Your International Truck Deserves More Than Just Another Repair Shop
It’s 6 a.m., the crew is waiting, and your International won’t build air pressure. Or the check engine light popped on halfway through a haul and now the truck is derating power right when you need it most. You already know what that means: a day off the road, a stack of jobs sliding, and a crew standing around looking at you for answers you don’t have yet. That’s not a maintenance headache. That’s your livelihood on the line.
Note: Large vehicles like this are serviced at our Greeley and Fort Morgan locations. Our Brighton shop handles cars and light trucks.
At Bullet Automotive & Diesel, 624 13th St., Greeley, CO 80631 | 100 Walnut St., Fort Morgan, CO 80701, we work on International trucks every week — the DuraStar, the LoneStar, the LT and RH series, the old ProStar workhorses. Our ASE Certified Technicians know these DT and MaxxForce engines, the emissions systems, and the air brake setups that shops without real diesel experience can’t touch. When we tell you what’s wrong, we tell you straight, in plain English, with a plan to get you back on the road fast.
Why International Owners in Greeley and Fort Morgan Choose Bullet Automotive & Diesel
We Speak Your Language, Not Mechanic Jargon
You know your way around an engine. You don’t need to be talked down to, and you don’t need a wall of shop-talk designed to confuse you into a bigger bill. We explain what the codes actually mean, what’s failing, and why — the way you’d want a straight-shooting buddy to tell you.
- A clear, plain-English explanation of what we found and what’s causing it
- A written estimate before any wrench turns
- Priority tiers so you know what’s a safety must-fix now versus what can wait
- Honest turnaround estimates so you can plan your jobs around downtime
You leave knowing exactly what was done and why — no nagging doubt that you got played.
International Expertise Without Dealership Pricing
The dealership treats you like a walking wallet and books your truck out for a week. We’re the independent alternative with real diesel chops — the diagnostic equipment, the training, and the hands-on hours on International medium- and heavy-duty trucks to fix it right the first time.
- True Diesel Experience on DT, MaxxForce, and Cummins-powered International rigs
- Fleet Maintenance Repair Specialists who keep multiple trucks on schedule
- Comprehensive Multi-Point Vehicle Inspections that catch problems before they strand you
- Backed by a 12 month or 12,000 Mile Warranty on covered repairs
You get dealership-level knowledge without the dealership runaround or the sticker shock.
Transparency That Rebuilds Trust
You’ve been burned before. Maybe a shop found ten things wrong when you came in for one. Maybe the cheap garage missed the real problem and you were back in two weeks. We built this shop for the guy who’s tired of gambling on strangers.
- Written estimates you approve before work begins
- No surprise line items and no upsell on parts you don’t need
- Updates while your truck is in the bay, not radio silence
- Over 800 5-Star Reviews from drivers and fleet owners who kept coming back
The goal is simple: be the shop you never have to second-guess again, for your truck and your whole fleet.
Comprehensive International Repair Services
International Maintenance Services
- Diesel oil and filter changes on the correct interval for your engine and duty cycle
- Fuel filter and water separator replacement
- Coolant system service and DCA/SCA testing
- Air dryer and air system maintenance
- Belt, hose, and serpentine inspection and replacement
- Multi-point inspections and DOT-readiness checks
Staying ahead of service is the cheapest insurance against downtime. Our scheduled vehicle maintenance keeps your International running predictably through Colorado’s brutal temperature swings, from below-freezing mornings to summer heat that punishes a cooling system.
International Diagnostic and Repair Services
- Check engine and derate diagnostics with heavy-duty scan tools
- Diesel engine repair and overhaul
- Turbocharger and EGR repair
- Air brake and hydraulic brake repair
- Transmission and clutch service
- Suspension, steering, and front-end repair
When a warning light shows up, our vehicle diagnosis and repair pins down the actual root cause instead of throwing parts at it. From brake repair and replacement to transmission and drivetrain repair, we handle the systems that keep your International safe and loaded.
International Specialty Services
- DPF cleaning and replacement
- DEF and SCR emissions system repair
- MaxxForce and DT engine specialty diagnostics
- Fleet inspection programs and lift gate service
Modern International trucks carry emissions and electronic systems that a general garage can’t decode. Our diesel repair services cover the aftertreatment, fuel, and controls work that keeps these trucks legal and productive.
Model-Specific International Expertise
International DuraStar Service and Repair
The DuraStar is the medium-duty backbone of countless local fleets — box trucks, service rigs, and delivery units. We commonly address MaxxForce emissions faults, EGR cooler failures, and cooling system issues. We keep DuraStars on schedule so they don’t strand your driver mid-route.
International LT Series Service and Repair
The LT is the modern on-highway workhorse, often Cummins X15 powered. We handle aftertreatment diagnostics, DPF regen problems, air system faults, and electronic derate conditions. Our goal is fast, accurate turnaround so a highway tractor isn’t parked eating your revenue.
International LoneStar Service and Repair
The LoneStar is the classic long-nose over-the-road hauler. We service its heavy-duty diesel powertrain, cooling and charge-air systems, and air brakes. When you tow at elevation across Colorado’s mountain grades, these systems take a beating, and we know how to keep them dialed in.
International ProStar Service and Repair
Plenty of ProStars are still logging serious miles. Common concerns include MaxxForce or Cummins emissions repairs, fuel system service, and steering and suspension wear. We keep these older aero tractors running strong without a dealership-sized bill.
International RH Series Service and Repair
The RH regional tractor lives in stop-and-go, high-cycle work that’s hard on brakes, clutches, and cooling. We provide preventive maintenance and repair tuned to that duty cycle so uptime stays high and surprise breakdowns stay low.
Common Issues Across International Models
Across the International lineup, a handful of problems show up again and again. Here’s what we see most and how we handle it.
- Emissions and DPF faults: Failed regens, clogged DPFs, and SCR sensor problems trigger derates — we diagnose the true cause and clean or replace only what’s actually failed.
- EGR cooler and valve failures: Especially on MaxxForce engines, EGR issues cause overheating and rough running — we inspect, test, and repair the whole loop, not just the code.
- Cooling system stress: Colorado heat and mountain grades push radiators and water pumps hard — we pressure-test, flush, and replace failing components before they leave you overheated on a hill.
- Fuel system and injector wear: Hard starts, rough idle, and lost power often trace to fuel delivery — we test injectors and the high-pressure system to find the real fault.
- Air brake and air system leaks: Slow air build and dragging brakes are safety issues we take seriously, repairing dryers, valves, and lines to spec.
- Electrical and sensor gremlins: Intermittent codes and dead accessories waste hours if you guess — our diagnostics trace the actual circuit instead of swapping parts.
The Bullet Automotive & Diesel Difference for International Owners
You need a shop that treats your truck like the income-earner it is — and treats you like someone who knows better than to be handed a runaround.
- Respects your time with efficient service and honest turnaround estimates
- Respects your money with written estimates and no surprise line items
- Respects your knowledge by explaining problems in plain English, never talking down
- Respects your fleet with maintenance programs that keep every truck on the road
The first repair earns your trust. The relationship after that is what keeps your International — and your business — moving for years.
Service Areas We Serve
International drivers and fleet owners across the Front Range and eastern plains count on us for straight-shooting diesel repair.
- Greeley — our Greeley and Fort Morgan shops
- Greeley — full-service diesel and fleet repair in northern Colorado
- Fort Morgan — trusted truck service for the eastern plains
- Fort Lupton — medium- and heavy-duty repair close to home
- Commerce City — convenient fleet and diesel support
- Henderson — reliable service for local haulers
Schedule Your International Service Today
Whether your International is throwing a derate, due for scheduled maintenance, or part of a fleet you can’t afford to sideline, we’re ready to shoot straight and get you rolling. Bring it to Bullet Automotive & Diesel and get a real answer from technicians who work on these trucks every week.
Bullet Automotive & Diesel
Greeley: 624 13th St., Greeley, CO 80631 · 970-415-8018
Fort Morgan: 100 Walnut St., Fort Morgan, CO 80701 · 970-867-2519
See what your neighbors are saying and get directions on our Greeley reviews page. When your International needs to be back on the road fast, call 970-415-8018 — because we always shoot straight.