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

Diesel Mechanic

HOLLIDAY ROCK

Description

The Diesel Mechanic is responsible for performing journeyman-level mechanical work involving the inspection, maintenance, repair, and overhaul of diesel and gasoline-powered vehicles and equipment. This includes but is not limited to on-highway trucks, ready-mix vehicles, and various construction-related machinery. The role ensures that fleet operations remain in compliance with performance, safety, and reliability standards.

Essential Responsibilities of the Position:
• Complete tune-up, repair, and overhaul of diesel engines, including removal and replacement.
• Complete tune-up, repair, and overhaul of gasoline, including removal and replacement.
• Ability to use OEM software to diagnose and repair engines and transmissions.
• Service and adjustment of transmissions.
• Overhaul, maintenance, and adjustments of clutches, drive line components, and differentials.
• Overhaul and maintenance of heavy and light-duty suspension systems, including heavy leaf springs.
• Overhaul, maintenance, and adjustments of power and manual steering systems and components.
• Repair and maintenance of fuel systems and related components, both diesel and gas.
• Repair and maintenance of emission control systems.
• Check, test, and repair all components and accessories of electrical systems, 6, 12, and 24 volts.
• Repair and maintain cooling and heating systems.
• Repair and maintain air conditioning systems.
• Repair and maintenance of brake systems and related components, including mechanical brakes, electric brakes, hydraulic brakes, and air brake systems.
• Repair and maintenance of exhaust systems.
• Overhaul, maintenance, and testing of hydraulic systems, including pumps, rams, control valves, lines, and hoses.
• Lubrication, greasing, and oil changes of cars, trucks, and heavy equipment according to specifications.
• Setup, maintenance, and operation of vehicle washing equipment and steam cleaner.
• Make visual inspections of equipment and report any needed repairs to the Supervisor.
• Make service calls for emergency repairs, heavy-duty towing, and equipment retrieval.
• Submit required work orders for work performed and time spent on the job.
• Charges parts, supplies, oils, and grease to work orders.
• Perform related duties as assigned by the supervisor.
• Perform welding on steel and aluminum using Gas, Arc, and Mig welding techniques.

Skills and Knowledge:
• Skilled in analyzing, diagnosing, and correcting mechanical, hydraulic, and electrical
failures and defects.
• Skilled in using specialized tools and machines standard to the trade.
• Ability to plan and lay out repair work. Read, understand, and carry out repair
instructions from repair manuals. Follow oral and written instructions.
• Ability to maintain effective working relationships with fellow employees and the general
public.
• Promote a safe work environment by following all company rules and regulations.
• Comply with the company attendance policy.
• Keeps the work area clean and free of clutter.
• Ability to engage in strenuous physical activity, including, but not limited to, stooping,
standing, bending, climbing, etc. Ability to lift 50 lbs.

Requirements:
• High school diploma or equivalent preferred.
• Minimum of 2-4 years of experience in heavy-duty diesel equipment maintenance and
repair.
• Valid Class C driver's license: Class A or B license preferred.
• Ability to lift up to 50 lbs. and perform physical tasks including climbing, bending, and
standing for extended periods.
• Must be able to work in varying environmental conditions, including exposure to dust,
noise, and outdoor weather.

Physical Demands:
The physical demands described here represent those that must be met by an employee to
perform the essential functions of this job successfully. Reasonable accommodation may be
provided to enable individuals with disabilities to perform the essential job functions:
• Frequent lifting, carrying, pushing, and pulling of tools and equipment.
• Extended periods of standing, kneeling, and working in awkward positions.
• Exposure to oils, greases, fumes, and mechanical hazards.
• Work may be performed indoors in a shop environment or outdoors, depending on
operational needs.

Benefits:
• Medical Insurance, Dental HMO/PPO, Vision, Basic and Voluntary Life, and Voluntary Accident.
• Employee Assistance Program (EAP)
• 401 (k) Retirement Plan- Company match
• Paid Sick time.
• Paid Holidays
• Paid Vacations
• Direct Deposit
• Paid weekly.
• Referral Bonus

This job description does not imply that the listed duties are the only responsibilities of an employee in this position. Employees may be asked to perform additional tasks as needed to ensure adequate coverage of the workload. Furthermore, employees must follow any job-related instructions and complete any other duties assigned by their supervisor. This job description does not constitute an employment agreement between the employer and the employee and may be changed by the employer as organizational needs and job requirements of the job change.
Vacancy posted 3 days ago
Similar jobs that could be interesting for youBased on the Diesel Mechanic in Upland, CA vacancy
  •  ...Job Description Job Description About the Role: Road One Mobile Inc is looking for an Experienced Diesel Mechanic to join our team in Ontario, CA! This is a great opportunity to put your skills to work in a fast-paced, hands-on environment where your expertise keeps... 
    Suggested

    ROAD ONE MOBILE INC

    Ontario, CA
    3 days ago
  •  ...Job Description Job Description We are seeking experienced Diesel Mechanics with hands-on experience servicing fuel tanker trucks and heavy-duty commercial fleet equipment. The ideal candidate will possess strong diagnostic and repair skills, with proven experience... 
    Suggested
    Shift work
    Day shift

    Elite Fuels Transportation Inc.

    Upland, CA
    17 days ago
  • $20 - $21 per hour

     ...Diesel TechnicianWe are now looking for a Diesel Technician to join our team! As a Diesel Mechanic, you will provide accurate, efficient service to customers by troubleshooting, diagnosing, and repairing heavy duty trucks and trailers in a reasonable and responsible manner... 
    Suggested
    Flexible hours
    Night shift

    TravelCenters of America

    Ontario, CA
    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

    Upland, CA
    2 days ago
  • $20 - $21 per hour

     ...Diesel TechnicianWe are now looking for a Diesel Technician to join our team! As a Diesel Mechanic, you will provide accurate, efficient service to customers by troubleshooting, diagnosing, and repairing heavy duty trucks and trailers in a reasonable and responsible manner... 
    Suggested
    Apprenticeship
    Flexible hours
    Night shift

    TravelCenters of America

    Ontario, CA
    4 days ago
  • $61.67k - $90.45k

     ...LSI Diesel Mechanic Linde Services Inc. is seeking a Diesel Mechanic for locations in Rancho Cucamonga, CA, and Griffith, IN, United States. This position requires performing preventive and corrective maintenance on mobile nitrogen pumpers and related cryogenic equipment... 
    Work at office

    Linde Plc

    Rancho Cucamonga, CA
    4 days ago
  • $38 - $42 per hour

    Clean Harbors in Breslau, ON location is currently looking for a Heavy Duty Mechanic to join our team. The ideal candidate is responsible for maintaining and repairing heavy diesel equipment at our facility/shop. Wage range for this permanent full-time position:... 
    Permanent employment
    Full time
    Apprenticeship
    Casual work
    Local area
    Afternoon shift

    Clean Harbors

    Ontario, CA
    8 days ago
  • $45.06 per hour

    Clean Harbors Corunna, Ontario is looking for a Licensed Heavy Duty Equipment Technician (421A) (Off Road Mechanic ) to join their safety conscious team! This position will be responsible for the repairs and preventative maintenance of all company owned fleet (trucks... 
    Full time
    Monday to Friday

    Clean Harbors

    Ontario, CA
    8 days ago
  • $38 - $45 per hour

     ...currently looking for a Licensed or 3rd Year Apprentice Heavy Duty Mechanic (Truck and Coach Technician 310T) to join our team. This...  ...will be responsible for maintaining and repairing all heavy diesel equipment within the facility. Why work for Clean Harbors?... 
    Full time
    Apprenticeship
    Casual work
    Monday to Friday

    Clean Harbors

    Ontario, CA
    3 days ago
  • $17 - $28.8 per hour

     ...We are now looking for a Diesel Technician to join our team! As a Diesel Mechanic, you will provide accurate, efficient service to customers by troubleshooting, diagnosing, and repairing heavy duty trucks and trailers in a reasonable and responsible manner within company... 
    Hourly pay
    Apprenticeship
    Local area
    Flexible hours
    Night shift

    TravelCenters of America

    Ontario, CA
    4 days ago
  • $35 - $45 per hour

     ...Sarnia, Ontario is looking for a Licensed Mobile Heavy Duty Mechanic to join their safety conscious team! The ideal candidate will...  ...Date: 2026-08-28 Job Schedule: Full time Job Function: Diesel, Truck & Heavy Equipment Mechanics Locations: 4090 Telfer Road... 
    Permanent employment
    Full time

    Clean Harbors

    Ontario, CA
    8 days ago
  • Certerra is seeking a Mechanic to inspect, diagnose, repair, and maintain a variety of vehicles and equipment. The ideal candidate will have strong knowledge in mechanical, electrical, and hydraulic systems and should be prepared to work in a physically demanding environment... 

    First Glass Promotion

    Rancho Cucamonga, CA
    2 days ago
  •  ...Diesel Fleet MechanicPosition at Swift Transportation Diesel Fleet Mechanic Location: Jurupa Valley, CA 91752 Pay: $24 - $32 Shift: Sunday- Thursday 10:30AM-7PM RequirementsValid Drivers LicenseComprehensive Background CheckPre-employment Hair Test drug screeningWhat we... 
    Local area
    Immediate start
    Shift work

    Swift Transportation

    Eastvale, CA
    4 days ago
  • $36.64 - $46.05 per hour

     ...qualifications) SUMMARY We are seeking a highly skilled Heavy Equipment Mechanic with hands‑on experience in CNG and/or electric‑powered bus...  ...maintenance, and firefighting equipment, including gasoline, diesel vehicles such as tractors, sweepers, skip loaders, fire... 
    Hourly pay
    Full time
    Contract work
    For contractors
    Apprenticeship
    Flexible hours
    Night shift

    Ontario International Airport

    Ontario, CA
    15 hours ago
  •  ...guest vehicles with a focus on brakes, engine, suspension, electrical and HVAC work. You will be trained to perform a wide range of mechanical services and contribute to a superior guest experience. We offer extensive benefits, tools provision, and career advancement... 

    Team Car Care West, LLC (US)

    Upland, CA
    4 days ago
  • $70k

     ...on experience Position Summary Seeking a skilled and motivated Diesel Technician to join our service team in Ontario, California....  ...efficiently, and with minimal downtime. The ideal candidate is mechanically inclined, customer-focused, and experienced in troubleshooting... 
    Hourly pay
    Full time

    Ultimate Staffing

    Ontario, CA
    1 day ago
  • $38 - $42 per hour

     ...Breslau, Ontario is looking for a Licensed Heavy Duty Mobile Mechanic (Truck and Coach Technician) to join their safety conscious team...  ...Date: 2026-08-28 Job Schedule: Full time Job Function: Diesel, Truck & Heavy Equipment Mechanics Locations: 65 Woolwich... 
    Full time

    Clean Harbors

    Ontario, CA
    7 days ago
  •  ...Skills Needed ~ Know how to use heavy-duty truck software. ~ Understand diesel engines and wiring. ~ Read technical manuals and wiring diagrams. ~ Solve hard mechanical problems fast. ~ Pay close attention to detail. Requirements ~ High school... 

    La Carcacha Electric Truck Repair I

    Rancho Cucamonga, CA
    25 days ago
  • Job Description Job Description Benefits/Perks Careers Advancement Opportunities  Flexible Scheduling Competitive Compensation   Job Summary We are looking for an Automotive Technician to join our successful dealership service center.  As an Automotive...
    Flexible hours

    ROCKLIN SMOG AND AUTO REPAIR

    Upland, CA
    2 days ago
  •  ...internal rewards programUniforms paid for and launderedGEAR UP FOR YOUR ROLE: As the Automotive Technician, you're the go-to expert for mechanical repairs in our service center, trusted with professionally servicing our guests' vehicles to ensure top-quality work and an... 
    Apprenticeship

    Jiffy Lube

    Upland, CA
    4 days ago
  • $27 - $40 per hour

    Senior Automotive TechnicianPowered by the Sun Auto Network, Ramona Tire & Service Centers delivers reliable tire and full-service automotive repair as part of a trusted network of 500+ locations nationwide. From oil changes and brake repairs to new tires and engine diagnostics...
    Hourly pay
    Price work
    Local area
    Immediate start
    Flexible hours

    Sun Auto Tire & Service

    Ontario, CA
    4 days ago
  • $27 - $40 per hour

    Automotive TechnicianRamona Tire & Service Centers delivers reliable tire and full-service automotive repair as part of a trusted network of 500+ locations nationwide. From oil changes and brake repairs to new tires and engine diagnostics, you can count on thorough service...
    Hourly pay
    Price work
    Local area
    Immediate start
    Flexible hours

    Ramona Tire & Service Centers

    Rancho Cucamonga, CA
    2 days ago
  • $16.5 - $27.02 per hour

     ...Automotive MechanicThe Automotive Mechanic must professionally inspect, diagnose and repair tire and automotive services, while delivering an excellent customer experience. They are responsible for explaining technical diagnoses and needed repairs to co-workers and customers... 
    Hourly pay
    Price work
    Part time
    Night shift
    Weekend work

    Pep Boys

    Rancho Cucamonga, CA
    4 days ago
  • $31 - $45 per hour

     ...Automotive Technician/Mechanic$31-$45 effective rate (Base Pay + Commission + Overtime + Paid Benefits)What Can You Expect From Being a Technician?Work as a team to perform front-end mechanical repairs, but not limited to alignments, brakes, steering/suspension, fluid... 
    Hourly pay

    Big Brand Tire

    Rancho Cucamonga, CA
    4 days ago
  •  ...experience and technical expertise to diagnose drivability and electrical systems. A successful Technician will use leadership and mentoring skills to drive a team to increase customer care and sa Automotive Technician, Technician, Automotive, Technical, Mechanical... 

    Auto Plus Pep Boys

    Upland, CA
    4 days ago
  • $17.6 - $34.06 per hour

     ..., suspension and alignment, air conditioning and computer systems.Perform job duties of all lower job descriptions (Technician B, Mechanic, General Service Technician).Adequately explain technical diagnoses and needed repairs to non-mechanical individuals which may include... 
    Hourly pay
    Price work
    Part time
    Night shift
    Weekend work

    Pep Boys

    Upland, CA
    4 days ago
  • $27 - $40 per hour

    Overview: Powered by the Sun Auto Network, Ramona Tire & Service Centers delivers reliable tire and full-service automotive repair as part of a trusted network of 500+ locations nationwide. From oil changes and brake repairs to new tires and engine diagnostics, you can...
    Bi-weekly pay
    Hourly pay
    Price work
    Local area
    Immediate start
    Flexible hours

    Ramona Tire And Service Centers

    Ontario, CA
    3 days ago
  • A leading construction company in California is seeking a skilled Diesel Mechanic to maintain and repair a variety of construction equipment and vehicles. The ideal candidate will have a minimum of 5 years of experience, demonstrating expertise in diesel engine mechanics... 
    Full time

    Kasa Construction Inc.

    Chino, CA
    2 days ago
  • Road One Mobile Inc in Ontario, CA is seeking an experienced Diesel Mechanic to join our hands-on team keeping a fleet of heavy-duty vehicles on the road. You will diagnose, repair, and maintain diesel-powered trucks and trailers, perform preventive maintenance, and ensure... 

    ROAD ONE MOBILE INC

    Ontario, CA
    15 hours ago
  • $30 - $42 per hour

    We are willing to train the right candidate! Description: Diesel Technician / Fleet Mechanic $30 to $42 per hour (depending on experience) Monday-Friday 8:00am-4:30 pm Clarke Vehicare has current openings for Technicians! Are you a Truck Mechanic looking for a good new... 
    Hourly pay
    Weekly pay
    Monday to Friday

    Clarke Power Services, Inc.

    Pomona, CA
    2 days ago

Do you want to receive more vacancies?

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