Truck Diesel Engine Repair
Services in Arizona

Heavy-duty engines are often the most important component within a heavy-duty truck setup. Without them, you’d be unable to haul cargo of any kind. Here at Arizona Fleet Service, we offer a wide variety of heavy-duty engine services. Whether you need large repairs or preventive maintenance, we’ve got you covered.

Call Now to Schedule Your Truck & Fleet Diesel Engine Repair Services

Symptoms of a Bad Heavy-duty Engine

White Smoke

If you notice that white smoke is coming from your exhaust, chances are you have a blown head gasket. Head gaskets tend to blow when your engine overheats for a prolonged period of time. If left unchecked, a blown head gasket may lead to further damage. White smoke is usually accompanied by coolant loss, poor performance, and poor fuel efficiency.

Rough Idle

If your truck is idling very roughly, chances are you have a damaged EGR valve. This is especially common on Cummins engines. When an EGR valve is damaged or stuck open, all of your exhaust is being recirculated into your combustion chamber. This means your truck isn’t getting enough oxygen, hence the rough idle.


Contact us Today

Want to hear more about our engine repair and maintenance services? Call today!

Our Repair Services:

We Have Arizona Covered!

With a full-service truck repair shop in Prescott Valley, and mobile repair units throughout the Arizona, we are able to provide comprehensive truck repair & fleet service coverage across the state. Get in touch with us today for more information and to schedule in-shop or onsite truck repair & fleet services.

Our Services



Preventive Maintenance

In order to lengthen the lifespan of your vehicle and save yourself money, it’s vital that you perform adequate preventive maintenance on your heavy-duty vehicle. Here at Arizona Fleet Service, we offer a wide range of preventive maintenance services that are sure to meet your every need.


DOT Inspection

We offer 3 different DOT inspection types. Annual State DOT Inspections, Federal DOT Inspections, and BIT inspections. Why wait at an official DOT facility when you can make an appointment with us instead? Skip the line and get personalized service here at Arizona Fleet Service. 


Roadside Assistance

If you're a truck driver in Tucson, Tempe, Phoenix, or Prescott Valley in Arizona in need of reliable roadside assistance services, look no further than Arizona Fleet Service. We specialize in providing top-notch mobile roadside assistance services specifically tailored for trucks.


What Our Customers Say About Us


"Called for an emergency, the response was immediate and professional. Not only were they able to repair the truck, the bill was lower than there estimate. Very satisfied."

Frank Gargiulo


"I brought my truck in last week. I'm very happy with the service I received from Arizona Fleet Service. If you're in anywhere near Phoenix, Arizona, I highly recommend this shop."

Jeremy Jones


"I took my 45' diesel motorhome to AZ Fleet for 75,000 mi. service. They performed all the requested services in a careful timely manner. Both of these issues were of great concern to us as we live fulltime in the motorhome and we are traveling over 10,000 mi. this summer"

Les Bucher


"I was extremely satisfied with BGA. I will definitely recommend them to others. Greg and Clint know what they’re doing. Most importantly to me, they did the job right the first time and it was a clean site when they left. Thanks BGA!”

Mgr., RV Storage Facility


"These are our guys in Arizona! THey get the job done. They come prepared to deal with the situation and get my units back on the road quickly. I definitely recommend them to anyone needing fleet repair in Arizona."

Breakdown Dept Supervisor, National Fleet


"Great family-owned company. We’ve done business with them for years. They live up to their motto. They are professional, and when mistakes are made they are honest and transparent."

Jeff Garcia