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Diesel Emissions Testing Jobs in Texas (NOW HIRING)

First Student, Inc.

Lead Diesel Technician

Joshua, TX · On-site

$30/hr

Company-paid ASE testing and training materials. * Company-paid CDL Class B training and licensing ... Maintain advanced knowledge of engines, emissions, transmissions, brakes, hydraulics, electrical ...

First Student

Lead Diesel Technician

Joshua, TX

$30/hr

Company-paid ASE testing and training materials. * Company-paid CDL Class B training and licensing ... Maintain advanced knowledge of engines, emissions, transmissions, brakes, hydraulics, electrical ...

First Student

Lead Diesel Technician

Joshua, TX · On-site

$30/hr

Company-paid ASE testing and training materials. * Company-paid CDL Class B training and licensing ... Maintain advanced knowledge of engines, emissions, transmissions, brakes, hydraulics, electrical ...

Rolfson Oil

Diesel Mechanic

TX · On-site

$20.50 - $27/hr

... fuel, emission, brake, steering, hydraulics, and making adjustments and alignments including ... Comply with federal and state vehicle requirements by testing engine, safety, and combustion ...

Rolfson Oil

Diesel Mechanic

De Berry, TX · On-site

$20.50 - $27/hr

... fuel, emission, brake, steering, hydraulics, and making adjustments and alignments including ... Comply with federal and state vehicle requirements by testing engine, safety, and combustion ...

Rolfson Oil

Diesel Mechanic

Odessa, TX · On-site

$22.75 - $30.25/hr

... fuel, emission, brake, steering, hydraulics, and making adjustments and alignments including ... Comply with federal and state vehicle requirements by testing engine, safety, and combustion ...

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All JobsDiesel Emissions Testing JobsDiesel Emissions Testing Jobs in Texas

Diesel Emissions Testing information

What is the difference between Diesel Emissions Testing vs Diesel Mechanics?

AspectDiesel Emissions TestingDiesel Mechanics
CertificationsEnvironmental or emissions-specific certificationsASE certifications, diesel engine certifications
Work EnvironmentTesting labs, vehicle inspection sitesRepair shops, garages, fleet maintenance facilities
Job FocusMeasuring and ensuring emissions complianceDiagnosing and repairing diesel engine issues
Industry UsageRegulatory agencies, environmental complianceVehicle repair, maintenance, and service

While Diesel Emissions Testing focuses on measuring and ensuring diesel vehicles meet environmental standards, Diesel Mechanics are responsible for diagnosing and repairing diesel engines. Both roles require technical skills, but emissions testers concentrate on compliance testing, whereas mechanics handle repairs and maintenance.

How much do diesel emissions testers make per hour?

Diesel emissions testers typically earn between $15 and $25 per hour, depending on experience, location, and certification level. The role often requires knowledge of testing equipment and environmental regulations, with some positions offering overtime or benefits.

How to become a diesel emissions testing technician?

To become a diesel emissions testing technician, you typically need a high school diploma or equivalent, followed by specialized training in emissions testing procedures and equipment operation. Certification from the Environmental Protection Agency (EPA) or state agencies is often required, and technicians should have good mechanical skills and attention to detail to accurately perform tests and interpret results.

What are popular job titles related to Diesel Emissions Testing jobs in Texas?

For Diesel Emissions Testing jobs in Texas, the most frequently searched job titles are:

What job categories do people searching Diesel Emissions Testing jobs in Texas look for?

The top searched job categories for Diesel Emissions Testing jobs in Texas are:

Diesel Emissions Testing jobs near you
Infographic showing various Diesel Emissions Testing job openings in Texas as of August 2026, with employment types broken down into 1% As Needed, 84% Full Time, 11% Part Time, and 4% Contract. Highlights an 89% Physical, 2% Hybrid, and 9% Remote job distribution.

Diesel Mechanic - Fort Worth

Fort Worth Carrier Corporation

Fort Worth, TX

$35/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted yesterday

Job description

Job Openings >> Diesel Mechanic - Fort Worth
Diesel Mechanic - Fort Worth
Summary
Title: Diesel Mechanic - Fort Worth ID: 1163 Location: Fort Worth, TX
More about this job >
Description
Class 8 Diesel Mechanic - Heavy Duty Trucks

Job Type: FullTime
Pay: Up to $35 per hour (Based on experience)
Schedule: Day Shift Mon - Fri 8:00 AM - 4:30 PM / Some Weekends may be required
Location: Fort Worth, Texas

Job Description

Fort Worth Carrier Corporation is a dedicated carrier servicing a major retailer's private fleet since 1980.   Our fleet consists of Cummins powered T680 Kenworth tractors, dollies, yard trucks, various makes of dry van pup trailers, and service vehicles. We are hiring an experienced Class 8 Diesel Mechanic to perform maintenance and repairs on heavyduty tractors. This role focuses on keeping our fleet safe, compliant, and roadready through accurate diagnostics, timely repairs, and preventative maintenance.

This is a handson position for mechanics with strong diesel engine, electrical, and DOT inspection experience.

Responsibilities
  • Diagnose and repair Class 8 diesel tractors
  • Perform preventative maintenance and scheduled services
  • Repair diesel engines, transmissions, clutches, brakes, suspension, steering, HVAC, and electrical systems
  • Conduct DOT inspections and ensure compliance
  • Troubleshoot ECMs and emissions systems (DPF, DEF, SCR)
  • Use diagnostic OEM software and tools
  • Complete repair documentation accurately
  • Maintain shop safety and cleanliness
  • Respond to breakdowns as needed
Requirements
  • 5+ years of Class 8 diesel mechanic experience
  • Strong knowledge of diesel engines and heavyduty truck systems
  • Ability to diagnose electrical and mechanical issues
  • DOT inspection experience (required or preferred)
  • Valid driver's license (CDL preferred, not required)
  • Ability to lift up to 75 lbs
  • Reliable attendance and strong work ethic
Essential Functions:
  • Inspections
    • FMCSA Inspections
    • Bumper-to-Bumper Preventive Maintenance Inspection and Service
    • Maintain Preventive Maintenance Schedule
  • Diagnostics
    • Diagnose all fleet maintenance issues
    • Experience with OEM software for electronic diagnosis
    • Identify source of malfunctions using a variety of testing equipment including electronic testing equipment
    • Identify electrical issues and electronic troubleshooting
    • ABS Service including diagnostics
  • Emissions
    • Diagnose and repair exhaust after treatment systems
  • Repairs
    • Follow policy and procedures designated to routinely repair all fleet-owned equipment
    • Engine Repairs including transmissions and differentials
    • Steering Mechanisms
    • Air Conditioning System Repairs
    • Brake replacement and repair
    • Wheel replacement and repair including bearings
    • Perform routine repair and maintenance to tractor safety systems including collision avoidance and collision mitigation
  • Safety
    • Safety oriented and completes required safety training
    • Keeps work area and shop clean and clutter free
  • Other Routine Duties
    • Monitor inventory and notify shop manager to maintain proper inventory levels
    • Some Fabrication and welding
    • Enter electronic work orders and charge out parts
 
Preferred Qualifications
  • ASE Diesel Certifications (T2-T8)
  • Experience with Cummins, Detroit, Paccar, Volvo, or Freightliner
  • Emissions and aftertreatment experience
  • Fleet or transportation industry background
  • Welding or fabrication experience
Benefits
  • Competitive hourly pay + minimal overtime
  • Medical insurance with either Health Savings Account (HSA) or Flex Spending Account (FSA) option (Zero cost medical option available)
  • Voluntary vision, dental, life, short/long term disability insurance plan options
  • 401(k) with company match up to 6%, 100% vested from day 1
  • $25,000 company-paid term life insurance with voluntary buy up options
  • Paid time off & paid holidays
  • Companyprovided uniforms & PPE
  • 25% retail discount
Work Environment
  • Qualified mechanics must possess their own basic mechanic tools to effectively service class 8 tractors
  • Wellequipped maintenance facility
  • Safetyfirst culture
  • Stable workload with modern equipment

 
Apply Now
 
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