Gas & Diesel Truck Mechanic

ALLIANCE WORKFORCE MANAGEMENT INC; Oklahoma; On-site; USD 42,000 - 65,000; Full time

Job summary

Alliance Workforce Management is hiring Gas & Diesel Truck Mechanics to support a leading transportation and fleet maintenance operation in Owasso. You will diagnose, repair, and maintain medium- and heavy-duty trucks to ensure safety and reliability.

You will perform inspections, routine maintenance, and troubleshooting across electrical, hydraulic, and pneumatic systems. The role requires strong diagnostic skills, teamwork, and the ability to work independently in a shop environment.

Qualifications

• High school diploma or GED required; diesel tech training preferred.
• 2–5 years’ experience with gas or diesel trucks or fleet vehicles.
• Strong mechanical aptitude and diagnostic skills.
• Experience with electrical systems, hydraulics, pneumatics, and engine diagnostics.
• Ability to read repair manuals, schematics, and technical documents.
• Basic computer skills for logging repairs and using diagnostic software.
• Strong communication and teamwork abilities.
• Ability to work independently and manage multiple tasks.
• Valid driver’s license required; CDL is an asset.

Responsibilities

• Inspect, diagnose, and repair gas and diesel engines, transmissions, drivetrains, and related components.
• Perform routine maintenance: oil changes, filter replacements, brake service, and fluid checks.
• Troubleshoot electrical systems, wiring, sensors, and onboard diagnostics.
• Repair or replace hydraulic and pneumatic components as needed.
• Conduct DOT-compliant inspections and ensure safety compliance.
• Maintain accurate records of repairs, parts usage, and service logs.
• Operate diagnostic tools, scan equipment, and testing instruments.
• Perform welding, fabrication, or minor bodywork when required.
• Collaborate with supervisors and drivers to identify issues and prioritize repairs.
• Keep work areas clean, organized, and compliant with safety standards.
• Other duties as assigned.

Skills

Diesel technology

Diagnostic skills

Mechanical aptitude

Teamwork

Communication

Education

High school diploma or GED

Job description

Description

Alliance Workforce Management is hiring Gas & Diesel Truck Mechanics to support a leading transportation and fleet maintenance operation in Owasso. This role is responsible for diagnosing, repairing, and maintaining commercial trucks to ensure safe, reliable, and efficient performance.

Position Overview

The Gas & Diesel Truck Mechanic performs inspections, troubleshooting, and repairs on medium- and heavy-duty trucks powered by gasoline and diesel engines. This role ensures fleet readiness, minimizes downtime, and maintains compliance with safety and operational standards.

Responsibilities

• Inspect, diagnose, and repair gas and diesel engines, transmissions, drivetrains, and related components.
• Perform routine maintenance including oil changes, filter replacements, brake service, and fluid checks.
• Troubleshoot electrical systems, wiring, sensors, and onboard diagnostics.
• Repair or replace hydraulic and pneumatic components as needed.
• Conduct DOT-compliant inspections and ensure vehicles meet safety requirements.
• Maintain accurate records of repairs, parts usage, and service logs.
• Operate diagnostic tools, scan equipment, and mechanical testing instruments.
• Perform welding, fabrication, or minor bodywork when required.
• Collaborate with supervisors and drivers to identify mechanical issues and prioritize repairs.
• Keep work areas clean, organized, and compliant with safety standards.
• Other duties as assigned.

Qualifications

• High school diploma or GED required; technical training in diesel technology or automotive repair preferred.
• 2–5 years of experience working with gas or diesel trucks, heavy equipment, or fleet vehicles.
• Strong mechanical aptitude and diagnostic skills.
• Experience with electrical systems, hydraulics, pneumatics, and engine diagnostics.
• Ability to read and interpret repair manuals, schematics, and technical documents.
• Basic computer skills for logging repairs and using diagnostic software.
• Strong communication and teamwork abilities.
• Ability to work independently and manage multiple tasks.
• Valid driver’s license required; CDL is an asset.

Requirements

Work Environment

• Work performed in a shop environment with exposure to noise, fumes, and mechanical equipment.
• Frequent standing, bending, kneeling, and lifting heavy parts or tools.
• Ability to lift up to 70 lbs unassisted.
• Use of PPE including safety glasses, gloves, steel-toe boots, and hearing protection as required.

Physical Requirements

• Ability to perform physical tasks such as climbing, crawling under vehicles, and maneuvering heavy components.
• Adequate vision for detailed inspections and identifying electrical color codes.
• Ability to work in varying temperatures depending on shop conditions.

Open Roles

Multiple positions available with various shift options depending on operational needs.