Diesel Mechanic - Fleet Diagnostics & Repairs

DeWitt Guam; Tamuning (GU); On-site; USD 45,000 - 65,000; Full time

Benefits offered by this job

FSA Medical and Dependent Accounts

401(k) Plan

Paid Time Off

Paid Holidays

Job summary

DeWitt Guam is seeking a skilled Diesel Mechanic to service, repair, and maintain our diverse fleet across heavy‑duty, medium‑duty, and light‑duty vehicles on Guam. The role focuses on diesel engines, transmissions, hydraulics, and electrical systems with attention to safety and accurate service records.

You will diagnose issues, perform engine, brake, drive train, and A/C repairs, maintain logs, and use OEM diagnostics.

Qualifications

• Experience with diesel engines and heavy‑duty equipment.
• Ability to read electrical schematics and diagnose complex issues.
• Proficiency with diagnostic software and OEM resources.
• Must be able to obtain DBIDS clearance.
• Comfortable performing preventive maintenance and inspections.

Responsibilities

• Repair and maintain engines, transmissions, differentials, turbochargers, and fuel systems.
• Service Class 8 trucks and various duty vehicles on fleet.
• Tune and maintain engines and equipment including hydraulics and pumps.
• Perform engine, brake, drive train, electrical, and A/C repairs.
• Record all work orders and maintain maintenance logs.
• Use diagnostic programs and OEM resources for troubleshooting.
• Troubleshoot breakdowns and ensure operational readiness.
• Adhere to OSHA, DOT, and EPA safety standards.

Skills

Diagnostic software

Electrical troubleshooting

Electrical schematics

DBIDS access

Heavy equipment operation

Safety compliance

Job description

DeWitt Guam is seeking a skilled Diesel Mechanic to service, repair, and maintain our diverse fleet across heavy‑duty, medium‑duty, and light‑duty vehicles on Guam. The role focuses on diesel engines, transmissions, hydraulics, and electrical systems with attention to safety and accurate service records.

You will diagnose issues, perform engine, brake, drive train, and A/C repairs, maintain logs, and use OEM diagnostics.