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Power Stroke, Cummins, or Duramax — FloState Auto Diesel Repair specializes in diesel truck diagnostics, engine repair, and preventative maintenance. Factory-level diagnostic software, ASE-quality technicians, and a 13,000 sq ft state-of-the-art facility built for diesel.
BBB A+ Accredited | Family-Owned Since 2017 | Financing Available
Diagnostics, repairs, maintenance — we handle it all
No obligation. We accept extended warranties & offer financing.


FloState Auto Diesel Repair provides full-service diesel engine repair in St. Cloud, FL. ASE-certified technicians specializing in Power Stroke, Cummins, and Duramax diesel engines, with factory-level diagnostic software for Ford, GM, and Chrysler. Same-day diagnostics available at our 13,000 sq ft facility on Hamlin Ave.
Diesel engines are known for their durability, efficiency, and torque. Unlike gasoline engines, diesel engines rely on compression ignition to ignite the fuel-air mixture, resulting in higher efficiency and power output. Key components of a diesel engine include the fuel injector, glow plug (for cold starts), turbocharger (in many modern diesel engines), and high-pressure fuel pump.
Despite their robust design, diesel engines can experience various issues over time. Some common diesel engine problems include:
Glow plugs are essential for starting a diesel engine, especially in cold weather. Failure of one or more glow plugs can result in difficult starting or rough idling.
Fuel injectors play a crucial role in delivering fuel to the engine cylinders. Clogged or malfunctioning injectors can lead to poor fuel economy, rough running, and smoke from the exhaust.
Turbochargers are prone to issues such as boost leaks, worn bearings, and compressor or turbine wheel damage. Turbocharger failure can result in reduced engine power and efficiency.
Diesel fuel systems are susceptible to contamination from water, dirt, and debris. Contaminated fuel can cause injector clogging, fuel pump damage, and engine performance issues.

It’s essential to be aware of the signs indicating that your diesel engine may need attention. Some common symptoms of diesel engine problems include:
Difficulty starting the engine, especially in cold weather, can indicate issues with glow plugs, fuel delivery, or compression.
A noticeable loss of engine power or acceleration could be due to fuel system problems, turbocharger issues, or engine component wear.
Excessive black, white, or blue smoke from the exhaust could indicate fuel system problems, worn piston rings, or turbocharger issues.
Rough or unstable idling can result from injector issues, fuel system contamination, or air intake problems.
When it comes to diesel repair, FloState Auto Diesel Repair is your trusted partner. Here’s why:
Our technicians have extensive experience working with diesel engines of all makes and models. Whether you drive a medium-duty truck or diesel-powered car, we have the knowledge and skills to diagnose and repair any diesel engine issue.
We invest in advanced diagnostic tools and equipment to accurately diagnose diesel engine problems and perform precise repairs. From fuel system diagnostics to turbocharger testing, we have the tools to get the job done right the first time.
We use only high-quality replacement parts from trusted manufacturers to ensure lasting reliability and performance for your diesel engine. Our commitment to quality extends to our service, ensuring that your vehicle receives the care and attention it deserves.
We believe in transparent communication with our clients, keeping you informed throughout the repair process and providing clear explanations of the work needed and the associated costs. You can trust us to prioritize your safety and satisfaction at every step.
Conveniently located in St. Cloud, FL, our shop is easily accessible for all your diesel repair needs. With flexible scheduling and prompt service, we make it easy to keep your diesel engine running smoothly and efficiently.

At FloState Auto Diesel Repair, we understand the importance of enhancing your diesel vehicle’s performance, functionality, and aesthetics. That’s why we offer a wide range of premium diesel accessories designed to elevate your driving experience. From Roll N Lock bed covers, Fass Fuel Systems to Ranch Hand Bumpers and Titan Fuel Tanks, our selection of accessories is curated to meet the needs of diesel enthusiasts like you. Whether you’re looking to improve fuel efficiency, add extra protection to your truck bed, or enhance the convenience of your vehicle, our lineup of top-quality accessories has you covered. Explore our collection and take your diesel vehicle to the next level with FloState Auto Diesel Repair.
At FloState Auto Diesel Repair, we pride ourselves on providing a comfortable and convenient experience for our valued clients. Our state-of-the-art facility is equipped with a range of amenities to enhance your visit, including:
Diesel repair costs vary depending on the issue. A diagnostic starts at X. Common repairs like injector cleaning range from $X– X, while major engine work varies by job. We provide a transparent estimate before any work begins. Call (407) 498-4204 for a quote.
Yes. FloState specializes in the three major diesel platforms: Ford Power Stroke, RAM Cummins, and Chevy/GMC Duramax. We also service other diesel-powered vehicles. Our technicians use factory-level diagnostic software for Ford, GM, and Chrysler.
Most diesel diagnostics are completed the same day. Depending on the issue, we can often provide a full estimate within a few hours of drop-off. We offer coded drop-off boxes for after-hours convenience.
Yes, FloState accepts most extended warranties. We also offer flexible financing through Synchrony, Affirm, and Klarna so you can get your diesel repaired without financial stress.
Don’t let diesel engine problems leave you stranded on the side of the road. Trust the experts at FloState Auto Diesel Repair for reliable diesel repair services. Contact us today at (407) 498-4204 to schedule an appointment or visit us at 1396 Hamlin Avenue, St. Cloud, FL 34771 and let us be your diesel repair shop!