Mobile Diesel Mechanic II

Shift - 11:00 am - 11:00 pm

Headquartered in Indianapolis, Cox Fleet has grown to become one of the largest fleet maintenance companies in the country. Cox Fleet is the leading provider of on-site mobile maintenance and repair services nationwide, offering mobile on-site fleet service for light, medium, and heavy‑duty trucks and trailers. Cox Fleet also services customers utilizing its 50+ nationwide service centers, each offering accident repair, painting, refurbishment, and heavy mechanical repair.

We are supported by a 24/7 in‑house call‑center and provide scheduled maintenance services and unscheduled services to fleets anywhere, anytime.

Cox Fleet is currently hiring a Mobile Diesel Technician II.

• 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, fan clutches, engine electronics, diesel steering systems, engines (gas and diesel), transmissions (manual and automatic), clutches, differentials, etc.
• Diagnose, adjust, and repair truck equipment, including electrical, brake, cooling systems, air conditioning, fan clutches, engine electronics, diesel steering, engines, transmissions, clutches, differentials, etc.
• Inspect, test, and listen to defective equipment to diagnose malfunctions using test instruments such as handheld computers and pressure gauges.
• Road test vehicles to diagnose malfunctions and ensure proper operation.
• Identify problems, determine accuracy and relevance of information, and evaluate alternatives using sound judgment.
• Manage parts inventory and equipment on company‑issued service truck, performing periodic reconciliation.
• Maintain and operate the company‑issued service vehicle, conducting safety checks and pre‑/post‑trip inspections.
• Work with clients to assess their needs, providing assistance and resolving problems.
• Prioritize concurrent assigned tasks and manage time allocations efficiently.
• Use hand tools, precision instruments, diesel tools, welding equipment, lifts, and jacks.
• Document work according to company standards and upload pictures, parts used, and findings on Repair Orders using an iOS device and the proprietary TRAIT application.
• Accurately complete DOT forms and all other documentation in a timely fashion.
• Work independently and manage daily schedule.
• Maintain a high level of productivity and work within or close to most Standard Repair Times.
• Obtain parts from approved local and national vendors as necessary for repairs.
• Communicate with management and support team via email or phone to obtain repair estimate approvals, retrieve purchase order numbers, and discuss Repair Order findings.
• Perform all work in compliance with safety, health, environmental policies, and federal regulations (OSHA, EPA, DOT).
• Maintain the company‑issued service truck and conduct safety checks and daily pre/post trip inspections.

• High School Diploma/GED and 3 years’ experience in a related field. Alternative combinations include a degree/certification beyond a HS diploma/GED; or 5 years’ experience.
• At least 3 years of experience with refrigerated equipment.
• Possess and supply a set of hand tools necessary for required duties.
• OEM training and certifications are preferred.
• Participate in and complete all company‑required training.
• Ability to successfully complete and pass a DOT‑regulated pre‑employment background screening and DOT physical.
• A current and valid DOT medical card with more than four (4) months remaining may be submitted in lieu of a DOT physical.
• Candidates must be at least 21 years of age.
• Valid driver’s license required; candidate must maintain a Driver Qualification File.

• ASE T8 (PMI) certification
• ASE 608/609 certification*

• 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…