Freightliner

Freightliner owners count on uptime—and so do we. At Britt’s Diesel, we maintain Cascadia, M2, 108/114SD, and vocational models with brand-aware diagnostics, spec-correct parts, and clear communication. Whether you’re hauling the 395 corridor or working job sites in the Owens Valley, our workflow is built to deliver fast, accurate fixes and documented results.

Diagnostics & Common Repairs

We don’t guess and swap. Our techs follow a test-first plan to find the root cause, control costs, and prevent comebacks.

What we solve every week

• Electrical/CAN & lighting faults: intermittent power loss, module errors, poor grounds, corroded connectors, harness chafe
• Low power, derates, frequent regens: DPF/DEF/SCR issues, NOx/DP/temp sensors, dosing/injectors, wiring integrity
• Boost & air-handling: turbo/VGT actuator concerns, charge-air cooler leaks, smoke/pressure testing
• Cooling & HVAC: overheating on grades, fan control, heater core and blend-door performance, CAC efficiency checks
• Brakes & ABS/air systems: chambers, valves, dryers, lines, sensors/toner rings
• Steering/suspension & driveline: u-joints, carrier bearings, wheel ends, seals, ride-height and alignment problems
• Leaks: oil/coolant/fuel with root-cause confirmation—not just top-offs

Repairs are validated with live-data logs, pressure/flow tests, voltage-drop checks, and a loaded road test so the fix sticks.

Engines, Transmissions & Platforms We Service

Freightliner chassis show up with a range of powertrains—we support them all.

• Engines: Detroit (DD13/DD15/DD16), Cummins (B6.7, L9, X12, X15), and other spec’d options
• Transmissions: Detroit DT12, Eaton Fuller (manual/automated), Allison automatics
• Models: Cascadia, M2, 108/114SD, vocational mixers/dumps/roll-offs, and specialized bodies

We coordinate engine, transmission, and chassis in one plan—one estimate, one schedule, one result.

Major Repairs: Engines & Transmissions

When the job goes beyond routine service, we build a measured plan around your routes and deadlines.

Engine overhauls & replacements

• Failure confirmation: compression/leak-down, injector balance/return, oil analysis, boost/cooling integrity
• In-frame/out-of-frame overhauls (head, liners/pistons, bearings, oil pump, timing components, full gasket/seal kits, overhead set)
• Aftertreatment integration: DPF clean/replace, sensor calibration, EGR/DEF checks to prevent post-overhaul derates
• Reman/long-block options when uptime or economics favor a swap
• Final validation: hot/cold starts, leak/boost checks, data logs and road tests

Transmissions (DT12/Eaton/Allison)

• Actuator/solenoid/TCM diagnostics, software updates and adaptations
• Manual gearbox service (synchronizers, bearings, seals)
• Clutch & flywheel replacement plus driveline refresh to protect rebuilt/new units

Preventive Maintenance & Fleet Programs

Eastern Sierra grades and temps punish cooling and aftertreatment—PM matters. We tailor intervals to duty cycle and terrain.

PM coverage

• Engine oil/filters matched to use case
• Fuel filtration & water separator service
• Coolant testing/exchange; hose/clamp and CAC efficiency checks
• Transmission/axle/PTO fluids to spec
• Brake/air-system and wheel-end inspections; torque/mount audits
• Battery/charging load tests and electrical integrity checks

Fleets receive priority bays, VIN-level history, PM calendars, consolidated invoicing, and proactive advisories to lower cost-per-mile.

BIT/DOT Compliance

We prep Freightliners to pass the first time—lighting, brakes, tires, leaks, steering/suspension—then provide clean documentation for audits and resale records. If we find a deficiency, we correct it fast.

Get your Freightliner back on schedule with Britt’s Diesel—brand-savvy diagnostics, durable repairs, and the documentation fleets need.