Senior Heavy-Duty Diesel Fleet Mechanic Advertisement​/Master Technic

Benefits:

• 401(k) matching
• Dental insurance
• Health insurance
• Paid time off
• Vision insurance

BAM Resource Group BAM Resource Group Inc. is seeking an elite, hands-on Senior Heavy-Duty Diesel Fleet Mechanic / Master Technician to direct complex maintenance, heavy powertrain overhauls, and electronics calibration across our commercial fleet of Class 8 highway tractors and DOT MC-331 bulk liquefied petroleum gas (LPG) transport tankers.

This master-level role operates well beyond scheduled preventative maintenance. We require a diagnostic and rebuild specialist with proven master-tier mastery of Freightliner Cascadia platforms, complete Detroit DD15 engine overhauls, differential carrier rebuilds, automated (Detroit DT12) and manual (Eaton Fuller) transmissions, and advanced ECM/module flashing and parameter programming using Detroit and Freightliner factory software.

• Lead complete in-chassis and out-of-chassis engine overhauls on Detroit DD15 (and DD13/DD16) platforms, executing counter bore resurfacing, cylinder liner protrusion/shim adjustments, piston/rod pack replacements, and crankshaft journal/bearing overhauls.
• Perform precision cylinder head rebuilds, valve train geometry setups, dual overhead camshaft timing gear synchronization, high-pressure fuel pump replacements, and injector quantity calibration.
• Perform full bench teardown, inspection, and rebuild of heavy-duty Class 8 tandem drive forward and rear differential carriers (Detroit DA-RT-40.0, Meritor 14X/160 series, and Dana Spicer).
• Set and verify critical pinion bearing preloads, ring-and-pinion backlash, and gear tooth contact patterns (drive/coast); rebuild inter-axle differentials (IAD / power divider), driver-controlled differential locks (DCDL), side gears, and cross shafts.
• Utilize Detroit Diesel Diagnostic Link (DDDL 8.x Pro) and Diagnostic Link / Service Link to flash software, program calibrations, and initialize new and remanufactured vehicle control modules.
• Program, calibrate, and parameterize Detroit Engine Controllers (MCM), Motor Control Modules (CPC4 / CPC5), Aftertreatment Control Modules (ACM), and Transmission Control Modules (TCM).
• Configure and troubleshoot Freightliner multiplexed body controllers (SAM Cab & SAM Chassis), smart switches, CAN bus J1939/J1708 data backbones, and resolve complex terminating resistor faults.
• Diagnose, overhaul, and adapt Detroit DT12 automated manual transmissions (AMTs), including dual-clutch replacements, pneumatic clutch actuator replacements, split-gear cylinders, and learn-cycle adaptions.
• Overhaul and service Eaton Fuller 10, 13, and 18-speed manual transmissions, auxiliary sections, synchronize rs, shift forks, sliding clutches, dual-plate manual clutches, release bearings, and cross shafts.
• Rebuild and troubleshoot CARB/EPA exhaust aftertreatment, including Detroit "One-Box" removals, SCR catalysts, DPF differential pressure sensors, DEF doser calibration, and hydrocarbon injector service.
• Service DOT MC-331 / MC-330 bulk cargo vessels, Blackmer/Corken liquid pumps, compressors, Fisher internal safety valves, and remote pneumatic Emergency Shutdown Systems (ESD).
• Perform 90-day California Highway Patrol (CHP) BIT inspections and annual DOT periodic inspections, certifying absolute roadworthiness prior to dispatch.
• Assist with training and mentoring other mechanics when needed.

• Professional Experience
  • 7–10+ years of professional experience working on heavy-duty Calss 8 diesel fleet maintenance experience.
  • Demonstrated track record executing major engine overhauls (Detroit DD15), differential carrier rebuilds, and transmission overhauls.
  • Minimum 3+ years of dedicated diagnostic, repair, and programming experience on Freightliner Cascadia tractors.
• Computer Module Programming
  • Advanced proficiency flashing and configuring Freightliner / Detroit modules using DDDL 8.x Pro.
  • Full competency programming and pairing replacement MCM, ACM, CPC, TCM, and SAM Cab/Chassis units, modifying fleet governor parameters, and executing low-level multiplex diagnostic tracing.
• Technical Certifications
  • ASE Master Heavy Truck Technician Certification (T2 through T8) strongly preferred (minimum T2: Diesel Engines, T3: Drive Train, T4: Brakes, and T6: Electrical/Electronic Systems).
  • Factory OEM
    
    Certifications:
    
    Detroit Diesel Engine Overhaul, Detroit DT12 Transmission Specialist, or Meritor/Spicer Drivetrain Certification.
  • Certified Commercial Brake Inspector & Annual Vehicle…