Heavy Duty Trucks

For any Chicago business that relies on commercial vehicles, uptime is everything. When a heavy-duty truck is down, it’s not just a mechanical problem—it’s a logistics nightmare that costs you time, money, and customer confidence. Finding a reliable HD truck shop that understands the urgency and has the capability to service these complex vehicles within the city can be a major challenge. You need a partner who is as committed to your schedule as you are.

Triangle Auto Repair & Service is that partner. We provide expert heavy-duty truck repair in Chicago, offering a convenient and trusted solution for local fleets and independent operators. We understand that your truck is your livelihood, and our mission is to provide efficient, durable repairs that get your assets back on the road and earning for you. For reliable commercial truck service in Old Irving Park, call our team at (773) 539-5858.

Your Partner in Minimizing Downtime

We know that every hour a commercial vehicle spends in the shop is an hour of lost revenue. Our entire approach to HD truck service is built around speed, accuracy, and reliability. We service a wide range of commercial vehicles, including box trucks, delivery vans, heavy-duty pickups, and other vehicles in your fleet, providing a one-stop solution for your maintenance and repair needs.

Our Comprehensive HD Truck Service Capabilities

Heavy-duty trucks are built differently, and they require specialized knowledge and equipment. Our experienced technicians are equipped to handle the robust systems that keep your business moving.

• Advanced Diesel Engine Diagnostics & Repair: We handle complex diesel engine service, from diagnostics and fuel system repair to routine maintenance that ensures longevity and performance.
• Heavy-Duty Brake Systems: We are proficient in servicing both hydraulic and air brake systems, ensuring your truck has the stopping power it needs to operate safely under heavy loads.
• Drivetrain, Transmission & Clutch Service: We diagnose and repair the robust transmissions, clutches, differentials, and driveshafts that are essential to your truck’s operation.
• Cooling System & Radiator Service: Leveraging our heritage as radiator specialists, we ensure your truck’s cooling system is up to the task of dissipating the immense heat generated by a hard-working commercial engine.
• Suspension and Steering Systems: We service the heavy-duty steering and suspension components that provide stability and control for heavy loads on demanding Chicago streets.

Fleet Maintenance Programs for Chicago Businesses

The most effective way to reduce costly downtime is with a consistent preventative maintenance program. We work with local businesses to create customized fleet service schedules that fit your operational needs and budget.

• Customized Maintenance Plans: We will help you develop a proactive maintenance schedule based on your vehicles’ mileage and usage patterns to catch small problems before they sideline a truck.
• Priority Service for Fleet Accounts: We understand your urgency. Our fleet clients receive priority scheduling to ensure the fastest possible turnaround time on all repairs.
• Detailed Service Records: We provide clear, detailed service records for every vehicle in your fleet, helping you manage maintenance costs and maintain compliance.

Frequently Asked Questions about HD Truck Service

What types of commercial trucks do you service?

We service a wide range of light and medium-to-heavy-duty commercial vehicles. This includes delivery box trucks, work vans, heavy-duty pickup trucks (like Ford F-350s, Ram 3500s), and other commercial chassis vehicles. Please call us to discuss the specific needs of your fleet.

Can you help us stay compliant with DOT regulations?

While we are not an official state inspection station, our services are crucial for DOT compliance. We perform all the necessary repairs on critical systems like brakes, lights, steering, and suspension to ensure they meet the stringent safety standards set by the Federal Motor Carrier Safety Administration (FMCSA), helping you pass your official inspections with confidence.

How does preventative maintenance reduce my operating costs?

Preventative maintenance is one of the highest-return investments for any fleet. It drastically reduces the likelihood of catastrophic failures, which lead to expensive emergency repairs and significant downtime. By regularly servicing fluids, brakes, and other wear items, you extend the life of your major components, improve fuel efficiency, and create a more predictable and manageable maintenance budget. Contact our commercial service team to learn more about our programs and our wholesale parts department.