Preventive Maintenance
A & B Service for Diesel Trucks and Fleets
Welcome
Mobile Preventive Maintenance for Heavy-Duty Trucks, Trailers, and Equipment
NoCo Diesel Services LLC provides structured preventive maintenance (PM) services for diesel trucks, trailers, and heavy-duty equipment across Northern Colorado, Southern Wyoming, and Western Nebraska. Based in Johnstown, CO, we bring A & B service directly to your location—whether you're a fleet manager or an independent owner-operator.
Our mobile PM program keeps your vehicles running longer, reduces unplanned breakdowns, and ensures compliance with DOT and OEM standards. We work on all Class 6–8 trucks, vocational vehicles, trailers, and construction equipment.
Why Preventive Maintenance Matters
Preventive maintenance is the foundation of reliable truck operation. It extends equipment life, improves fuel economy, reduces the risk of roadside breakdowns, and helps avoid costly emergency repairs. PM service also supports DOT compliance and warranty protection.
At NoCo Diesel Services, we help you stay ahead of problems by inspecting, servicing, and tracking critical components before they fail.
PM Services for Fleets of All Sizes
Whether you're running five trucks or fifty, we offer scalable PM programs to match your fleet’s operation, usage, and manufacturer recommendations.
Benefits of fleet PM services include:
- Improved vehicle uptime and performance
- Reduced emergency repair costs
- Better fuel efficiency
- Lower total cost of ownership
- Compliance with DOT regulations
- PM logs for maintenance tracking and reporting
- On-site service without disrupting daily operations
We work with dispatchers, service managers, and fleet owners to build custom PM schedules—monthly, quarterly, or mileage-based.
What’s Included in PM A and B Services
Our mobile preventive maintenance services follow manufacturer recommendations and industry best practices for Class 6–8 diesel trucks and equipment.
PM A Service (Basic Maintenance)
- Engine oil and filter change
- Chassis grease/lubrication
- Fluid level checks and top-offs (coolant, washer, power steering)
- Air filter inspection or replacement
- Tire pressure check and tread depth inspection
- Visual inspection of belts, hoses, and leaks
- Battery voltage and terminal check
- Lighting system check (headlights, markers, trailer lights)
- Brake adjustment check
- Hub oil level inspection
- Quick inspection for leaks or worn components
- DOT readiness review
PM B Service (Comprehensive Maintenance)
Includes everything in PM A, plus:
- Fuel filter replacement
- Full air system inspection
- Brake lining measurement
- Suspension component inspection (bushings, leaf springs, shocks)
- Wheel seal and hub inspection
- Detailed inspection of steering components
- Coolant condition test
- DEF level and system check
- Inspection of exhaust and aftertreatment components
- Detailed reporting for fleet tracking
- Service stickers and documentation
Mobile PM Service – We Come to You
We bring full-service preventive maintenance directly to:
Fleet yards and terminals
Owner-operator home bases
Drop lots and customer yards
Job sites and construction locations
Emergency roadside locations (if due for PM)
24/7 PM Scheduling and Flexible Service Hours
We understand that your operation doesn’t stop at 5 p.m. That’s why we offer after-hours PM service and weekend availability. We work around your fleet’s schedule to reduce downtime and ensure that maintenance gets done—without affecting delivery times or productivity.
Certified and Experienced Diesel Technicians
Our technician brings over 15 years of diesel repair experience, including work at International dealerships and Kenworth factory training. We follow OEM guidelines, use premium fluids and filters, and ensure every service is completed to a professional standard.
Welcome
Preventive Maintenance for More Than Trucks
Our PM programs extend to:
- Semi-trailers (reefer, flatbed, dry van)
- Box trucks and delivery vehicles
- Dump trucks and construction equipment
- Utility and service trucks
- Heavy-duty vocational trucks
- Diesel-powered generators
Stay Ahead of Breakdowns – Schedule PM Today
Prevent costly repairs, reduce downtime, and stay DOT-compliant with structured preventive maintenance from NoCo Diesel Services LLC. We make it easy to schedule A or B services on your terms.