Skip to content
Greeley, CO · Medium-Duty Service
Medium-Duty Truck Service & Repair
Light- & Medium-Duty
Tires, batteries, brakes, and full repairs for medium-duty work trucks, box trucks, and vans, from technicians who work on them every day.
Where can I get medium-duty truck service in Greeley?
Truck City Service maintains and repairs medium-duty trucks up through Class 6 in Greeley, CO, including Isuzu N-Series, box trucks, work trucks, and vans. We handle tires, batteries, brakes, alignment, and full repairs, with factory-level diagnostics and ASE-certified technicians. Open Monday through Friday, 7:00 AM to 6:00 PM, at 1415 1st Ave.
Technicians Who Know Medium-Duty, Not Just Trucks In General
Factory-level diagnostics and daily experience with the platforms that actually run in medium-duty fleets are what separate a shop that “can” work on your truck from one that knows it.
“We see the same platforms day in and day out. Isuzu N-Series, box trucks, work vans. That repetition is what lets us diagnose faster than a shop that only sees one every few months.”
David, General Manager, Truck City Service, Greeley CO
If you’re tracking service across more than one truck, our fleet management program keeps every vehicle’s service history and intervals on record in one place.
What We Service
Right Size, Right Load Rating
We carry tires sized and load-rated for your medium-duty vehicle, mounted and balanced in-house.
Inspection & Replacement
Showing signs of age? We’ll inspect your battery and replace it if needed before it strands you.
Inspection Through Repair
From routine brake inspections to full repair, handled by technicians who know medium-duty brake systems.
Amenities While You Wait
- WinAlign® Heavy Duty Alignment System, the alignment system we run in Greeley, used for medium-duty and lighter vehicles
- Comfortable Waiting Area, with free Wi-Fi and vending machines on-site
- Online Scheduling, so you can book your service visit without a phone call
- Massive Accessories Inventory, backed by a full OEM parts department on-site
Service Intervals Worth Knowing
| What To Check | General Interval | Why It Matters |
|---|---|---|
| Oil & filter | 5,000 to 7,500 miles for most medium-duty trucks | Duty cycle and load move this number; OEM guidance and how the truck is actually run set the real interval. |
| Brake inspection | Every 10,000 to 15,000 miles | Stop-and-go delivery routes wear pads far faster than highway miles. |
| Battery test | Every 6 months, or at first sign of slow cranking | Cold weather is when a marginal battery fails, so catching it early avoids a stranded truck. |
| Tire rotation | Every 5,000 to 7,500 miles | Evens out wear across the set and gets full life out of tires sized for your load rating. |
Intervals are general guidance based on OEM recommendations and typical medium-duty duty cycles, not fixed Truck City policy. Load, route, and how hard a truck runs all move the number, so our advisors set the actual schedule around how your trucks are used.
Signs Your Medium-Duty Truck Needs Attention
- Uneven tire wear or a pull to one side.
- Slow cranking or a battery that struggles in cold weather.
- Longer stopping distance or a soft brake pedal.
- Dashboard warning lights that haven’t been checked.
- You’ve been putting off a known repair.
- It’s been a while since your last full inspection.
What Greeley Drivers Say
“We had a tough insurance claim on a service body, Tammy helped us through the process as insurance was being really difficult. Truck is just like new and we could not be happier. They also do all the repairs on our GMC fleet and have always been very straight about every repair.”
“I’ve been coming here for 25 years for all types of mechanical work, and the service has always been great. Very few issues in that time, and they were always taken care of immediately.”
“I don’t normally leave reviews for anything but I felt inclined to after my experience, specifically the rep I spoke to. Matthew was great each and every time we spoke over the phone.”
Common Questions
What brands do you service?
Do you carry tires for medium-duty trucks?
Can you diagnose a battery issue?
What’s the largest vehicle you service?
Do you have a wheel alignment system for medium-duty trucks?
Can I wait on-site during service?
Do you offer online scheduling?
Do you service fleets?
Find Us In Greeley
1415 1st Ave, Greeley, CO 80631
Phone
Hours
Mon–Fri: 7:00 AM – 6:00 PM
Sat & Sun: Closed
Service Area
Get Your Medium-Duty Truck Serviced Right
Technicians who work on medium-duty trucks every day, not once in a while.