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Diesel Mechanic

ExpressPros - Duncan, OK

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$20-30 /h
PAY RATE
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Duncan, OK
LOCATION

Job Description

As posted by the hiring company

Job Overview:

Key Responsibilities

Diagnostics & Troubleshooting

  • Perform advanced diagnostics on diesel engines, aftertreatment systems (DPF, DEF, SCR), and electronic control systems.
  • Identify root causes of performance issues using OEM diagnostic software (e.g., Cummins Insite, Detroit Diesel DiagnosticLink, CAT ET).
  • Troubleshoot and repair electrical wiring, CAN bus systems, and multiplexing issues.

Mechanical Repair & Maintenance

  • Conduct major engine repairs and overhauls, including injectors, turbochargers, fuel systems, and valve adjustments.
  • Service and repair transmissions (automatic & manual), clutches, differentials, and driveline components.
  • Perform brake system repairs (air brakes, ABS, slack adjusters) in compliance with DOT regulations.
  • Handle suspension, steering, and chassis repairs on heavy‑duty trucks and trailers.

Preventive Maintenance

  • Execute full PM inspections, lubrication services, and DOT required inspections.
  • Document all service, parts, and labor with accuracy and detail.
  • Identify potential failures and recommend corrective action to prevent breakdowns.

Technical & Safety Compliance

  • Interpret technical manuals, wiring diagrams, and schematics.
  • Ensure all repairs meet OEM specifications and safety standards.
  • Maintain a clean, organized, and safe work environment.
  • Follow all OSHA, EPA, and DOT guidelines.

You should be proficient in:

  • Electrical Systems Diagnostics & Repair
  • Diesel Engine Systems
  • Equipment/Parts Counter Sales
  • Engine Repair
  • Light Vehicle Diesel Engines
  • Service
  • Fuel Systems

Machines & technologies you'll use:

  • Diesel engine
  • Diesel Vehicles