Trade School Diesel Mechanic

Crawford Thomas LLC; West Mifflin (Allegheny County); On-site; USD 44,000 - 47,000; Full time

Job summary

Crawford Thomas Recruiting is seeking a Diesel Fleet Mechanic in West Mifflin, PA. The role involves diagnosing and repairing heavy‑duty Class 6–8 trucks, using laptop diagnostic tools, and maintaining emissions systems to keep the fleet safe and road‑worthy.

Ideal candidates have 2+ years of experience, strong troubleshooting skills, and a commitment to safety and quality repairs. This position offers competitive hourly pay and benefits.

Qualifications

• 2+ years of professional diesel mechanic experience on Class 6–8 commercial trucks.
• Hands‑on experience with laptop-based diagnostic tools and heavy‑duty engine systems.
• Ability to perform forced DPF regenerations, interpret fault codes, and analyze live engine data.
• Strong knowledge of diesel emissions systems, mechanical repairs, and preventative maintenance.
• Familiarity with DOT inspections and commercial vehicle safety requirements.
• ASE Diesel Certifications (T2–T8) are a plus.
• Valid driver’s license; CDL Class A or B preferred.
• Basic set of mechanic hand tools and any required diagnostic equipment.

Responsibilities

• Advanced Diagnostics: Use diagnostic software to identify fault codes, monitor live data, perform forced regens, and configure engine modules.
• Diesel Emissions Systems: Diagnose, maintain, and repair DPF, SCR, DEF dosing, and EGR systems.

Skills

Troubleshooting

Hands-on work

Attention to detail

Safety compliance

Team collaboration

Education

ASE Diesel Certifications (T2–T8)

Tools

Cummins Insite

Detroit DDDL

CAT ET

Volvo PTT

Job description

Diesel Fleet Mechanic

Salary: $32/hr - $34/hr & Excellent Benefits

Location: West Mifflin, PA

Experience: 2+ Years | Class 6–8 Diesel Trucks

Keep the Fleet Moving. Power the Next Generation of Truck Drivers.

Put your diesel mechanic skills to work in a unique environment supporting a CDL truck-driving trade school. We’re looking for an experienced Diesel Fleet Mechanic who can diagnose complex issues, perform hands‑on repairs, and keep heavy‑duty trucks safe, reliable, and ready for the road.

If you enjoy troubleshooting, working with advanced diagnostic technology, and keeping commercial vehicles operating at their best, this is an opportunity to make a direct impact on fleet performance and driver training.

What You’ll Do

• Advanced Diagnostics: Use diagnostic software such as Cummins Insite, Detroit DDDL, CAT ET, and Volvo PTT to identify fault codes, monitor live engine data, perform forced regens, and configure engine control modules.
• Diesel Emissions Systems: Diagnose, maintain, and repair DPF, SCR, DEF dosing, and EGR systems to keep trucks operating efficiently and meeting emissions requirements.
• Heavy‑Duty Repairs: Service and repair diesel engines, transmissions, air and hydraulic brakes, suspensions, steering systems, and electrical components.
• Preventative Maintenance: Perform scheduled maintenance, oil and filter changes, fluid services, and DOT safety inspections.
• Troubleshooting: Identify root causes of mechanical, electrical, and hydraulic problems to reduce downtime and keep the fleet road‑ready.
• Fleet Reliability: Prioritize repairs and maintenance to ensure trucks are available, dependable, and safe for student driver training.
• Service Documentation: Maintain accurate service records, diagnostic findings, repair orders, and parts usage in the shop management system.

What We’re Looking For

• 2+ years of professional diesel mechanic experience working on Class 6–8 commercial trucks
• Hands‑on experience with laptop-based diagnostic tools and heavy‑duty engine systems
• Ability to perform forced DPF regenerations, interpret fault codes, and analyze live engine data
• Strong knowledge of diesel emissions systems, mechanical repairs, and preventative maintenance
• Familiarity with DOT inspections and commercial vehicle safety requirements
• ASE Diesel Certifications (T2–T8) are a plus
• Valid driver’s license required; CDL Class A or B preferred
• Personal set of basic mechanic hand tools and any required specialty diagnostic equipment
• Strong troubleshooting skills, attention to detail, and commitment to safe, quality repairs

Physical Requirements

• Ability to lift approximately 50–75 lbs.
• Comfortable standing for extended periods and performing hands‑on mechanical work
• Ability to work safely in a heavy‑duty truck maintenance environment

Why This Opportunity?

• Work with heavy‑duty commercial trucks and advanced diesel diagnostic technology
• Play an important role in keeping a CDL training fleet safe and operational
• Apply your technical expertise to a mission that helps prepare future professional drivers
• Take ownership of maintenance, troubleshooting, and fleet reliability
• Join an environment where dependable equipment and quality workmanship make a real difference

Ready to Put Your Diesel Expertise to Work? If you’re a hands‑on diesel mechanic who takes pride in solving problems, minimizing downtime, and keeping heavy‑duty trucks road‑ready, this is an opportunity to put your skills to work in a setting that helps launch trucking careers.