Diesel Power, Expert Precision—Keep Your Fleet Running Strong

Diesel & Heavy-Duty Maintenance Services Serving NY, NJ & PA

When it comes to diesel trucks and heavy-duty vehicles, maintenance isn’t optional—it’s essential. At Automotive Ingenuity HD, we specialize in keeping your diesel engines and commercial fleets performing at their best. Whether you run a single truck or manage a full-scale operation, we’ll help you minimize downtime, avoid costly repairs, and stay road-ready year-round.

 

We proudly serve customers across:
Orange County, Rockland County, Putnam County, Dutchess County, Westchester County, Sullivan County, Ulster County, Passaic County (NJ), Bergen County (NJ), Sussex County (NJ), and Pike County (PA).

Black Ford truck parked in snow.

Why Choose Automotive Ingenuity HD?

Diesel experts—Our technicians know heavy-duty diesel systems inside and out, from powertrains and turbos to emissions and electronics.

Fleet-focused programs—We tailor maintenance plans to your fleet size, mileage, and workload.

Local and trusted—Based in Unionville, NY, we proudly serve the tri-state area with integrity and precision workmanship.

Top-tier tools & diagnostics—We use industry-grade diagnostic systems to pinpoint issues before they cost you.

Preventive mindset—Every maintenance plan is designed to reduce downtime, extend component life, and keep your vehicles compliant and efficient.

Comprehensive Diesel Maintenance Services

Our diesel maintenance programs cover every critical system on your truck or fleet vehicle:

Silver Dodge Ram pickup truck with black wheels parked outside.

Oil & Filter Changes—Premium-grade diesel oils and filters, serviced to manufacturer specs for long-term engine protection.

Close-up of a silver-colored metal surface with the

Fuel System Care—Fuel filter replacements, line inspections, and injector cleaning to maintain power and efficiency.

Blue-modified truck engine bay with custom air intake and piping, open hood, outdoors.

Cooling System Checks—Radiator, water pump, thermostat, and coolant flushes to prevent overheating.

Blue engine block assembly on a stand. Shows the engine with several components attached.

Transmission & Driveline Maintenance—Fluid service, seals, linkages, and component inspections to prevent costly rebuilds.

Car wheel with brake components removed, showing a rusty brake rotor and caliper.

Brake & Suspension Service—We inspect pads, drums, air systems, shocks, springs, and suspension mounts.

Green circuit board with components and sealant.

Electronic Diagnostics—Full computer scanning to identify sensor, ECM, and emission-related issues.

White Ford F-350 dually pickup truck parked next to a red building with a garage door, gravel driveway.

Exhaust & Emissions Systems—DEF systems, DPF cleaning, and exhaust repairs for EPA compliance.

A person working under a lifted silver truck. Red jack stands. Outdoors setting.

Custom Fleet Programs—Scheduled service intervals, maintenance tracking, and bulk service options for commercial clients.

Areas We Serve

Automotive Ingenuity HD is proud to provide diesel and heavy-duty maintenance services throughout:

  • New York – Orange County, Rockland County, Putnam County, Dutchess County, Westchester County, Sullivan County, Ulster County
  • New Jersey – Passaic County, Bergen County, Sussex County
  • Pennsylvania – Pike County

From Middletown to Mahwah, Poughkeepsie to Port Jervis, Newburgh to Newton, and everywhere in between—our mobile support and towing options ensure your trucks stay on the move.

Two yellow CAT fuel filters mounted beneath a vehicle, connected with blue tubing and black hardware.
Engine bay of a vehicle with a large turbocharger and battery. Hood open, visible wiring and components.

Benefits of Routine Diesel Maintenance

  • Reduced Downtime—Less time in the shop, more time earning.
  • Lower Operating Costs—Prevent big repairs through proactive service.
  • Better Fuel Efficiency—Clean systems and fresh fluids mean optimized performance.
  • Safety & Compliance—Stay inspection-ready and avoid out-of-service violations.
  • Longer Engine Life—Proper care keeps your diesel powertrain running strong for years.

Fleet Maintenance Plans

We know commercial operations rely on predictability. That’s why Automotive Ingenuity HD offers custom fleet maintenance programs across NY, NJ, and PA—with detailed reporting, regular intervals, and service records that simplify compliance and budgeting.

Our goal: Fewer surprises. More uptime. Stronger profit margins.

How It Works

  1. Schedule an Appointment—Call or request a quote online to discuss your vehicle or fleet.
  2. Diagnostic Inspection—We inspect, test, and document your truck’s current condition.
  3. Custom Maintenance Plan—You receive a detailed service plan with clear recommendations.
  4. Perform & Track Services—We complete the maintenance and provide full records.
  5. Follow-Up & Next Steps—We remind you when the next service is due to keep your schedule simple.
White Frontier truck with the hood open in a garage, next to a welding tank.

Ready to Keep Your Diesel Fleet Running Strong?

Don’t wait until you’re sidelined by preventable breakdowns. Partner with Automotive Ingenuity HD for professional diesel maintenance that protects your investment and keeps your business moving.

Call (845) 683-1443 or visit automotiveingenuityhd.com to schedule your diesel service today.

FAQs

  • Q: How often should diesel trucks be serviced?

    A: Most diesel trucks benefit from service every 5,000–10,000 miles depending on workload, terrain, and usage. We’ll create a schedule tailored to your needs.

  • Q: Do you handle fleets across multiple counties?

    A: Absolutely. We service fleets across all 11 counties in NY, NJ, and PA with scalable maintenance plans.

  • Q: Can you diagnose electronic and emissions issues?

    A: Yes — we use advanced diagnostics to detect sensor, fuel, and emissions system faults early to prevent major repairs.—we

Book Trusted Diesel Diagnostics and Repair Today

Call (845) 683-1443 now to schedule your diesel service or comprehensive fleet appointment—experience the commitment, skill, and customer care every hard-working diesel driver deserves.