Sound Diesel Performance

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About Sound Diesel Performance
Sound Diesel Performance operates as a dedicated diesel engine repair facility located in Auburn, Washington, where the team holds certifications servicing Ford Power Stroke, Chevrolet Duramax, and Dodge Cummins powertrains. With a rating of 4.9 stars drawn from 161 customer reviews, the shop has earned strong community credibility. The business serves Auburn residents alongside nearby communities including Federal Way, Kent, and Puyallup, focusing exclusively on diesel-powered vehicles rather than general automotive repair.
The shop distinguishes itself through factory-level certifications across the three dominant diesel platforms, enabling diagnosis and repair of complex fuel systems, turbochargers, and high-pressure oil subsystems that require specialized tooling. Website text confirms the team handles performance upgrades including injector replacement, turbo upgrades, and programmer installation. Additionally, the facility offers transmission service for diesel applications, addressing a common failure point in heavy-duty trucks.
Customers recount specific encounters with Gene, whom reviewers identify as the lead technician. One customer describes a same-day repair for a failed fuel pump, noting Gene diagnosed the issue within minutes. Another reviewer highlights Gene's transparency about future maintenance needs, recommending repairs based on timing and budget rather than immediate necessity. A third customer recounts accommodating a tight schedule when parts compatibility issues arose, with the shop sourcing compatible components at no additional charge.
What Customers Say
All 161 reviewers awarded 5-star ratings, with multiple customers specifically crediting Gene for same-day turnaround, transparent diagnostics, and willingness to accommodate tight schedules. Four reviewers mention the shop proactively addressing parts compatibility issues beyond the original scope.
Working Hours
| SundayToday | Closed |
| Monday | 8 AM–5 PM |
| Tuesday | 8 AM–5 PM |
| Wednesday | 8 AM–5 PM |
| Thursday | 8 AM–5 PM |
| Friday | Closed |
| Saturday | Closed |
Services
Ford Power Stroke Service
Certified repair for 6.0L, 6.4L, and 6.7L Power Stroke engines including injector, turbo, and HPOP system diagnostics.
Chevrolet Duramax Service
Factory-level service for LB7, LLY, LBZ, LMM, and newer Duramax platforms covering fuel system and emission components.
Dodge Cummins Repair
Complete Cummins engine service for 5.9L and 6.7L variants including transmission integration for heavy-duty applications.
Turbocharger Replacement
Turbo upgrade and pedestal service with diagnostic monitoring of boost pressure and wastegate actuation.
Transmission Service
Diesel-specific transmission repair and service addressing torque converter and clutch systems unique to diesel applications.
Performance Upgrades
Installer of programmers, hydra chips, exhaust systems, and related performance modifications.
Full Fluid Service
Complete fluid exchange across engine, transmission, and differential systems using manufacturer-specified lubricants.