Sean Barnett
Corpus Christi,TX
Summary
Skilled Diesel Technician with a robust background in engine overhauls and aftertreatment diagnosis, notably at Freightliner. Excelled in electrical troubleshooting and ECM diagnostics, blending technical prowess with a knack for mentoring apprentices. Achieved the first successful Cummins MY013 Repower Project in North America, demonstrating unparalleled problem-solving skills and a commitment to safety.
Overview
13
13
years of professional experience
1
1
Certification
Work History
Diesel Technician
Corpus Christi Freightliner
Corpus Christi, TX
11.2022 - Current
- Repaired and serviced air conditioning, heating and electrical systems.
- Completed in-depth inspections of vehicle brakes, steering and other systems to check for safety and performance issues.
- Used diagnostics and troubleshooting tools to identify failures and equipment issues.
- Performed troubleshooting and diagnostic procedures to locate source of malfunctions.
- Completed Cummins online training for all engine platforms.
- Specialization in Cummins fuel system troubleshooting and repair.
- Performed engine overhauls on multiple engines, DD, CAT, Cummins, Paccar, heavy and medium duty engines.
- Advanced diagnostics and repairs on all Aftertreatment systems.
- Warranty repairs on Freightliners, including obtaining warranty coverage, supplying standard repair times, and filing RapidServe claims.
Diesel Technician
Freightliner Of Augusta
Augusta, GA
03.2020 - 11.2022
- Performed routine maintenance and repair services on diesel engines, including engine overhauls, fuel systems, cooling systems, exhaust systems, transmissions and clutches.
- Tested vehicle components to ensure proper functioning and identified potential malfunctions or defects.
- Diagnosed and repaired electrical problems in diesel engines using specialized diagnostic tools.
- Rebuilt diesel motors by replacing pistons, liners and other internal components. With special focus on Series 60 overhauls, with cutting counterbores for liner protrusion adjustment.
- Diagnosed and performed accurate repair on brakes, engines, suspensions, drive trains and transmission clutches.
- Performed warranty service and filed all paperwork.
TECHNICIAN
SELECT TRANSPORTAION RESOURCES
CORPUS CHRISTI, TX
05.2018 - 03.2020
- Freightliner Dealership
- Advanced diagnosis and troubleshooting on heavy and medium duty trucks
- Fulfill foreman and mentor duties as needed for the success of the shop
- Express Assess tech
- Major engine repairs and overhauls on CAT, DD, Detriot S60, DT12 transmissions
- Electrical and mechanical fabrication
- Diagnosis and repair on International, Ford, Sprinter, and Fuso medium duty platforms
- Notable mention: I was the first technician to successfully complete the Cummins MY013 Repower Project on an International CE bus in North America.
- Performed troubleshooting and repair of equipment in accordance with manufacturer specifications.
- Maintained records of repairs, calibrations, and tests performed on equipment.
TECHNICIAN
LONESTAR TRUCK GROUP
SAN ANGELO
01.2017 - 05.2018
- Freightliner Dealership
- Perform any and all repairs on trucks
- Diagnosis and repair of PTO systems and Oil field equipment, pumps, blowers, ect
- DD engine/Cascadia specialist, motor swaps and overhauls, transmission build and repair, DT12 specialist, fabrication and installation of drilling units on new truck chassis
- Electrical troubleshooting and diagnosis as well as installation of additional customer requested controls and gauges.
SHOP FOREMAN/LEAD TECH
AFFORDABLE DIESEL AND AUTO CARE
11.2015 - 01.2017
- Maintain shop efficiency and manage workload of 4 techs, diagnose and repair of vehicles and tractor trailers
- Worked on all vehicles from cars to trucks
- Performance package location and installation on medium duty diesels including egr/dpf deletes, OEM and aftermarket ecm reprograming
- Duties included diagnosis, build estimate for repairs needed, contact customers and gain approval, locate and order parts, and the repair as well.
TECHNICIAN
PREMIER TRUCK GROUP
SOUTH DALLAS
05.2014 - 11.2015
- Freightliner dealership
- Express Assess tech
- Perform diagnostics and repair on freightliner trucks
- Perform warranty and customer pay repairs on engines, transmissions, and all drive train components
- Troubleshoot electrical systems and datalinks
- Completed several for certifications in MBE, Detroit, G2, Western Star, M2, Cascadia, DT12, and Total Truck programs
TRACTOR TECHNICIAN
CRETE CARRIER CORP
09.2011 - 06.2014
- Performed major engine repairs, ECU installation and recalibrations
- Worked on Cummins ISX, Maxxforce 13 and 15, DD15, DD13, Series 60
- Extensive repair on aftertreatment devices, SCR/DOC/DPF diagnosis and repair
- A/C repairs on both bunk and cab
- Vast Knowledge and experience on Parksmart System, and No idle bunk HVAC
- Rebuild and diagnosis of ESPAR units.
Education
Diploma Program - DIESEL TECHNOLOGY
LINCOLN COLLEGE OF TECHNOLOGY
GRAND PRAIRIE, TX02.2012
Skills
- Electrical Troubleshooting Expertise, ECMs, and Module Diagnostics
- Diagnosis and Repair
- Harness building/repair, and circuit locations
- Engine, Transmission, drive train, and Aftertreatment Diagnosis
- Able to obtain and interpret technical service information
- Engine disassembly, assembly, overhauls and replacement
- Safety oriented
- Training and assistance to apprentices
- Mechanical and electrical fabrications and modifications for specific applications
- Drivability testing
- Work Order Interpretation
- Retrofitting experience
- Specializing in Freightliner
- Warranty repairs understanding
Certification
- Expert certified on DD15 and 13, DD8 and 5, S60, and MBE900 and 4000
- Expert certified on M2, Cascadia, New Cascadia, CEEA+, and Western Star
- Obtained master ASE certification in med/heavy duty trucks (need to complete recert tests)
References
References available upon request.
Timeline
Diesel Technician
Corpus Christi Freightliner
11.2022 - Current
Diesel Technician
Freightliner Of Augusta
03.2020 - 11.2022
TECHNICIAN
SELECT TRANSPORTAION RESOURCES
05.2018 - 03.2020
TECHNICIAN
LONESTAR TRUCK GROUP
01.2017 - 05.2018
SHOP FOREMAN/LEAD TECH
AFFORDABLE DIESEL AND AUTO CARE
11.2015 - 01.2017
TECHNICIAN
PREMIER TRUCK GROUP
05.2014 - 11.2015
TRACTOR TECHNICIAN
CRETE CARRIER CORP
09.2011 - 06.2014
Diploma Program - DIESEL TECHNOLOGY
LINCOLN COLLEGE OF TECHNOLOGY
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