Diesel Mechanic

C1 Truck Service, LLC; Joliet, Northern (IL, KY); Hybrid; USD 48,000 - 55,000; Full time

Benefits offered by this job

Paid Holidays

Retirement Plan

401k Plan

Job summary

C1 Truck Service in Joliet, IL is seeking a dedicated diesel mechanic to maintain and repair heavy-duty engines and related systems. You will diagnose issues, perform preventive maintenance, and communicate repair status with management to ensure DOT compliance and fleet readiness.

The role requires 3+ years in diesel mechanics, tools on hand, and a customer-focused approach. We offer full-time hours, a 45-hour week, and benefits including paid holidays, retirement plan, and 401k.

Qualifications

• Minimum 3 years verified diesel mechanic experience; 5+ years for advanced roles.
• Proficient with diagnostic tools and computers.
• Valid driver's license required; CDL advantageous.
• State/ASE certifications valued; own personal tools required.
• Cummins certifications are a bonus.
• Strong customer service orientation in varying conditions.

Responsibilities

• Diagnose and repair brakes, steering, electrical, cooling, transmissions, and drive trains.
• Perform scheduled maintenance such as oil changes and DOT inspections.
• Use diagnostic software to troubleshoot engine and system malfunctions.
• Repair radiators, alternators, turbochargers, sensors, starters, DPF, HVAC components.
• Contribute to bodywork tasks and fifth wheel/transmission work as needed.
• Test drive to verify repairs and respond to road calls for on-site service.

Skills

Diesel mechanics

Diagnostic tools

Customer service

Valid driver's license

CDL helpful

ASE certification

Tool ownership

Education

High school diploma

Technical certification

Related degree

Tools

Diagnostic software

Computers

Cummins tool set

Job description

Diesel Mechanic

Pay: $35 - $40 Per Hour

Job Type: Mechanical

Summary

We are seeking a dedicated, experienced diesel mechanic to join our repair team. In this role, you'll maintain and repair heavy-duty diesel engines and other vital systems. The ideal candidate will have a thorough knowledge of diesel mechanics and experience with advanced diagnostic tools. If you are a detail-oriented professional with strong problem-solving skills and a commitment to excellence in vehicle maintenance, we encourage you to apply!

Job Description:

Responsibilities

• Diagnose and repair various vehicle systems including brakes, steering, electrical, cooling, transmissions, and drive trains.
• Perform scheduled and preventive maintenance tasks, such as oil changes, D.O.T inspections, and fluid top-ups.
• Utilize diagnostic software to troubleshoot engine and system malfunctions.
• Handle repairs and replacements of components like radiators, alternators, turbochargers, sensors, starters, DPF systems, and HVAC systems.
• Undertake bodywork, including painting and interior maintenance such as seat and cabinet replacements.
• Manage fifth wheel repairs, rebuilds, and transmission work, including clutches, drive shafts, and axle shafts.
• Maintain clear communication with management regarding repair statuses, safety issues, and parts inventory.
• Ensure vehicles are maintained according to factory specifications and comply with all federal and state DOT regulations.
• Conduct test drives to verify the effectiveness of repairs and respond to road calls for on-site repairs as needed.

Qualifications

• High school diploma or equivalent; technical certification or degree in a related field preferred.
• Minimum of 3 years of verifiable experience in diesel mechanic roles; 5+ years preferred for advanced positions.
• Proficiency with diagnostic tools and computers.
• Specific certifications (Cummins etc) are a bonus.
• Strong customer service orientation and ability to work in various physical conditions.
• Valid driver's license is mandatory; possession of a CDL license is advantageous.
• State/ASE certification is highly valued.
• Must own personal tools suited for diesel mechanic work.

Shift Schedule

• Type of employment (full-time, part-time, etc.)
• Expected hours
• Days/hours the employee is expected to work (weekends, night shifts, etc.)
• Overtime requirements

Shift Schedule:

• Full Time
• 45 hours per week

Benefits:

• Paid Holidays
• Retirement Plan
• 401k Plan

At C1 Truck Service, we are dedicated to fostering diversity and inclusivity. As an equal opportunity employer, we actively support everyone in expressing themselves and reaching their full potential. Our commitment extends to reaching out to individuals from various backgrounds and identities. We do not discriminate based on gender identity, race, national origin, ethnicity, religion, age, sexual orientation, marital or family status, or mental/physical disabilities. C1 Truck Service is committed to collaborating with and providing reasonable accommodations to individuals with disabilities. If you need accommodation during the recruitment process, please inform your recruiter.

Diesel Repair Shop And Mobile Service When You Need It

We’re conveniently located at 175 McDonald Ave, Suite A-5 in Joliet, IL, right by I‑55 and Route 52. Can’t make it in? We also provide mobile and roadside truck repair within a 50-mile radius, using a fully equipped service van to get you and your business back on track.

Breakdowns don’t wait for shop hours. C1 Truck Service provides mobile truck repair and roadside assistance to get you moving again fast, wherever you’re stranded within our service radius.

Hydraulic system failures can shut down trucks and equipment fast. Our team provides reliable hydraulic services and repairs using quality components to restore performance and keep operations running safely.

When your diesel truck needs dependable repairs you can trust, C1 Truck Service delivers experienced diagnostics and repairs that reduce downtime and keep owner-operators and fleets moving safely and efficiently.

If you need a federal DOT inspection that meets FMCSA requirements and keeps your truck road-legal, C1 Truck Service delivers certified inspections you can trust to help avoid violations and costly downtime.

Managing a fleet requires consistency, reliability, and fast service. C1 Truck Service provides professional fleet services that reduce downtime, control maintenance costs, and keep commercial vehicles compliant and road-ready.

Trailer problems can shut down a load just as fast as truck failures. C1 Truck Service provides professional trailer repair for reefers, flatbeds, and commercial trailers to keep freight moving on schedule.

Structural damage and custom needs require skilled welding and fabrication. Our team provides dependable truck welding and fabrication services to restore strength, improve functionality, and support demanding work applications.

When your truck needs targeted upgrades or functional modifications, C1 Truck Service delivers practical solutions that improve performance, reliability, and job-specific capability without compromising safety or compliance.

Preventive maintenance helps catch small issues before they turn into costly breakdowns. C1 Truck Service provides reliable PM services that keep diesel trucks compliant, efficient, and ready for the road.

Stranded on the shoulder of the road? C1 Truck Service delivers dependable roadside truck repair to resolve common breakdowns fast and help drivers avoid tows, delays, and lost revenue.

Having the right truck parts and accessories matters for performance, safety, and long-term reliability. We help drivers and fleets source quality parts and practical upgrades that fit how their trucks are used.

Outfit your fleet with quality tires and flatbed equipment in Joliet, IL. Call C1 Truck Service today to order fleet-ready products that keep your trucks compliant, equipped, and ready for the road.

Great shop to do maintenance in your truck! I love the mechanic here are nice people! I really recommend this place millions per cent! If you need any type of maintenance in your truck. C1 truck service is the right place in Joliet Illinois.

This is a fantastic auto shop. Their team is incredibly professional and responsible. We mainly work with them because of their unwavering reliability; they have truly never let us down. Highly recommend - your vehicle is in expert, trustworthy hands here.

Fred Johnson

The quality of service was top-notch, and my trucks are running better than ever. Their prices were fair, with no hidden fees, and I truly appreciated their honesty and transparency throughout the process.

175 McDonald Ave # A,
Joliet, IL
60431, United States

M-F: 8AM to 5:30PM
Sat: 8AM to 12PM
Sun: Closed