lift pump repair, fuel contamination cleanup
- EGR, DPF and regeneration fault diagnosis and repair
- Cooling system repair — radiators, EGR coolers, water pumps and thermostats
- Hard start, no start and low power diagnosis
- Head gasket work, in-frame overhaul and complete engine replacement
- Glow plug, sensor, wiring and control module diagnosis
Symptoms we see most
- Hard starting, extended cranking or no start when hot or cold
- White or excessive black smoke
- Coolant loss with no visible external leak
- Low power, limp mode or a check engine light with boost faults
- Repeated or incomplete regeneration cycles
- Fuel in the oil, or oil in the coolant
Frequently asked questions
Which diesel engines do you work on?
Ford Power Stroke, Ram Cummins and GM Duramax light and medium duty applications, including work trucks and fleet vehicles.
Do you diagnose emissions and after-treatment faults?
Yes. We diagnose DPF, EGR, SCR and regeneration complaints and repair them to a functioning, street-legal configuration.
Can you handle towing and heavy-duty use?
Yes. Tell us how the truck is used — towing, hotshot, service body or fleet duty — because it changes both diagnosis and the repair we recommend.