Cummins Diesel Service

Ace Performance Automotive provides Cummins diesel service and repair on Cummins diesel-powered trucks, including RAM, and Nissan Titan XD light and medium-duty trucks. Whether you need an electrical problem diagnosed or major engine repairs, our ASE Certified auto technicians can do it.

Cummins Diesel Maintenance

Our Cummins diesel mechanics are familiar with all of the variations of the Cummins engine. Common maintenance includes oil and filter changes, replacing the fuel filter and air filter, and flushing the coolant. Additional service requirements depend on your truck’s configuration, and we are familiar with all of these service procedures:

  • Transmission service
  • Differential fluid replacement
  • Flushing the transmission fluid
  • Servicing the transfer case
  • Power steering service
  • Flushing the brake fluid


Light-duty diesel trucks are often asked to do the job of much heavier duty vehicles, pulling heavy loads and seeing many more miles than most passenger vehicles. Flushing or replacing the fluids ensures that any buildup in the drivetrain’s components is removed. This is especially important with automatic transmission fluid since particulate from the transmission’s clutch discs builds up in the filter and pan.

A Cummins killer dowel pin repair at Ace Automotive

Cummins Diesel Repairs

Keeping your Cummins diesel on the road means doing preventative maintenance and finding upcoming issues before they break. When you bring your truck in for regular service, we’ll look for any upcoming issues – at least the ones we can visually see. It’s impossible to look at a sensor or other electrical component and tell if it’s going bad, but we can see if certain components are on their way out, including:

  • Water pumps
  • Suspension components
  • Steering components
  • Brakes and rotors
  • Oil leaks
  • Coolant leaks
  • Power steering leaks
  • Transmission leaks

We use OE and OEM parts, but where we know an aftermarket part is better, we’ll use that. We make sure we use only the best so that you get the most out of your personal truck, work truck or fleet vehicle – and keep it on the road longer.

Performance Upgrades on a Cummins Diesel

While we do have to adhere to EPA guidelines when installing performance upgrades, we can upgrade your Cummins. The B-Series engine has several upgrades that can be installed and tuned to meet federal regulations. If you’re looking to add some power to your truck, ask us about available upgrades.

When you call us, have the year, make, model and engine information ready and we’ll tell you what upgrades are available.

Medium-Duty RAM Trucks

Medium-duty trucks are perfect workhorses, so many who prefer diesel engines have them as personal vehicles. Companies often choose medium-duty trucks as fleet vehicles. The B-Series Cummins is commonly found in light to medium-duty Cummins powered trucks. RAM 2500 – 5500 are welcome at Ace Performance Automotive.

We have the equipment required to work on medium-duty trucks, including the proper lifts and larger tooling. If you need repairs, our ASE Certified mechanics can get your truck serviced and repaired, including the transmission, chassis, rear end, brakes, suspension, driveline, the HVAC system, electrical system, and the fuel system.

Contact Ace Performance Automotive

No matter what size truck you have, we can service it and repair it. Stop by the shop or call us at 480-539-6872 to schedule an appointment. You can also use our online scheduling form to schedule an appointment for your personal truck, work truck or fleet trucks.