Oswaldo Aguilar
Orange,CA
Summary
Detail-oriented diesel automotive technician with strong mechanical aptitude and diagnostic testing skills. Proven ability to troubleshoot complex issues and deliver accurate repair estimates, ensuring customer satisfaction and safety compliance.
Overview
1
1
Language
8
8
years of professional experience
Work History
Technician
harbor chevrolet
Long Beach, California
12.2025 - Current
- Replaced defective parts with new or reconditioned components per manufacturers' instructions.
- Diagnosed drivability issues on gasoline and diesel vehicles using scan tools.
- Tested automotive systems, including brakes, steering, suspension, transmission, and engine performance.
- Attended technical training courses to enhance expertise in automotive repair.
- Repaired engines and transmissions, providing labor and parts cost breakdowns for work performed.
- Provided accurate estimates of repair times to customers prior to work being performed.
- Kept detailed records of repairs, labor involved and parts used.
- Identified recurring problems reported by customers in order to develop solutions that prevent future occurrences.
- Tested components and systems using infrared engine analyzers, compression gauges and computerized diagnostic devices.
- Trained and guided employees on correct methods for performing different repairs and maintenance services.
- Evaluated vehicle schematics to assess required parts and order accordingly.
Technician
selman
orange , CA
07.2022 - 12.2025
- Executed routine maintenance on vehicles to ensure optimal performance and safety.
- Collaborated with service advisors to deliver accurate repair estimates for customers.
- Replaced defective components as required to maintain equipment functionality.
- Troubleshot and repaired equipment according to manufacturer specifications.
Tire Technician/Customer Sales Representative
Americas Tire
Orange, California
01.2019 - 07.2022
- Inspected tires for wear, damage, and proper inflation levels.
- Conducted tire rotations and alignments to ensure optimal performance.
- Managed inventory of tires and related supplies accurately.
- Assisted customers with tire selection based on vehicle specifications.
- Maintained cleanliness and organization of work area consistently.
- Provided training to new staff on safety procedures and equipment use.
- Performed minor repairs, such as valve stem replacements, on customer vehicles' tires.
- Removed old tires from rims using specialized tools such as bead breakers and tire irons.
- Replaced worn tires with new ones of the same size and type.
- Completed day-to-day duties accurately and efficiently.
- Worked successfully with diverse group of coworkers to accomplish goals and address issues related to our products and services.
- Promoted high customer satisfaction by resolving problems with knowledgeable and friendly service.
Education
Gm Certified - Automotive
Cerritos College
Norwalk, CA05-2026
Skills
- Engine repair
- Technical training
- Customer service
- Diagnostic testing
- Vehicle maintenance
- Safety compliance
- Tech-Savvy
- Repair services
- Mechanical Knowledge
- Mechanical aptitude
- Engine performance
- Valve body repair
- Transmission diagnostics
- Transmission rebuild
- Differential repair
- Automotive testing
- Engine overhaul procedures
- Diesel engine expertise
- Fuel system repair
Languages
Spanish
Limited
Affiliations
- fishing
- off-roading
Timeline
Technician
harbor chevrolet
12.2025 - Current
Technician
selman
07.2022 - 12.2025
Tire Technician/Customer Sales Representative
Americas Tire
01.2019 - 07.2022
Gm Certified - Automotive
Cerritos College