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Sr. Mobile Diesel Technician

Job in Portsmouth, Virginia, 23703, USA
Listing for: Fleet Services by Cox Automotive
Full Time position
Listed on 2026-02-16
Job specializations:
  • Transportation
Salary/Wage Range or Industry Benchmark: 60000 - 80000 USD Yearly USD 60000.00 80000.00 YEAR
Job Description & How to Apply Below

Overview

Fleet Services – A Cox Automotive Company keeps your fleet moving. Headquartered in Indianapolis, Fleet Services is one of the largest fleet maintenance companies in the country and provides on-site mobile maintenance and repair services nationwide, plus 50+ nationwide service centers offering accident repair, painting, refurbishment, and heavy mechanical repair. A 24/7 in-house call center supports scheduled and unscheduled maintenance for fleets anywhere, anytime.

Position:
Mobile Diesel Technician Level II
. This role is a mobile/field position with 100% travel and on-site service at customer locations. A service truck and gas card are provided.

Travel:
Yes, 100% of the time, but no overnights.

Responsibilities
  • Perform scheduled preventive 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 truck equipment (Electrical/Brake/Cooling Systems, Starters/Alternators, Fan clutches, Engine electronics, Diesel steering systems, Engines, Transmissions, Clutches, Differentials, etc.).
  • Diagnose, adjust, and repair vehicle systems and components, including electrical, air conditioning, and other drivetrain elements.
  • Inspect, test, and listen to defective equipment to diagnose malfunctions using test instruments (handheld computers, pressure gauges).
  • Road test vehicles to diagnose malfunctions and verify proper operation.
  • Identify problems, evaluate information, and generate/assess alternatives with sound judgment.
  • Independently manage parts inventory and maintain the company-issued service truck; perform periodic reconciliations.
  • Maintain and operate the service vehicle, conduct safety checks, and perform pre-/post-trip inspections.
  • Collaborate with clients to assess needs and provide information, assistance, and problem resolution.
  • Manage concurrent tasks, prioritizing work and time allocation effectively.
  • Use hand tools, precision instruments, Diesel tools, welding equipment, lifts and jacks.
  • Document work according to company standards and upload RO details, parts used, and findings using a company-issued iOS device and TRAIT application.
  • Accurately complete DOT forms and other documentation in a timely fashion.
  • Work with a high degree of independence and manage own daily schedule.
  • Maintain high 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 on repair estimates and discuss RO findings.
  • Perform all work in compliance with safety, health, environmental policies and regulations (OSHA, EPA, DOT).
  • Maintain the company-issued service truck, conduct safety checks, and daily pre-/post-trip inspections.
Requirements
  • High School Diploma/GED and 3 years of related experience.
  • Alternative combinations allowed: any level degree/certification beyond HS in a related discipline; or 5 years of related experience.
  • Possess and provide a set of hand tools necessary to perform duties.
  • Obtain Automotive Service Excellence (ASE) certification T8 (PMI) within 18 months.
  • Comply with DOT/FMCSA regulations.
  • Pass a DOT-regulated pre-employment background screening and DOT physical prior to employment; a valid DOT medical card may be submitted in lieu of a DOT physical if it has more than 4 months remaining.
  • Minimum age 21 due to interstate commerce regulations; valid driver’s license and ability to obtain/maintain Driver Qualification File.
Required Certifications or Within 18 Months
  • ASE T8 (PMI) certification
Preferred Certifications
  • ASE T3 (Drivetrain)
  • ASE T4 (Brakes)
  • ASE T5 (Suspension)
  • ASE T6 (Electrical and Electronic Systems)
  • ASE T7 (HVAC)
  • ASE 608/609 certification*
Skills & Abilities
  • Ability to interpret new information and apply it to problem-solving and decision-making.
  • Physical ability to lift, bend, climb, stand, and walk for long periods; perform moderately heavy work.
  • Endurance to work for long periods and perform repetitive tasks.
  • Effective, concise communication and two-way interaction with individuals and groups.
  • Ability to determine required tools and equipment.
  • Spati…
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