Journeyman Diesel Mechanic

Interstate PowerSystems; Carol Stream (IL); On-site; USD 65,000 - 90,000; Full time

Benefits offered by this job

Competitive compensation

Uniforms

Union Health Benefits

401(k) with company match

Job summary

A leading heavy-duty vehicle service provider in Carol Stream, Illinois is seeking a Journeyman Diesel Truck Mechanic/Technician to join their service team. Candidates should have over 5 years of experience in diesel truck repairs and a strong understanding of diesel mechanics and hydraulic systems. Responsibilities include diagnosing, repairing, and maintaining a variety of diesel trucks. Attractive compensation includes competitive wages, uniforms, and union health benefits.

Qualifications

• 5+ years of experience repairing and maintaining heavy-duty diesel trucks.
• Ability to read and interpret technical manuals and wiring diagrams.
• Valid driver's license required; CDL preferred.

Responsibilities

• Diagnose complex mechanical and electronic systems on diesel trucks.
• Conduct routine preventive maintenance and repairs.
• Communicate repair needs to fleet managers and drivers.
• Communicate with fleet managers to explain repairs and provide maintenance recommendations.
• Ensure safety compliance and maintain organized tools and equipment.

Skills

In-depth knowledge of diesel engines

Proficiency with diagnostic tools

Strong problem-solving skills

Excellent communication skills

Basic welding and fabrication skills

Reading schematics

Customer service

Education

High school diploma or equivalent

Technical diploma in diesel mechanics

Tools

Cummins Insite

Detroit Diesel Diagnostic Link

OEM software

Hand tools

Power tools

Job description

Overview

Interstate Power Systems is looking for a Journeyman Diesel Truck Mechanic/Technician for our Carol Stream, Illinois location. We are currently seeking Journeyman Diesel Mechanic/Technician(s) to join our in-shop service team who are specializing in Freightliner, Detroit, Allison, Cummins, CAT products, MTU and more! We are offering highly competitive wages!

Responsibilities

• Diagnose and Repair: Troubleshoot complex mechanical, hydraulic, electrical, and electronic systems on heavy-duty diesel trucks using advanced diagnostic tools, schematics, and technical manuals (e.g., Cummins Insite, Detroit Diesel Diagnostic Link).
• Perform Maintenance: Conduct routine preventive maintenance, including oil changes, filter replacements, tire inspections, brake adjustments, and chassis lubrication to ensure truck reliability and compliance with federal and state regulations.
• Component Replacement: Replace or repair critical components such as diesel engines, transmissions, differentials, turbochargers, or brake systems.
• Welding and Fabrication: Perform minor welding, cutting, or fabrication tasks to repair or modify truck frames, bodies, or components as needed.
• Documentation: Complete detailed service reports, document parts used, and record maintenance activities for warranty, billing, DOT compliance, and inventory purposes.
• Customer Interaction: Communicate with fleet managers or drivers to explain repairs, provide maintenance recommendations, and ensure satisfaction with service.
• Safety Compliance: Adhere to OSHA, DOT, and company safety regulations, maintain a clean work environment, and follow manufacturer protocols.
• Tool and Equipment Management: Maintain and organize tools, service vehicles, and diagnostic equipment to ensure operational readiness for field service.

Qualifications

• Education: High school diploma or equivalent; technical diploma or certification in diesel mechanics or heavy-duty truck repair preferred.
• Experience: 5+ years of experience repairing and maintaining heavy-duty diesel trucks (e.g., Kenworth, Peterbilt, Freightliner, Volvo, or Mack).
• Skills:
  • In-depth knowledge of diesel engines, hydraulic systems, electrical systems, and electronic controls (e.g., ECM diagnostics).
  • Proficiency with diagnostic tools (e.g., Cummins Insite, Detroit Diesel Diagnostic Link, or OEM software) and hand/power tools.
  • Ability to read and interpret technical manuals, wiring diagrams, and hydraulic schematics.
  • Strong problem-solving skills and attention to detail.
  • Basic welding and fabrication skills (preferred).
  • Excellent communication and customer service skills for interacting with fleet managers and drivers.
• Certifications: Manufacturer-specific training (e.g., Cummins, Detroit Diesel, Paccar) or ASE Heavy Duty Truck certifications (e.g., T2–T8 series) are a plus.
• Physical Requirements: Ability to lift heavy parts (up to 50–75 lbs.), work in confined spaces (e.g., under truck chassis), and perform tasks in various weather conditions.
• Driver’s License: Valid driver’s license required; CDL (Commercial Driver’s License) with appropriate endorsements strongly preferred.
• Competitive compensation
• Uniforms
• Union Health Benefits as indicated in the Collective Bargaining Agreement
• 401(k) with company match

Interstate Companies is an Equal Opportunity Employer, and we encourage all qualified and interested persons to apply for this position by submitting a resume for consideration.