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Sr Mobile Diesel & Trailer Mechanic

Job in Fort McKavett, Menard County, Texas, USA
Listing for: Cox Automotive Inc.
Full Time position
Listed on 2026-01-02
Job specializations:
  • Trades / Skilled Labor
    Diesel Mechanic, Heavy Equipment Mechanic
Job Description & How to Apply Below
Location: Fort McKavett

Overview

Join to apply for the Sr Mobile Diesel & Trailer Mechanic role at Cox Automotive Inc.

Fleet Services - a Cox Automotive Company keeps your fleet moving. Headquartered in Indianapolis, Fleet Services has grown to become one of the largest fleet maintenance companies in the country and provides on-site mobile maintenance and repair services nationwide for light, medium, and heavy-duty trucks and trailers.

Responsibilities
  • Perform scheduled preventative maintenance (PM), DOT inspections and follow-up repairs on light, medium and heavy-duty vehicles in a mobile/field environment.
  • Perform minor adjustments and repairs on various truck equipment including electrical, brake, cooling systems, starters/alternators, engine electronics, diesel steering, engines (gas and diesel), transmissions, clutches, differentials, and related components.
  • Diagnose, adjust, and repair electrical, brake, cooling, engine electronics, air conditioning systems, steering, transmissions, clutches, and other truck equipment as needed.
  • Inspect, test, and listen to defective equipment to diagnose malfunctions using test instruments (handheld computers, pressure gauges).
  • Road test vehicles to diagnose malfunctions and ensure proper operation.
  • Identify problems, assess information for accuracy, and generate/evaluate alternatives with sound judgment.
  • Independently manage parts inventory and equipment on the company-issued service truck and perform periodic reconciliation.
  • Maintain and operate the company-issued service vehicle, perform safety checks, and conduct pre-/post-trip inspections.
  • Work with clients to assess needs, provide information or assistance, resolve problems, and meet expectations.
  • Manage concurrent tasks with effective prioritization and time management.
  • Use hand tools, precision instruments, Diesel tools, welding equipment, lifts and jacks.
  • Document work according to company standards and upload photos of work performed, parts used, and findings on Repair Orders using the TRAIT application on an iOS device.
  • Complete DOT forms and other documentation in a timely manner.
  • Work with a high degree of independence and manage own daily schedule.
  • Maintain productivity and operate within or close to standard repair times.
  • Obtain parts from approved local and national vendors as needed for repairs.
  • Communicate with management and support teams to obtain approvals for repair estimates, retrieve purchase order numbers, and discuss RO findings.
  • Perform all work in compliance with safety, health and environmental policies and applicable regulations (OSHA, EPA, and DOT).
  • Maintain the company-issued service truck and conduct safety checks and daily pre-/post-trip inspections.
Qualifications
  • High School Diploma/GED and 3 years' related experience; or alternative combinations such as higher-level degree/certification in a related discipline; or 5 years' related experience.
  • At least 3 years of experience with refrigerated equipment.
  • Possess and provide a set of hand tools necessary to perform job duties.
  • OEM training and certifications are preferred.
  • Ase L2 preferred but not required.
  • Participate in and complete all required company training.
  • DOT regulations compliance: able to pass pre-employment background screening and DOT physical; DOT medical card may be substituted under conditions described in the original posting.
  • Must be at least 21 years old due to interstate regulations; valid driver’s license and ability to obtain/maintain a Driver Qualification File.
Required Certifications Or Obtained Within 18 Months
  • ASE T8 (PMI) certification
  • ASE 608/609 certification
Preferred Certifications
  • ASE T2 (Diesel Engines)
  • ASE T3 (Drivetrain)
  • ASE T4 (Brakes)
  • ASE T5 (Suspension)
  • ASE T6 (Electrical and Electronic Systems)
  • ASE T7 (HVAC)
  • ASE A8 (Engine Performance)
  • ASE L1 (Advanced Engine Performance Specialist)
  • ASE L2 (Electronic Diesel Engine Diagnosis Specialist)
Skills & Abilities
  • Understand implications of new information for current and future problem-solving and decision-making.
  • Ability to lift, bend, climb, stand, and walk for long periods and perform moderately heavy labor.
  • Physically able to exert oneself over long periods, including repetitive tasks.
  • Communicate…
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