Heavy Line Technician

HARDIN AUTOMOTIVE GROUP; Anaheim (CA); On-site; USD 70,000 - 100,000; Full time

Benefits offered by this job

Sign-On Bonus up to $3,000

Health insurance

401(k) plan

Paid time off

GM factory training

Modern shop

Job summary

HARDIN AUTOMOTIVE GROUP in Anaheim is seeking an experienced GMC Heavy Line Technician. You’ll diagnose and perform major engine, transmission, and drivetrain repairs, focusing on GM gasoline and Duramax diesel platforms.

You will use GM factory tools and diagnostics daily, delivering high-quality workmanship in a busy shop. The role requires 3+ years in heavy-line repair, GM dealership exposure, and active ASE or GM training credentials.

Qualifications

• 3+ years of heavy-line engine/transmission repair experience.
• GM dealership experience preferred.
• Active ASE certs (A1, A2, A9) or GM factory training.
• Own a full set of professional tools and a roll-cart.
• Ability to use GM repair manuals, wiring diagrams, and shop software.
• Valid driver’s license with clean record.

Responsibilities

• Major mechanical repair: engines, transmissions, drivetrains for GM vehicles.
• Diagnose issues using GM tools and electrical troubleshooting.
• Prepare accurate warranty and customer-pay repair documentation.
• Maintain clean, safe workspace and comply with OSHA rules.

Skills

Heavy line experience

GM dealership experience

ASE A1/A2/A9

GM Duramax knowledge

Digital repair manuals

Valid driver’s license

Tools

GDS2

Tech2

Oscilloscope

Job description

GMC dealership heavy line technician

Sign-On Bonus: Qualified candidates may be eligible for a sign-on bonus of up to $3,000, payable after 90 days of continuous employment, subject to eligibility requirements, satisfactory performance, and dealership bonus program terms.

Seeking an experienced and motivated GMC Heavy Line Technician to join our busy service department. In this critical role, you will diagnose and perform major mechanical repairs on GMC cars, SUVs, and light/medium-duty trucks. You will specialize in complex engine overhauls, transmission rebuilds, and drivetrain repairs. We offer top-tier compensation, a fully equipped shop, ongoing GM factory training, and a steady stream of high-paying heavy line work.

Key Responsibilities

• Major Mechanical Repair: Perform engine teardowns, rebuilds, and replacements for both GM gasoline and Duramax diesel engines.
• Drivetrain & Transmission: Diagnose, overhaul, and repair automatic/manual transmissions, differentials, transfer cases, and drive axles.
• Advanced Diagnostics: Utilize GM factory scan tools (GDS2, Tech2) and oscilloscope equipment to troubleshoot complex electrical, drivability, and network issues.
• Quality Workmanship: Execute multi-point inspections and ensure all repairs meet factory safety and performance standards.
• Documentation: Clear and accurate writing of root causes, correction steps, and precise measurements for warranty and customer-pay repair orders.
• Shop Safety: Maintain a clean, organized, and safe workspace, adhering to all OSHA and dealership environmental regulations.

Qualifications & Skills

• Experience: Minimum 3+ years of professional automotive repair experience, with a heavy emphasis on heavy line, engine, or transmission work.
• Brand Expertise: Prior GM dealership experience and strong familiarity with Duramax diesel platforms are highly preferred.
• Certifications: Active ASE certifications (specifically A1 Engine Repair, A2 Automatic Transmission, and/or A9 Light Vehicle Diesel) or GM factory training credentials.
• Tools: Must possess a comprehensive inventory of personal professional tools and roll-cart.
• Tech Savvy: Ability to comfortably navigate digital repair manuals, wiring diagrams, and shop management software.
• Driving Record: Valid driver’s license with a clean record to test-drive customer and dealership vehicles.

What We Offer

• Competitive Pay: Aggressive flat-rate schedule based on your experience and GM certification level, with production bonuses.
• Benefits Package: Comprehensive health, dental, and vision insurance.
• Retirement Planning: 401(k) retirement plan with dealership matching.
• Paid Time Off: Generous paid vacation, holidays, and sick leave.
• Career Growth: Fully paid, continuous GM factory training and EV safety certifications to keep your skills sharp.
• Modern Shop: Clean, well-lit service bays with updated heavy lifts and factory diagnostic software.

Ideal candidates will have:

Experience in performing warranty and non-warranty inspections, diagnostic, maintenance, and repair service on various vehicle makes and models.

Proven track record of achieving or over-achieving goals

Outstanding communication skills

Professional appearance and work ethic

Great attitude with a high-energy personality

Superior customer service skills

Ability to read and comprehend instructions

Ability to exercise good judgement

Valid State drivers license and good driving record

Compensation:

We offer Very competitive pay, Medical. 401(k) program, paid vacation, and a professional work environment.

Become a member of a winning team that offers growth opportunity, excellent earning potential and leadership that appreciates your drive, skills and ability.

When you join our organization, you'll enjoy comprehensive training, competitive compensation, and unparalleled benefits. Simply put, you'll experience the best that a career in the automotive industry has to offer.

The above statements are intended to describe the general nature and level of the work being performed by people assigned to this work. This is not an exhaustive list of all duties and responsibilities. We reserve the right to amend and change responsibilities to meet business and organizational needs as necessary.

We are anEqual Opportunity Employer and a drug free workplace.