Medium-Duty Diesel Repair in Spokane, WA, at Our Monroe Street Location

Medium-duty diesel trucks are built to handle heavier loads, longer distances, and demanding work environments. Whether your vehicle is used for commercial operations, construction, or hauling, regular maintenance is essential to ensuring durability and efficiency. At Tune Tech’s Monroe Street location, we specialize in medium-duty diesel repair in Spokane, WA, providing expert service for Cummins, Power Stroke, and Duramax engines. Our team is equipped to handle everything from preventative maintenance to major repairs.

Preventative Maintenance for Medium-Duty Diesel Trucks

A well-maintained diesel engine delivers reliable performance and extends the life of your vehicle. Essential services such as oil and filter changes, cooling system flushes, and fuel system cleanings help prevent costly breakdowns. Turbocharger inspections, air filter replacements, and EGR valve servicing also contribute to maintaining engine efficiency. Our technicians follow factory-recommended maintenance schedules to ensure your Cummins, Power Stroke, or Duramax engine remains in top condition.

Fuel Injection and Turbo System Repairs

The high-performance nature of medium-duty diesel trucks relies on an efficient fuel delivery system and properly functioning turbocharger. If you notice excessive smoke, rough idling, or power loss when towing, it could indicate failing fuel injectors, a clogged fuel pump, or turbocharger issues. Symptoms such as boost pressure loss, unusual noises, or delayed throttle response often point to turbo system failure. Our team diagnoses and repairs these components to restore power and efficiency.

Exhaust and Emissions System Service

Modern diesel trucks are equipped with diesel particulate filters (DPF), exhaust gas recirculation (EGR) systems, and selective catalytic reduction (SCR) technology to reduce emissions. If you’re experiencing poor fuel economy, excessive soot buildup, or frequent DPF regeneration cycles, these systems may need cleaning or repair. We provide professional emissions servicing to keep your truck compliant and running efficiently.

Transmission and Drivetrain Maintenance

Medium-duty diesel trucks endure heavy workloads that put strain on the transmission and drivetrain. Slipping gears, delayed shifting, and overheating are common signs of transmission trouble. Differential servicing, transfer case inspections, and cooling system repairs help ensure your truck operates smoothly under all conditions. Our technicians provide expert repairs to keep your vehicle road-ready.