ENCINA POWER INC. — Chicagoland Regional Division · I-55 / I-80 / I-294 Corridors

Fully Insured · $2,000,000 Commercial Liability

DISPATCH 24/7

Fleet Preventive Maintenance

Scheduled Maintenance, Done at Your Yard

PM-A, PM-B and PM-C Programs for Commercial Fleets

The cheapest breakdown is the one that never happens. Our fleet preventive maintenance puts every truck on a set schedule by mileage or engine hours, with service performed at your terminal, staging yard or carrier hub during off-hours and weekend dwell time.

Why It Matters

Every Skipped PM Shows Up Later as a Tow Bill

A missed oil change becomes a seized component. A brake out of adjustment becomes an out-of-service violation at a roadside inspection. A loaded DPF becomes a derated truck on the I-80 shoulder at 2 a.m. Most breakdowns start weeks earlier as a maintenance item nobody had time for.

No Deadhead Miles: your trucks never leave the yard for service

No Driver Shop Hours: drivers run loads instead of waiting in a shop lobby

No Missed Intervals: automated schedules flag every mileage and engine-hour milestone

PM Programs

Three Levels of Fleet PM Service

Each level builds on the one before it, so your trucks get the right depth of service at the right point in their cycle.

Technician inspecting brakes, tires and lights on a semi tractor during a PM-A safety and DOT inspection

PM-A | Standard Routine Service

Safety, Electrical & DOT Fleet Inspection

Our routine fleet PM service focuses on the systems most likely to put a truck out of service at a roadside inspection.

  • Complete 60-point DOT physical inspection and brake stroke check / adjustment audit

  • Air brake leak-down test; governor cut-in / cut-out check; gladhand seal inspection

  • Full electrical / lighting diagnostic: battery load analysis, alternator output, starter draw, and external chassis / trailer wiring integrity

  • Fluid level verification and precision top-offs: DEF, extended-life coolant, power steering, and washer fluid

  • Tire assembly analysis: operating pressure check, digital tread depth measurement, uneven wear logging, and hub oil seal verification

Technician replacing fuel and oil filters on a heavy-duty diesel engine during a PM-B service

PM-B | OEM Intermediate Intervals

Engine Lubrication & Oil Service

Everything in PM-A, plus the engine and chassis lubrication that protects your most expensive components between major service intervals.

  • Heavy-duty engine oil evacuation and refill with OEM oil and OEM-grade filtration

  • Primary and secondary fuel filter replacement; fuel/water separator servicing

  • Multi-point chassis and driveline grease: kingpins, drag links, slack adjusters, U-joints, and fifth wheel assemblies

  • Engine air intake filter and cabin air filter inspection

Technician replacing fuel and oil filters on a heavy-duty diesel engine during a PM-B service
Technician connecting a diagnostic laptop to a truck’s DPF and SCR system during a PM-C service

PM-C | Annual / High-Mileage Infrastructure Cycle

Full Infrastructure, DPF & System Diagnostics

Our most complete service cycle. Everything in PM-A and PM-B, plus the drivetrain, emissions, cooling and running gear systems that drive major repair costs when they’re ignored.

  • Comprehensive ECM / TCM diagnostic health sweep

  • Managed DPF ash/soot forced regeneration

  • Transmission and differential fluid analysis and scheduled change-out

  • Cooling system pressure test, cap relief check, and drive belt / cooling hose integrity verification

  • Trailer air suspension bag assessment, ABS sensor / relay valve diagnostics, and full brake shoe / drum thickness audit

Mobile technician servicing a semi tractor at a fleet terminal yard with a row of trucks lined up behind

What We Service

One PM Program for Your Whole Yard

Fleet preventive maintenance shouldn’t stop at the tractor. Class 6-8 tractors, medium-duty fleets and commercial trailers, including dry van, reefer and flatbed structural PMs, all run on the same schedule under one agreement.

  • Class 6-8 Tractors

  • Medium-Duty Fleets

  • Dry Vans

  • Reefers

  • Flatbeds

  • Commercial Trailers

Go Further With a Retainer

Bundle Your PMs Into a Maintenance Program

Running PMs across a larger fleet? Our “Zero-Downtime” retainer programs combine scheduled PM labor, monthly 50-point yard safety audits and priority dispatch into one fleet maintenance contract. Tier 3 includes PM-C service labor on its annual / high-mileage cycle for units current on their PM schedule. Program pricing is provided with a proposal, following a complimentary yard audit.

Digital Transparency

Every PM Documented, Every Defect Photographed

Each PM is recorded in your Fullbay fleet portal, with photo and video for every inspection item. Defects found during service come to you with evidence attached, and you approve the repair with one click. Maintenance histories and DOT files sync automatically with QuickBooks Online, and Tier 3 fleets add live Samsara and Geotab fault-code monitoring.

PM Program FAQ

Fleet PM Questions, Answered

What’s the difference between PM-A, PM-B and PM-C?

PM-A is the routine safety, electrical and DOT inspection. PM-B adds full engine oil, fuel filter and chassis lubrication service at OEM intermediate intervals. PM-C is the annual or high-mileage cycle that adds ECM / TCM diagnostics, managed DPF regeneration, drivetrain fluid service, cooling system testing and a full running gear audit.

How do you schedule PMs for our fleet?

We set up automated PM schedules by mileage or engine hours, so no service milestone is missed. Service is performed at your yard during off-hours or weekend dwell time.

How is PM pricing set?

Pricing is provided through a custom proposal, following a complimentary yard audit. That way it reflects your unit count, equipment mix and schedule.

Are parts and fluids included?

Parts, fluids and consumables are billed separately as line items on each work order.

Do you offer fleet preventative maintenance in Joliet and Elwood?

Yes. We service fleets across the Joliet and Elwood intermodal corridor, along with Romeoville, Bolingbrook, Plainfield and the wider Will County and Chicagoland area.

What happens if a PM finds a problem?

You receive photo and video evidence in your Fleet Portal before any work is authorized. Approve the repair with one click and our technicians can complete it on site. Retainer accounts also have pre-authorized repair limits, established during enrollment.

Next Steps

Request Your Complimentary Fleet Yard Audit

Tell us about your fleet and we’ll schedule a 50-point yard audit at your location. Every finding is documented, and you’ll receive a customized fleet maintenance proposal built around your units. No cost and no obligation.

Dispatch 24/7
+1 (312) 274-3347
Roadside emergencies and urgent repairs

Email
[email protected]
Billing, DOT records and account support

ENCINA POWER INC. — Chicagoland Regional Division

Zero-Downtime Fleet Maintenance. 24/7 Mobile Repair & On-Site PMs for Class 6-8 fleets across the I-55, I-80 and I-294 corridors.

Contact

Dispatch 24/7:

+1 (312) 274-3347

Copyright © 2026 ENCINA POWER Inc. · National Fleet Infrastructure, Chicagoland Regional Division · Privacy Policy · Terms