Diesel Technician (Medium & Heavy Duty)

Acts Fleet Maintenance; Knoxville (TN); On-site; USD 28,000 - 69,000; Full time

Benefits offered by this job

Paid OEM Training

Modern Operations

Career Growth Program

Job summary

ACTS Fleet in Knoxville, TN is seeking an experienced diesel technician for medium and heavy-duty trucks. The role covers in-shop and on-site field service, focusing on uptime, safety, and high-quality repairs.

The position offers weekly pay, a competitive hourly rate, and paid OEM training with Mitsubishi, Cummins, and NAPA. CDL is preferred but not required, with growth through our Technician Growth Program and comprehensive benefits.

Qualifications

• Proven hands-on experience with medium/heavy-duty diesel equipment.
• Advanced proficiency with diagnostic software and troubleshooting.
• Ability to work independently and follow structured shop processes.
• Valid driver's license; CDL preferred but not required.

Responsibilities

• Perform diagnostics and repair on diesel vehicle systems.
• Maintain uptime, safety, and quality of repairs.
• Work in shop and in mobile field service as required.
• Participate in preventative maintenance and DOT inspections.

Skills

Medium/Heavy-duty experience

Diagnostics

Independence

Driver's license

Job description

Diesel Technician (Medium & Heavy-Duty) - ACTS Fleet

If your output is higher than everyone else in your shop-your environment should reflect it.

At ACTS Fleet in Knoxville, TN , we built this role for experienced diesel technicians who know their craft, take pride in their work, and want a shop where performance, structure, and respect actually align.

Compensation & Schedule

• Pay Range: $20.00 - $50.00 per hour (Based on experience and output)


• Earnings Potential: Earn 20-30% above the local industry average


• Frequency: Weekly pay , paid every Friday


• Schedule: 3-day weekends every other week for real work-life balance

Why Technicians Choose ACTS Fleet

• Paid OEM Training: Continuous technical education including Mitsubishi, Cummins, and NAPA.


• Modern Operations: Clean facility, updated equipment, and well-supported mobile field service vehicles.


• Career Growth: Clear advancement paths through our proprietary Technician Growth Program©.


• Premium Benefits: Comprehensive health coverage, retirement match, and paid uniforms.

What Makes This Different

High-performing technicians shouldn’t be held back by a chaotic environment. At ACTS Fleet, everything is built on structured processes, consistent standards, direct communication with leadership, and total autonomy without micromanagement.

The Work (Shop & Mobile Field Service)

You'll work on medium and heavy-duty commercial trucks and fleet vehicles - both in-shop and independently in the field, with a focus on uptime, safety, and getting repairs done right the first time.

• Advanced Diagnostics: Reading fault codes and analyzing data on late-model trucks using OEM and aftermarket scan tools.


• System Repairs: Diesel engines, brake systems, suspension, steering, drivelines, and transmissions.


• Electrical & Emissions: Troubleshooting complex electrical systems and emissions components.


• Preventative Maintenance: Conducting rigorous DOT inspections, fluid changes, and brake checks.


• Field Ownership: Representing ACTS Fleet professionally while diagnosing and repairing equipment directly on-site.

What You Bring

• Proven Experience: Strong hands-on experience as a medium/heavy-duty diesel technician.


• Diagnostic Skills: Advanced proficiency with diagnostic software and mechanical troubleshooting.


• Independence: Capability to handle complex issues alone and follow structured shop processes.


• Licensing: Valid driver's license required; CDL preferred , but not required.

Full Benefits Package

• 401(k) with company matching


• Health, Dental, and Vision insurance


• Health Savings Account (HSA)


• Life insurance


• Paid Time Off (PTO)


• Paid uniforms and continuous technical training

Bottom Line: Stronger technicians should be doing higher-level work— in an environment that recognizes it. If you know diesel, we want to talk.

Work Location: In-person (Shop in Knoxville, TN) and on the road (Mobile Field Service).