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Entry Level Diesel Tech Jobs in California (NOW HIRING)

company1037

Diesel Tech Mechanic

Brawley, CA · On-site

$25/hr

Description Summary/Objective The Diesel/Tech Mechanic role encompasses a range of skill levels, from entry-level apprentices to seasoned master mechanics. Our technicians work on a variety of heavy ...

XPO

Diesel & Trailer Technicians

Santa Fe Springs, CA

$26.53 - $38.20/hr

... time in an entry-level Technician role * Able to perform safety inspections of equipment and ... technology and physical assets. At XPO, we look for employees who like a challenge and can ...

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Entry Level Diesel Tech information

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$14

$30

$45

How much do entry level diesel tech jobs pay per hour?

As of Jul 26, 2026, the average hourly pay for entry level diesel tech in California is $30.37, according to ZipRecruiter salary data. Most workers in this role earn between $25.14 and $35.10 per hour, depending on experience, location, and employer.

What is the difference between Entry Level Diesel Tech vs Diesel Service Technician?

AspectEntry Level Diesel TechDiesel Service Technician
CertificationsBasic diesel mechanic certifications, such as ASE Entry LevelAdvanced certifications, including ASE Master Diesel Technician
Work EnvironmentGarages, repair shops, dealershipsSimilar environments, often with more complex diagnostics
Job ResponsibilitiesBasic repairs, routine maintenance, inspectionsMore complex repairs, troubleshooting, system diagnostics

Entry Level Diesel Techs typically perform basic maintenance and repairs with foundational certifications, while Diesel Service Technicians handle more complex diagnostics and repairs, often requiring advanced certifications. Both roles are found in similar work environments within the automotive and trucking industries, but Diesel Service Technicians usually have more experience and specialized skills.

What are the key skills and qualifications needed to thrive as an Entry Level Diesel Tech, and why are they important?

To thrive as an Entry Level Diesel Tech, you need foundational knowledge of diesel engine mechanics, vehicle systems, and a high school diploma or technical certification in diesel technology. Familiarity with diagnostic tools, repair manuals, and shop management software is typically required. Strong problem-solving skills, attention to detail, and a willingness to learn help individuals excel in this role. These skills ensure accurate diagnostics, effective repairs, and safe, efficient service in a demanding automotive environment.

What is an Entry Level Diesel Tech?

An Entry Level Diesel Tech, or Entry Level Diesel Technician, is a professional who assists in the maintenance, repair, and inspection of diesel engines and vehicles under the supervision of senior technicians. They perform basic tasks like oil changes, filter replacements, and diagnostic checks while learning more advanced repair techniques on the job. This role is ideal for individuals who have recently completed a technical training program or have some hands-on experience with automotive or diesel engines. Entry Level Diesel Techs gain practical experience and develop skills necessary for more advanced positions in the diesel technology field.

What types of hands-on training and mentorship can an Entry Level Diesel Tech expect during their first year on the job?

As an Entry Level Diesel Tech, you can typically expect a combination of structured on-the-job training and mentorship from experienced technicians during your first year. You'll likely start with basic maintenance tasks, such as oil changes, filter replacements, and inspections, gradually taking on more complex repairs as you demonstrate proficiency. Most shops foster a collaborative environment where senior techs provide guidance, answer questions, and occasionally supervise your work to ensure safety and quality. This supportive structure is designed to help you build confidence, develop technical skills, and prepare for more advanced responsibilities as you progress in your career.
What are the most commonly searched types of Diesel Tech jobs in California? The most popular types of Diesel Tech jobs in California are:
What cities in California are hiring for Entry Level Diesel Tech jobs? Cities in California with the most Entry Level Diesel Tech job openings:
Entry Level Diesel Tech jobs near you
Infographic showing various Entry Level Diesel Tech job openings in California as of July 2026, with employment types broken down into 5% Locum Tenens, 85% Full Time, 8% Part Time, 1% Contract, and 1% Nights. Highlights an 100% Physical job distribution, with an average salary of $63,165 per year, or $30.4 per hour.

Diesel Tech Mechanic

company1037

Brawley, CA • On-site

$25/hr

Full-time

Posted 29 days ago

Job description

Description
Summary/Objective
The Diesel/Tech Mechanic role encompasses a range of skill levels, from entry-level apprentices to seasoned master mechanics. Our technicians work on a variety of heavy-duty trucks, trailers, and fleet equipment, performing preventative maintenance, diagnostics, and complex repairs.
Role Levels & Responsibilities
C-Level Tech (1-3 Years) - Apprentice / Lube & Tire Technician
Overview:
Entry-level mechanics who are learning the fundamentals of fleet and truck maintenance under close supervision.
Key Responsibilities:
  1. Perform preventative maintenance (A, B, C services) including oil changes, filter replacements, and chassis lubrication.
  2. Inspect, adjust, and replace air brakes, brake shoes, drums, slack adjusters, wheel seals, and bearings.
  3. Use OBD-II or heavy-duty scan tools to pull basic fault codes.
  4. Inspect tires, check tire pressure, and identify basic suspension issues (worn leaf springs, shocks, leaking airbags).
  5. Test and replace coolant, transmission fluid, and differential fluid.
  6. Follow strict shop safety protocols: proper lifting, jack-stand placement, and lockout/tagout procedures.
  7. Perform daily tasks including brake shoe and drum replacements, basic lighting/wiring repairs, tire changes, and mud flap replacements.
  8. Earn basic air brake certifications and Federal DOT inspection certifications.
  9. Develop attention to detail, performing work correctly the first time to meet dealership-level standards

B-Level Tech (4-7 Years) - Mid-Level / Journeyman Mechanic
Overview:
Mechanics at this stage work independently, troubleshooting, replacing components, and mastering electrical and emissions systems.
Key Responsibilities:
  • Perform advanced electrical troubleshooting using wiring schematics and multimeters.
  • Diagnose and repair emissions and aftertreatment systems (DPF, DEF, SCR, EGR).
  • Service HVAC systems: recover, vacuum, recharge AC, diagnose compressors and leaks.
  • Replace clutches, diagnose transmissions (manual & automated), and repair drivelines and differentials.
  • Troubleshoot air systems, replace air compressors, governors, and pneumatic valves.
  • Understand hydraulics: replace PTOs, hydraulic pumps, repack cylinders (if applicable).
  • Proficient in suspension, ABS diagnostics, and air systems.
  • Perform complex daily tasks: rebuild suspensions, replace airbags and landing gear assemblies, repair wiring harnesses, basic welding/fabrication.
  • Handle daytime roadside service or on-call hours independently.
  • Cross-train in trailer mechanics, OEM-specific systems, or transport refrigeration.
  • Optional specialization (B+): welding, fabrication, or other advanced skills.

A-Level Tech (8-14 Years) - Senior / Master Technician
Overview:
Experienced mechanics responsible for complex diagnostics, major rebuilds, and OEM-specific expertise.
Key Responsibilities:
  • Perform engine overhauls, including in-frame and out-of-frame rebuilds.
  • Use manufacturer-specific diagnostic software (Cummins INSITE, Detroit Diesel Diagnostic Link, CAT ET) for advanced troubleshooting.
  • Diagnose multiplexing/CAN bus communication failures and intermittent electrical issues.
  • Perform basic welding and fabrication to repair frames, brackets, or extract broken bolts.
  • Lead major repairs: trailer body collision repair, reefer unit overhauls (if certified).
  • Manage parts inventory, perform internal quality audits, and ensure zero comebacks.
  • Mentor and train junior mechanics, setting high standards for workmanship and safety.

Veteran Tech / Shop Foreman (15+ Years) - Master Fleet Technician
Overview:
Mechanics with extensive experience in modern and legacy systems, focusing on leadership, workflow optimization, and operational efficiency.
Key Responsibilities:
  • Train apprentices and guide journeymen through complex repairs.
  • Manage workflow, estimate repair times, and delegate tasks effectively.
  • Troubleshoot both legacy mechanical and modern computerized systems.
  • Administer warranty claims and ensure compliance with OEM standards.
  • Predictive maintenance to prevent costly breakdowns.
  • Perform quality checks on all shop work and complex diagnostics.
  • Lead by example, fostering a culture of ownership, pride, and excellence.
  • Transition into formal leadership roles (Shop Foreman, Lead Technician, Shift Supervisor).

Requirements
Qualifications (All Levels):
  • High school diploma or equivalent required; technical school training preferred.
  • Valid CDL (if performing on-road service) may be required.
  • Strong mechanical aptitude and desire to learn.
  • Ability to follow safety protocols and work in a fast-paced environment.
  • Commitment to teamwork and mentorship (for senior levels).

Apply