ENCINA POWER INC. — Chicagoland Regional Division · I-55 / I-80 / I-294 Corridors
Fully Insured · $2,000,000 Commercial Liability
Fleet Preventive Maintenance
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
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
Each level builds on the one before it, so your trucks get the right depth of service at the right point in their cycle.

PM-A | Standard Routine Service
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

PM-B | OEM Intermediate Intervals
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


PM-C | Annual / High-Mileage Infrastructure Cycle
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

What We Service
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
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
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.
Will County and Chicagoland
From our Romeoville and Will County hub, we deliver on-site fleet maintenance and heavy duty truck repair along the I-55, I-80, I-355 and I-294 corridors. Whether your trucks sit at an Elwood intermodal yard or a distribution hub in Bolingbrook, our service units come to you.
PM Program FAQ
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.
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.
Pricing is provided through a custom proposal, following a complimentary yard audit. That way it reflects your unit count, equipment mix and schedule.
Parts, fluids and consumables are billed separately as line items on each work order.
Yes. We service fleets across the Joliet and Elwood intermodal corridor, along with Romeoville, Bolingbrook, Plainfield and the wider Will County and Chicagoland area.
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
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.
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