Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Diesel Mechanic

Fleet Services by Cox Automotive

Mobile Diesel Technician Level II

Cox Fleet keeps your fleet moving! 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 Level II. The Mobile Diesel Technician Level II will be responsible for performing licensed DOT inspections, Preventative Maintenance inspections, light and follow-up repairs, light mechanical/hydraulic/electrical and electronic diagnostics, and other duties as assigned. The Diesel Technician II can perform more advanced diagnostics and repairs under the supervision of a Sr Mobile Diesel Technician or higher. The Diesel Technician II continues to learn additional advanced mechanical skills and diagnostic techniques. A successful Diesel Technician II complies with all company policies and achieves high level performance metrics.

Duties:
  • 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 adjustment and repairs on various types of truck equipment including, but not limited to the following: 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 various types of truck equipment including, but not limited to the following: Electrical/Brake/Cooling Systems, Starters/Alternators, Air conditioning systems, Fan clutches, Engine electronics, Diesel steering systems, Engines (gas and diesel), Transmissions (manual and automatic), 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 to ensure that they are working properly.
  • Identify problems, determine accuracy and relevance of information, using sound judgment to generate and evaluate alternatives.
  • Independently manage parts inventory and equipment provided on company-issued service truck and perform periodic reconciliation.
  • Maintain and operate company-issued service vehicle, conduct safety checks, and pre-/post-trip inspections of vehicle.
  • Work with and listen effectively to clients and customers to assess their needs, providing information or assistance, resolving their problems, or satisfying their expectations.
  • Manage concurrent assigned tasks, making effective judgments as to prioritizing work related activities and time allocations.
  • Use hand tools, precision instruments, as well as Diesel tools, welding equipment, lift and jacks.
  • Document according to company standards and upload pictures of work performed, parts used, and all findings observed on Repair Orders ("RO") using company-issued iOS device and our proprietary TRAIT application.
  • Accurately complete DOT forms and all other forms of documentation in a timely fashion.
  • Work with a high degree of independence and manage own daily schedule.
  • Maintain a high level of productivity and be able to work within or close to most Standard Repair Times.
  • Obtain parts from approved local and national vendors as necessary for the repairs to be performed.
  • Communicate with management and support team via email or phone to obtain approvals on repair estimates, retrieve purchase order numbers and/or discuss RO findings notes.
  • Perform all work in compliance with organizational safety, health and environmental policies, and federal regulations, to include OSHA, EPA, and DOT.
  • Maintain company issued service truck, conduct safety checks and daily pre/post trip inspections.
Requirements:
  • High School Diploma/GED and 3 years' experience in a related field. The right candidate could also have a different combination, such as any level degree/certification beyond a HS diploma/GED in a related discipline; or 5 years' experience in a related field.
  • Possess and supply a set of hand tools necessary to perform required job duties.
  • Obtain Automotive Service Excellence (ASE) certification T8 (PMI) within eighteen (18) months.
  • This position follows regulations issued by the Department of Transportation's (DOT) Federal Motor Carrier Safety Administration (FMCSA). Candidate must be able to successfully complete and pass a DOT-regulated pre-employment background screening and DOT physical prior to employment.
  • A current and valid DOT medical card with more than four (4) months remaining until its expiration may be submitted in leu of a DOT physical. If the DOT medical card has four (4) months or less of validity remaining, a DOT physical will be required.
  • Due to interstate operating authority commerce regulations, candidates must be at least 21 years or older.
  • Safe drivers needed; valid driver's license required. Candidate must hold a valid state-of-residence driver's license, be able to obtain and maintain their Driver Qualification File.
  • Class C Drivers License is required for this position.
Required Certifications or Obtained Within 18 Months:
  • ASE T8 (PMI) certification
Preferred Certifications:
  • ASE T3 (Drivetrain) certification
  • ASE T4 (Brakes) certification
  • ASE T5 (Suspension) certification
  • ASE T6 (Electrical and Electronic Systems)
  • ASE T7 (HVAC) certification
  • ASE 608/609 certification*
Skills & Abilities:
  • Understand the implications of new information for both current and future problem-solving and decision-making.
  • Ability to lift, bend, climb, stand, and walk for long periods of time; ability to perform moderately heavy laboring work
  • Ability to exert oneself physically over long periods of time without tiring, which may include performing repetitive tasks.
  • Communicates information (for example, facts, ideas, or messages) in a succinct and organized manner. Engages in effective two-way communication with individuals and groups.
  • Ability to determine the type of tools and equipment needed.
  • Ability to accurately judge which of several objects is closer or farther away from the observer, or the distance between an object and the observer.
  • Use logic and reasoning to identify the strengths and weaknesses of alternative solutions, conclusions, or approaches to problems.
Why Cox Fleet?
  • Weekly pay – get paid every Friday for added convenience and financial flexibility
  • Safe driving & tech efficiency bonuses
  • Safety boots & safety glasses reimbursement
  • Extreme weather gear (cold & hot)
  • Uniforms provided with laundry service where available
  • Take the service truck home daily (stop paying for gas!)
  • Tablet & company cellphone provided
  • Technical training provided to advance your career
  • Dedicated career path – Over 50% of our front-line managers are promoted from within
Benefits:
  • Health, dental, vision insurance starts DAY ONE of employment.
  • 401(k) matching starts after 90 days, 100%-match up to 6% contribution and an additional 2% discretionary contribution by the company.
  • Accrue up to 200 hours (5-weeks) of Paid Time Off based on your tenure with the company.
  • Tuition Assistance/Reimbursement
  • Adoption/Surrogacy assistance
  • Pet Insurance
  • Multiple ERG, diversity groups, and company paid volunteer hours.
  • Employee discounts on new vehicle purchases, cellphone plans, ridesharing, home/rental insurance, wellness/fitness incentives and much more.
Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the Diesel Mechanic in Downers Grove, IL vacancy
  •  ...Atlas Bobcat, part of the Atlas Companies, is currently hiring full-time Diesel Technicians to join our team. We are looking for individuals who enjoy working with their hands, solving mechanical problems, and building a long-term career. Whether you have experience... 
    Suggested
    Hourly pay
    Full time
    Temporary work
    Currently hiring
    Monday to Friday

    Atlas Toyota Material Handling

    Darien, IL
    4 days ago
  •  ...First Student is now hiring a Diesel Technician for our shop serving Westmont! Hours/Schedule: Monday-Friday, Full-time day shift...  ...safe and on time every day-because behind every bus is a skilled mechanic who ensures reliability, safety, and peace of mind for families... 
    Suggested
    Hourly pay
    Price work
    Full time
    Local area
    Immediate start
    Monday to Friday
    Day shift

    First Student

    Westmont, IL
    4 days ago
  • $28 - $40 per hour

    Waste Management is seeking Diesel Mechanics to inspect, maintain, and repair diesel-powered garbage trucks and heavy equipment used for waste collection operations. Diesel Mechanics are responsible for diagnosing mechanical issues, performing preventative maintenance,... 
    Suggested
    Hourly pay
    Full time
    Relocation package
    Shift work
    Night shift
    Afternoon shift

    Waste Management

    Westmont, IL
    17 hours ago
  • $35 per hour

     ...Basement Systems, a trusted family-owned company serving Chicagoland homeowners for over 45 years, is looking for an experienced Diesel Mechanic to join our growing team. If you have experience maintaining and repairing diesel trucks, fleet vehicles, trailers,... 
    Suggested
    Hourly pay
    Full time

    Perma-Seal Basement Systems

    Burr Ridge, IL
    4 days ago
  •  ...Job Description Job Description Position Summary     The Diesel Mechanic is responsible for performing periodic preventive maintenance, diagnostics, and repairs on all company-owned equipment used in a precast concrete manufacturing operation. This includes heavy... 
    Suggested
    Hourly pay

    ACS Management Group LLC

    West Chicago, IL
    20 days ago
  • $25 - $35 per hour

     ...Entry Level Semi-Diesel Mechanic Location: 1000 N Villa Ave, Villa Park, IL 60181. Company: Quality Parts and Repair (Division of DSL Express). Job Type: Full-time (Part-time will be considered). Salary: $25-$35 per hour (depending on experience and specialties... 
    Hourly pay
    Full time
    Part time
    Traineeship

    DSL Express

    Villa Park, IL
    2 days ago
  • $35 - $40 per hour

     ...Senior Semi-Diesel Mechanic II+ Quality Parts and Repair is seeking skilled and experienced semi-diesel mechanics to join our team. The ideal candidate will have expertise in diagnostics & electrical, engine work, and the replacement of engine components, clutch, transmission... 
    Hourly pay

    DSL Express

    Villa Park, IL
    2 days ago
  • $25 - $50 per hour

    A vehicle repair service in Villa Park is looking for skilled semi-diesel mechanics of all experience levels. Ideal candidates will handle diagnostics, engine work, and component replacements. The pay ranges from $25 to $50 per hour based on expertise and experience. The... 
    Hourly pay

    MBOzaak

    Villa Park, IL
    2 days ago
  • $25 - $35 per hour

    A leading auto repair service in Villa Park is seeking an Entry Level Semi-Diesel Mechanic. The role involves performing troubleshooting, maintenance, and component replacements under supervision. Ideal candidates should possess strong diagnostic skills and the ability... 
    Hourly pay
    Full time

    MBOzaak

    Villa Park, IL
    2 days ago
  • $25 - $50 per hour

    Job Title Semi-Diesel Mechanic, Level 1, 2 and 3 Location 1000 N Villa Ave, Villa Park, IL 60181 Company Quality Parts and Repair (Division of DSL Express) Job Type Full-time (Part-time will be considered) Salary $25-$50 per hour (depending on experience and specialties... 
    Hourly pay
    Full time
    Part time
    Traineeship

    MBOzaak

    Villa Park, IL
    2 days ago
  •  .... We are committed to our core values and being the preferred contractor by choice. We are currently looking for a heavy truck diesel mechanic to join our growing team. Duties include but not limited to: Inspect and diagnose mechanical, electrical, and hydraulic issues... 
    For contractors

    Winninger Excavating, Inc.

    Naperville, IL
    5 days ago
  • $29.42 - $44.13 per hour

    Fleet Services by Cox Automotive - Mobile Diesel Technician Level II Fleet Services, a Cox Automotive company headquartered in Indianapolis, is a leading provider of on‑site mobile maintenance and repair services for light, medium, and heavy‑duty trucks and trailers. The... 
    Hourly pay

    Cox Automotive Inc.

    Downers Grove, IL
    4 days ago
  •  ..., a 100+ year industry leader, is looking for a talented Fleet Mechanic to join our team in Addison, IL. If you’re skilled, motivated,...  ...candidate will have extensive experience in diagnosing and repairing diesel engines, cranes and hydraulic equipment and related systems.... 
    Weekly pay
    Full time

    Doyle Signs

    Addison, IL
    9 days ago
  • $80k

    A leading rail service provider is looking for a Diesel Mechanic at their Bedford Park, IL location. The ideal candidate has at least 2 years of diesel or heavy equipment experience and will be responsible for maintaining and repairing heavy forklifts and terminal vehicles... 

    Rail Management Services

    Bedford Park, IL
    4 days ago
  • $80k

    Now Hiring - Rail Terminal Diesel Mechanic. Location: CSX Bedford Park, IL. Take your skills to a place where they truly matter. At Pacific Rail Services (PRS), we keep CSX Bedford Park—one of the busiest rail terminals in the region—moving every single day. We need a... 
    Temporary work
    Local area
    Immediate start
    Shift work

    Rail Management Services

    Bedford Park, IL
    5 days ago
  •  ...powered tractors. Diagnoses failures and repairs the vehicle's mechanical, electric, and systems. Uses hydraulic jacks to gain access...  ...of the position. Preferred Qualifications ~2 years of diesel mechanic experience. ~ Proficiency in diagnostic software.... 
    Hourly pay
    Local area

    Saia

    Willowbrook, IL
    3 days ago
  • $31 - $37 per hour

     ...Reyes Fleet Management is seeking a Fleet Diesel Mechanic A to help with repairs and maintenance on trailer/tractor equipment at our facility shop in McCook, IL. Shift: Full-Time l 3rd Shift -Wednesday-Saturday 10:00PM-8:30AM OFF Sunday-Tuesday! Pay: Starts at $31... 
    Hourly pay
    Full time
    Local area
    Shift work
    Night shift

    Reyes Beverage Group

    La Grange, IL
    2 days ago
  •  ...Groot is looking for a safety conscious Diesel Mechanic to join the team at our transfer station in McCook, IL. Our Diesel Mechanic will perform repairs and preventative maintenance services and repairs on our trucks and equipment.  Duties & Responsibilities... 
    Work experience placement

    Waste Connections

    La Grange, IL
    11 hours ago
  •  ...Technician Skilled technician position for professionals with proven diesel repair abilities. Handle moderate-complexity repairs and diagnostics independently, contributing to a team that has supported the greater DuPage area for over ten years. Location: Carol... 

    Big Rig Fixer Corp

    Carol Stream, IL
    2 days ago
  • $31 - $37 per hour

     ...Job Description Job Description Reyes Fleet Management is seeking a Fleet Diesel Mechanic A to help with repairs and maintenance on trailer/tractor equipment at our facility shop in McCook, IL. Shift: Full-Time l 3rd Shift -Wednesday-Saturday 10:00PM-8:... 
    Hourly pay
    Full time
    Local area
    Shift work
    Night shift

    VetJobs and Military Spouse Jobs

    La Grange, IL
    3 days ago
  • $35 - $42 per hour

     ...We're hiring for a Heavy Diesel Technician in Houston, TX! Transdev Fleet Services is seeking an experienced Diesel Technician in...  ...certifications required; ASE certification program provided. ~ Mechanic's Tool Set ~ Subject to a DOT drug testing and physical if applicable... 
    Full time
    Contract work
    Temporary work
    Local area
    Flexible hours
    Shift work

    Transdev

    Lombard, IL
    17 hours ago
  • $38.44 per hour

     ...Tractor Diesel Mechanic/Technician Starting Pay $38.44/hour Union Shop Local 701 Excellent Union health benefits (BCBS Free for employee and family!) Transervice Logistics awarded Winner of 2025 Best Places to Work Transervice NamedTop Cold Storage Provider Award... 
    Local area

    Transervice Logistics Inc.

    Melrose Park, IL
    4 days ago
  •  ...Location: Carol Stream, IL (DuPage County, off North Ave) About The Role Junior technician role for those with foundational diesel repair knowledge. Perform routine maintenance and basic repairs independently while continuing to grow your skills in a supportive... 
    Apprenticeship

    Big Rig Fixer Corp

    Carol Stream, IL
    2 days ago
  • $60k - $78k

     ...Job Title: Diesel Truck Mechanic Job Description This role focuses on performing preventative maintenance and complex mechanical, hydraulic, and electrical repairs on medium-duty trucks used in an aviation ground support environment. You will diagnose and repair... 
    Hourly pay
    Weekly pay
    Permanent employment
    Temporary work

    Aerotek

    Franklin Park, IL
    3 days ago
  • $20 per hour

     ...commercial vehicle dealerships across the US. Whether you're a recent graduate eager to kickstart your career or an experienced & certified Diesel Technician seeking a new path, we are looking to welcome you to our team! With more than 200 locations and nearly 8,000... 
    Shift work

    Rush Enterprises

    Willowbrook, IL
    3 days ago
  • First Student is seeking a Diesel Technician to service and repair school buses in our Westmont shop. You will maintain safety and reliability while working a Monday-Friday day shift with year-round hours. You will diagnose, repair, and service brakes, engines, suspensions... 
    Monday to Friday
    Day shift

    First Student

    Westmont, IL
    4 days ago
  • $19 - $33 per hour

     ...About Us: At JX, we are more than just a provider in the diesel industry; we are a team united by core values that define our commitment...  ...repair or heavy-duty truck maintenance preferred. Basic mechanical aptitude and willingness to learn. Valid driver's license... 
    Full time
    Temporary work
    Monday to Friday
    Flexible hours
    Shift work
    Night shift
    Weekend work

    JX Truck Center

    Bolingbrook, IL
    4 days ago
  • $27.66 - $36.85 per hour

     ...: Perform preventative maintenance and tractor repairs on diesel engines, transmission, fuel systems, electrical systems and air...  ...must be at least 18 years old At least 1-2 years of hands-on mechanic experience servicing semi-trucks or military equivalent AC... 

    J.B. Hunt

    Clarendon Hills, IL
    3 days ago
  • $22 per hour

    A Union Diesel Mechanic will work under the supervision of a Leadman or Journeyman Mechanic. The apprentice shall be put on work commonly known as Journeyman Mechanic's work so that at the end of the apprenticeship, the apprentice shall be a qualified Journeyman Mechanic... 
    Apprenticeship
    Local area

    Rush

    Lyons, IL
    4 days ago
  •  ...using fork lifts and dollies through attainment of proper certifications Diagnose and identify faulty electrical components and mechanical components  Work at the component level including spindles, bearing packs, ballscrews, lubrication systems, and proper... 
    Temporary work
    Day shift

    Dynomax

    Villa Park, IL
    2 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Diesel Mechanic. Be the first to apply!