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Mobile Service Diesel Mechanic / Technician

Company:
NW Fleet Truck/Trailer Repair, Inc.
Location:
Tukwila, WA, 98168
Posted:
November 03, 2025
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Description:

Self-sufficient experienced diesel mechanic needed for mobile service. Employee will be placed in a mobile service truck and be responsible for multiple fleet customers in addition to service calls. Must be able to diagnose problems with run ability of trucks and equipment.

Job Requirements:

Accurately diagnose and repair all parts and components on class 5 through class 8 trucks and trailing equipment in a quality fashion including but not limited to the following:

Perform front line mechanic inspections, preventive maintenance services and DOT inspections on both diesel and gasoline vehicles as well as trailers

Diagnose and repair air and hydraulic brake systems, suspension, and steering components

Diagnose and repair starting and charging system components

Diagnose, repair, and replace drive train components including engines, transmissions, clutches, drivelines, and differentials

Diagnose and repair air conditioning systems including compressors, valves, condensers, and evaporators

Utilize diagnostic tools including laptops, scanners, wiring diagrams and measuring tools including a caliper

Diagnose and repair electrical and lighting systems, ABS systems, tire and brake monitoring systems, engine, body and transmission electronics

Perform welding and fabrication with steel, stainless steel, and aluminum

Perform minor repairs on semi-trailers and truck cargo boxes including roll up and swing door repairs, tire replacement, brake repairs, suspension repairs, electrical systems and repair panels, roofs and frame rails

Respond to vehicle breakdowns in the field when requested

Be able to work some overtime as needed

Ability to take after hours/weekend service calls on a rotational basis as needed

Work closely with and assist other mechanics on specified tasks as needed

Operate Company vehicles in accordance with local, state, federal and Company policy and safe driving practices

Maintain service truck to keep in good working order, keep interior and exterior clean, keep tools and supplies in an organized manner

Order parts from vendors to complete specific repairs along with ordering stock parts within the Company system to maintain stock levels on service truck

Perform occasional facility maintenance for the Company and/or customer's facilities

Perform all other duties as assigned by Supervisor, Area Fleet Manager or Maintenance Coordinator

Thoroughly, timely, neatly and accurately document vehicle repairs and maintenance including a complete accounting of all labor hours, parts and materials used through maintenance software and daily worksheets.

Provide excellent customer service and maintain a positive working relationship with all fleet, customer, and operations personnel

Display professional conduct with customers, co-workers, outside suppliers and contacts

Conduct daily communications with assigned fleet customers on schedule repairs and equipment status

Maintain safe and clean work area

Take responsibility for and demonstrate safe work practices

Adhere to Company and OSHA safety guidelines

Operate a forklift as needed to perform repairs and move heavy parts

Qualifications:

3 to 5 years of relevant experience or combination of school and experience

Valid Driver's license and good driving record required

CDL preferred but not required

Pass a criminal history background screen as required by our customer base

Be able to lift and install all parts required to perform the job including heavier parts such as brake drums, tires, flywheels, clutches, starters, suspension spring packs, etc.

Benefits include:

medical, health savings plan, dental, vision, vacation, sick pay, holiday pay, retirement plan, life insurance, uniforms provided

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