Diagnostic Specialist - Heavy-Duty Trucks

CRC TRANSPORT LLC; Bear (DE); On-site; USD 55,000 - 83,000; Part time

Benefits offered by this job

1099 Contract

Job summary

CRC Transport LLC in Bear, Delaware, is seeking a Diagnostic Specialist to diagnose complex faults in heavy‑duty trucks, using advanced diagnostic tools to identify root causes and perform ECM programming.

You will support mechanics, maintain diagnostic records, and coordinate with the shop team to keep fleet downtime to a minimum while complying with DOT safety procedures.

Qualifications

• 1–2 years of hands-on heavy-duty truck diagnostics experience.
• Experience with PACCAR, Cummins, or Volvo diagnostic platforms and aftertreatment systems such as DPF, SCR, NOx.
• Knowledge of CAN J1939 networks, ABS systems, and Eaton transmissions.
• Ability to read wiring diagrams, interpret fault codes, perform software updates, and program ECMs or other modules.
• Experience with Fullbay or similar shop management software.
• Strong troubleshooting skills, attention to detail, reliability, and the ability to work independently and communicate effectively with the team.
• English language proficiency sufficient for reading technical documentation and communicating with the shop team.

Responsibilities

• Diagnose complex faults in heavy-duty trucks, including engine, transmission, electrical, ABS, and aftertreatment systems.
• Use advanced diagnostic software and tools to identify root causes, retrieve fault codes, and perform software updates and ECM/module programming.
• Perform pre- and post-repair diagnostics to verify repairs and ensure trucks are safe and roadworthy.
• Help reduce downtime and repair costs by identifying effective in-house solutions and avoiding unnecessary dealership visits.
• Support mechanics and electricians with technical guidance and troubleshooting.
• Maintain accurate repair records, diagnostic reports, and parts documentation in the shop management system.
• Coordinate with the shop team to prioritize repairs and communicate progress, delays, and technical issues.
• Follow all company safety procedures and applicable DOT requirements.

Skills

Heavy-duty truck diagnostics

Troubleshooting

Independent work

Communication

Reading technical docs

Tools

PACCAR diagnostic platforms

Cummins diagnostic platforms

Volvo diagnostic platforms

Fullbay

Job description

Benefits:

• Competitive salary
• Free uniforms
• Opportunity for advancement
• Training & development

CRC Transport LLC | Bear Terminal, Delaware

Are you experienced in heavy-duty truck diagnostics and enjoy solving complex technical problems? CRC Transport is looking for a skilled Diagnostic Specialist to help keep our fleet safe, reliable, and ready for the road.

What will you be doing?

• Diagnosing complex faults in heavy-duty trucks, including engine, transmission, electrical, ABS, and after treatment systems.
• Using advanced diagnostic software and tools to identify root causes, retrieve fault codes, and perform software updates and ECM/module programming.
• Performing pre- and post-repair diagnostics to verify repairs and ensure trucks are safe and roadworthy.
• Helping reduce downtime and repair costs by identifying effective in-house solutions and avoiding unnecessary dealership visits.
• Supporting mechanics and electricians with technical guidance and troubleshooting.
• Maintaining accurate repair records, diagnostic reports, and parts documentation in the shop management system.
• Coordinating with the shop team to prioritize repairs and communicate progress, delays, and technical issues.
• Following all company safety procedures and applicable DOT requirements.

What are we looking for?

• 1–2 years of hands‑on heavy‑dutfi truck diagnostics experience in a commercial shop or fleet maintenance environment.
• Experience with PACCAR, Cummins, or Volvo diagnostic platforms and aftertreatment systems such as DPF, SCR, and NOx.
• Knowledge of CAN J1939 networks, ABS systems, and Eaton transmissions.
• Ability to read wiring diagrams, interpret fault codes, perform software updates, and program ECMs or other modules.
• Experience with Fullbay or similar shop management software.
• Strong troubleshooting skills, attention to detail, reliability, and the ability to work independently and communicate effectively with the team.
• English language proficiency sufficient for reading technical documentation and communicating with the shop team.

Preferably:

• Experience with CAT engine electrical systems, automatic transmission installation and programming, OEM diagnostic tools such as INSITE, ServiceRanger, DAVIE, JPRO, or Jaltest is a plus.

Work schedule and conditions

• Location: Bear Terminal, Delaware
• Schedule: Monday–Friday, 8:00 AM–6:00 PM; Saturday, 8:00 AM–1:00 PM
• Employment Type: 1099 Independent Contractor – Contract Only
• Work environment: On‑site commercial truck maintenance shop, with occasional field assistance when critical fleet situations require it.
• Physical requirements: Ability to work around heavy vehicles, stand for extended periods, bend, and use diagnostic equipment. Required PPE must be worn.
• Overtime: May be required to complete critical repairs and maintain fleet readiness.