About The Position

Cox Fleet, a Cox Automotive business, provides maintenance, repair, and fleet support for light-duty vehicles through Class 8 trucks and 53-foot trailers. The Mobile Diesel Mechanic II works independently in the field, performing mobile service, maintenance, inspections, diagnostics, and repairs on light-, medium-, and heavy-duty vehicles and trailers. The assigned service vehicle may be taken home. The role requires managing a daily schedule, parts inventory, service-truck equipment, customer needs, repair documentation, and communication with management and support teams. Work must comply with company safety, health, and environmental policies and applicable OSHA, EPA, and DOT requirements. A $5,000 new-hire bonus is offered, paid 50% after 30 days and 50% after 180 days.

Requirements

  • High school diploma or GED and five years of experience in a related field; alternatively, a degree or certification beyond a high school diploma/GED in a related discipline and three years of related experience, or seven years of related experience.
  • Possess and provide a set of hand tools necessary to perform the job duties.
  • Complete all company-required training.
  • Successfully complete and pass a DOT-regulated pre-employment background screening and DOT physical before employment; a current DOT medical card with more than four months remaining may be submitted in lieu of a DOT physical.
  • Be at least 21 years old due to interstate operating-authority commerce regulations.
  • Have a valid driver’s license in the state of residence and be able to obtain and maintain a Driver Qualification File.
  • Ability to lift, bend, climb, stand, and walk for extended periods and perform moderately heavy labor.
  • Ability to exert oneself physically over extended periods, including performing repetitive tasks.
  • Communicate information succinctly and in an organized manner and engage in effective two-way communication.
  • Determine the tools and equipment needed for a task.
  • Judge relative distance and depth accurately.
  • Use logic and reasoning to assess alternative solutions, conclusions, or approaches to problems.
  • Understand how new information affects current and future problem-solving and decision-making.

Nice To Haves

  • OEM training and certifications are preferred.
  • ASE T2 (Diesel Engines) certification.
  • ASE T3 (Drivetrain) certification.
  • ASE T4 (Brakes) certification.
  • ASE T5 (Suspension) certification.
  • ASE T6 (Electrical and Electronic Systems) certification.
  • ASE T7 (HVAC) certification.
  • ASE A8 (Engine Performance) certification.
  • ASE L1 (Advanced Engine Performance Specialist) certification.
  • ASE L2 (Electronic Diesel Engine Diagnosis Specialist) certification.
  • ASE T8 (PMI) certification.
  • ASE 608/609 certification.

Responsibilities

  • Perform scheduled preventive maintenance, DOT inspections, and follow-up repairs on light-, medium-, and heavy-duty vehicles in a mobile or field environment.
  • Perform minor adjustments and repairs on trailer equipment and systems, including trailer brakes, air lines, auxiliary pumps and engines, liftgates, and brake chambers.
  • Perform minor adjustments and repairs on truck equipment, including electrical, brake, and cooling systems; starters and alternators; fan clutches; engine electronics; steering systems; gas and diesel engines; transmissions; clutches; and differentials.
  • Diagnose, adjust, and repair trailer equipment and systems, including welding, fabrication, and replacement of panels, body components, and framework.
  • Diagnose, adjust, and repair truck equipment and systems, including air conditioning, electrical, brake, and cooling systems; starters and alternators; fan clutches; engine electronics; steering systems; engines; transmissions; clutches; and differentials.
  • Inspect, test, and listen to defective equipment to diagnose malfunctions using tools such as handheld computers and pressure gauges.
  • Road-test vehicles to diagnose malfunctions and confirm proper operation.
  • Identify problems and evaluate relevant information and alternative solutions using sound judgment.
  • Manage parts inventory and equipment on the company-issued service truck and perform periodic reconciliations.
  • Maintain and operate the company-issued service vehicle, conduct safety checks, and complete daily pre- and post-trip inspections.
  • Work effectively with clients and customers to assess needs, provide information or assistance, resolve problems, and meet expectations.
  • Manage concurrent assignments and prioritize work activities and time effectively.
  • Use hand tools, precision instruments, diesel tools, welding equipment, lifts, and jacks.
  • Document work to company standards and upload photos of work performed, parts used, and findings to repair orders using a company-issued iOS device and the TRAIT application.
  • Complete DOT forms and other documentation accurately and on time.
  • Work independently, manage a daily schedule, and maintain productivity within or close to Standard Repair Times.
  • Obtain parts from approved local and national vendors as needed.
  • Communicate with management and support teams by email or phone to obtain estimate approvals, retrieve purchase order numbers, and discuss repair-order findings.
  • Perform work in compliance with organizational safety, health, and environmental policies and federal regulations, including OSHA, EPA, and DOT requirements.

Benefits

  • $5,000 new-hire bonus, with 50% paid after 30 days and 50% after 180 days.
  • Weekly pay.
  • Safe-driving and technology-efficiency bonuses.
  • Reimbursement for safety boots and safety glasses.
  • Extreme-weather gear for cold and hot conditions.
  • Uniforms provided, with laundry service where available.
  • Assigned service truck may be taken home daily.
  • Company-provided tablet and cellphone.
  • Technical training and a dedicated career path.
  • Health, dental, and vision insurance starting on the first day of employment.
  • 401(k) matching after 90 days: 100% match up to a 6% contribution, plus an additional 2% discretionary company contribution.
  • Accrue up to 200 hours (five weeks) of paid time off based on tenure.
  • Tuition assistance or reimbursement.
  • Adoption and surrogacy assistance.
  • Pet insurance.
  • Employee resource groups, diversity groups, and company-paid volunteer hours.
  • Employee discounts on vehicle purchases, cellphone plans, ridesharing, home and rental insurance, and other offerings.
  • Wellness and fitness incentives.
© 2026 Teal Labs, Inc
Privacy PolicyTerms of Service