Flatout Diesel LLC
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Claim This BusinessAbout Flatout Diesel LLC
Flatout Diesel LLC operates as a diesel engine repair specialist serving the greater Indianapolis region, with particular focus on light and medium-duty truck applications. The business maintains a 4.7-star rating derived from 15 client reviews, reflecting consistency in service delivery across various diesel powertrain concerns. Their facility handles both routine maintenance intervals and complex diagnostic challenges involving modern diesel propulsion systems. Callers reach the shop directly at (765) 754-8344 during standard business hours Monday through Friday.
The shop distinguishes itself through capability with newer diesel architectures featuring advanced emissions control integration and computerized engine management. Reviews reference specific resolution of problems spanning turbocharger diagnostics, fuel injection circuits, and transmission-electronic interfaces requiring manufacturer-specific programming tools. The technician carries relationships with parts suppliers enabling acquisition of components sometimes considered discontinued, a practical advantage when servicing older model-year diesel vehicles that may no longer enjoy full dealer-parts distribution networks.
Customer narratives captured across reviews document scenarios ranging from diagnostic spanning multiple weeks resolved within single visits, to cross-country travel breakdowns requiring mobile response under time-sensitive conditions. One reviewer notes Justin managed replacement of a faulty fuel injector on a truck three hours from home, sourcing the component and completing repairs enabling safe return. Another describes phone-based consultation following transmission reassembly, with guidance on appropriate break-in procedures. These accounts illustrate capacity for both front-counter diagnostics and field-assistance scenarios.
What Customers Say
Eight published reviews collectively award five stars, with customers referencing specific resolution of transmission wiring harness failures, programming ignition system security codes, turbocharger diagnostics, fuel injector replacement, and full transmission overhaul. Multiple reviewers credit the same technician with personal attention and proactive communication throughout their repair experience.
Working Hours
| Sunday | Closed |
| Monday | 8 AM–5 PM |
| Tuesday | 8 AM–5 PM |
| Wednesday | 8 AM–5 PM |
| Thursday | 8 AM–5 PM |
| Friday | 8 AM–5 PM |
| SaturdayToday | Closed |
Services
Diesel Engine Diagnostics
Computerized assessment of powertrain faults, emission system concerns, and performance anomalies using manufacturer-specific scanning tools.
Turbocharger Repair
Diagnosis and replacement of turbocharger assemblies including electronic boost controls and wastegate calibration for modern diesel engines.
Fuel Injection System Service
Injector replacement, fuel rail pressure regulation, and high-pressure pump diagnostics for light and medium-duty diesel applications.
Transmission Repair & Rebuild
Complete transmission overhauls including electronic control module programming, Torque converter service, and road-test verification.
Electrical & Wiring Harness Repair
Factory-grade wiring harness replacement, symptom-based circuit diagnosis, and integration testing for transmission and ignition systems.
Ignition & Security Programming
Key cylinder pin code programming, PATS reconfigurations, and immobilizer system resets requiring dealer-level software access.
Mobile Roadside Assistance
On-site diagnostic and repair services for Stranded diesel vehicles, reducing tow requirements for mobile-repairable failures.