Diesel Truck And Engine Repairs

Call J&A Fleet for all your diesel truck and diesel engine repair needs. We know how critical it is to keep your trucks on the road and operating at peak performance. When downtime costs you money, you need a diesel repair partner you can trust to respond quickly, diagnose problems accurately, and deliver long-lasting repairs.

At J&A Fleet, we provide comprehensive diesel engine repair and diesel truck repair services for fleets, owner-operators, and businesses that rely on heavy-duty diesel equipment. Whether you operate in transportation, construction, logistics, or industrial services, our experienced team is here to keep your vehicles running safely and efficiently.

Call Us (815) 518-5252

Experienced Diesel Technicians. Advanced Diagnostics.

Our highly trained diesel technicians use state-of-the-art diagnostic tools and equipment to quickly identify engine and system issues before they turn into major failures. From warning lights and performance loss to complete engine shutdowns, we take a methodical approach to diesel diagnostics so nothing is missed.

We continuously maintain and update our tools, service vehicles, and equipment to ensure we are fully prepared to handle everything from routine diesel maintenance to complex engine repairs and overhauls. Our goal is simple: fix the problem correctly the first time and get your truck back in service as fast as possible.

We Get Your Diesel Truck Back on the Road

No matter the issue, J&A Fleet has the expertise to get your diesel truck moving again. Our diesel engine and truck repair services include:

  • Diesel engine diagnostics, repair, and overhaul
  • Fuel system repair and maintenance (injectors, pumps, filters)
  • Transmission and drivetrain repairs
  • Brake system inspection and repair
  • Suspension repair and wheel alignment
  • Electrical system diagnostics and repairs
  • Cooling system repairs (radiators, hoses, thermostats)
  • Exhaust and emissions system repairs

Whether your truck needs minor adjustments or major mechanical work, our technicians are equipped to handle the job efficiently and safely.

Quality Parts. Reliable Repairs. Proven Results.

We use only high-quality parts and trusted components to ensure durability, performance, and long-term reliability. Every repair is completed with close attention to detail and a commitment to workmanship you can rely on.

At J&A Fleet, customer satisfaction isn’t just a goal—it’s the standard we work by every day. When you’re dealing with a breakdown, stalled vehicle, or engine issue, you can count on us to provide fast, dependable diesel engine repair services that minimize downtime and protect your investment.

Need Diesel Engine Repair Now?

If your diesel truck is down or showing signs of trouble, contact J&A Fleet today. We’re ready to handle your diesel engine and truck repair needs and get you back on the road with confidence.

Trusted By

Our Happy Clients

ermias kassahun
Excellent service and very honest people. I came in with a driveshaft/carrier bearing issue causing vibration on my truck, and they stayed after hours to help me. Small family-owned shop with great courtesy, professionalism, and customer service. They explained the issue, showed me the work, and made sure everything was done properly. I’m very satisfied with the repair and thankful for their help. Highly recommend this shop for driveline and truck repairs.
Braden Munoz
These guys were awesome, needed a quick hose fix, I was in and out in 10 min and they were super nice people. Would highly recommend to anyone!
James Rutherford III
Thanks again John and Charlie for getting me back up and running the next morning. Your tow truck driver was friendly and professional and towed me to your shop and dropped me at the hotel and your guy Charlie had me fixed and on the road 5 mins before check out at the hotel.Will save your number if I ever break down again in your area.
John Carroll
John with J&A Fleet was awakened in the middle of the night. I waited less than 15 minutes for his arrival. He had me up and running within seconds. Showed me some unique tricks for future issues. You cannot go wrong with folks like John. Thank you so very much for making a difficult time seem so easy. Will not forget.
RFS Billing
Went to TA and they were going to charge over 3 k said we needed a 5th wheel plate. J&A techs found the actual problem and had us ready to go in less than an hour. Very honest shop
Nam Phamtran
Talked to John about paying for him to inspect a truck, I told him the specs on the truck and he told me over the phone that it was not worth the money that they were asking for the truck. He was honest even though he would be losing out on the inspection fees. What a great guy and company!
Adam Ryder
John and the entire J&A team are very easy to work with. They get the job done right and in a timely manner. We will definitely be using them again!
Shon Thomas
Awesome guys did great job far price put a lot work in to fixing my trailer finished fairly quick would highly recommend using these guy's
Carthon Diggs
Simply the best & efficient. They are good at diagnosing whatever problem you have. Pricing is very straightforward. Will definitely use this place again
Kenneth Cotter
Some of the best people at work here. If you need anything done, come here and they’ll get you sorted out. 10/10.
Marcus Haynes
Quick fast knowledgeable and efficient. I had issues with my 2027 Volvo 860 and in minutes he got me running perfect again. Thank you so much
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