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Heavy Duty Diesel Technician Truck Mechanic

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Job Description - Heavy Duty Diesel Technician Truck Mechanic

Overview

A well-established, family-style heavy-duty truck service shop with over 40 years in the Wisconsin and Illinois transportation industry is seeking an experienced Diesel Technician. This is a small, highly skilled team environment where technicians work independently, are trusted with complex repairs, and are supported through ongoing OEM-level training.

We are looking for a seasoned technician with strong diagnostic ability and hands-on experience in full-scope diesel truck repair.

Key Responsibilities

  • Diagnose and repair heavy-duty diesel trucks (all-makes)
  • Perform repairs on engines, transmissions, differentials, driveline, steering, suspension, and air/hydraulic brake systems
  • Complete major engine repairs, including injectors, pistons, liners, heads, camshafts, bearings, and related components
  • Use diagnostic tools/software to troubleshoot mechanical and electrical systems
  • Inspect vehicles and determine required safety or additional repairs
  • Perform road tests to verify repair quality and performance
  • Accurately document repair orders and service recommendations
  • Maintain compliance with OEM, dealership, and safety standards
  • Work efficiently while ensuring high-quality workmanship

Required Qualifications

  • 5+ years of hands-on experience as a Diesel Technician / Heavy-Duty Truck Mechanic
  • Strong diagnostic and electrical troubleshooting skills using scan tools/computer systems
  • Proven experience with engines, transmissions, differentials, driveline, brakes, and suspension systems
  • Ability to complete full repair cycles independently (diagnosis through completion)
  • Must own a full professional toolset
  • Valid driver's license with a clean driving record
  • Ability to obtain a CDL (if required for duties)
  • High school diploma or equivalent (technical training preferred)

Preferred Qualifications

  • ASE certifications and/or OEM training (International, Cummins, etc.)
  • EPA 608/609 certification
  • Experience in dealership or fleet maintenance environments
  • Strong tenure in previous diesel/heavy-duty technician roles
  • Experience mentoring or supporting junior technicians

Work Environment

  • Small shop (low micromanagement, tight-knit team)
  • Lead-level technician responsibilities
  • Independent work with full accountability for repair quality
  • Ongoing OEM-certified training and skill development
  • Stable, long-term employment environment

Schedule & Benefits

  • Monday–Friday schedule (no nights, no weekends)
  • First-shift daytime hours
  • Tool and work boot allowance
  • Continuous internal and OEM training programs
  • Supportive, family-oriented shop culture
Original job Heavy Duty Diesel Technician Truck Mechanic posted on GrabJobs ©. To flag any issues with this job please use the Report Job button on GrabJobs.
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