Short Mountain Diesel, LLC

Short Mountain Diesel, LLC operates as a specialized diesel engine repair facility serving Smithville, Tennessee and surrounding communities. With a 4.4-star rating accumulated across 51 customer reviews, the shop has established a regional reputation for handling complex diesel drivetrain repairs and performance upgrades. The facility focuses on heavy-duty diesel platforms including 6.0L Powerstroke and Cummins-powered trucks, providing both diagnostic services and mechanical repairs for pickups and larger commercial diesel vehicles.

This contractor distinguishes itself through performance-oriented modifications alongside standard diesel repairs. The shop installs head studs for diesel engines prone to cylinder head issues, FASS fuel systems for improved fuel delivery, and provides custom tuning to optimize power and reliability. Customers note the shop handles unusual repair scenarios that dealership service departments either decline or quote at premium rates, including contamination remediation and fuel system recovery.

Customer feedback highlights specific repair scenarios handled by the team. One reviewer described a situation where accidental DEF fluid was introduced into the diesel fuel tank, requiring fuel system drainage, cleaning, and filter replacement. The shop completed the repair in significantly less time than a dealer service department estimated, at a fraction of the quoted cost. Another customer documented 3,000 miles of driving after head stud installation, noting stable operating temperatures regardless of load conditions. The shop maintains a steady flow of vehicles awaiting service, with customers noting that appointment wait times reflect the shop's demand for quality workmanship.