Engine & Transmission

Expert Diesel Engine & Transmission Services You Can Trust

For the big jobs, take your diesel truck to RG Diesel LLC! Our expert services are ideal whether you have a late-model import or a newer domestic diesel truck. And because we guarantee the work we perform, you can rest assured you are receiving the highest quality engine overhaul and replacement services, as well as complex transmission repair, in the East Tennessee area.

Heavy Duty Services

Authorized Jasper Dealer

If you encounter major issues like a large oil slick or strange noises from your diesel engine, you don't necessarily need a new vehicle. As an Authorized JASPER Dealer, your trusted installer at RG Diesel, LLC can quickly drop in a completely remanufactured JASPER diesel engine, transmission, or differential, proudly remanufactured in the U.S.A., to get your truck back on the road.

Cylinder Block

The cylinder block is the powerhouse of the motor, housing the cylinders and their components inside a lubricated and cooled crankcase. Although designed to be extremely strong and sturdy, the block is susceptible to failure resulting from cracked blocks, porous blocks, or core/freeze plug failure, any of which can prevent your diesel vehicle from starting.

Cylinder Head

The cylinder head sits above the cylinder block, closing the top of the cylinder to form the combustion chamber and coordinating airflow in and out of the engine. Since the cylinder head's chief function is to properly seal the cylinders, issues resulting in insufficient compression will make the diesel vehicle difficult to drive, requiring specialized repair and reconditioning.

Diesel

Although diesel engines don't require tune-ups and tend to last longer than gasoline engines, they absolutely require regular maintenance to ensure longevity. Typical maintenance tasks include regularly changing the oil, air filter, and fuel filter, bleeding the fuel system, draining the water separators, and refilling the Urea injection system, all of which you can count on the experts at RG Diesel, LLC to perform.

Engine Maintenance

Any part manufacturer will confirm that preventative maintenance is critical to a part's lifespan, and although diesel engines are built to last, regular care is essential to increase their longevity. The easiest way to maintain peak performance and fuel economy in your diesel truck is to provide regular, specialized engine maintenance tailored to its specific heavy-duty requirements.

Engine Repair

When your diesel vehicle shows any sign of trouble, bring it to RG Diesel LLC for full-service engine repair in Greeneville, TN. Our expert auto mechanics are ready to help you with everything from diagnostic check engine light repair to precision part repair on complex diesel engine components.

Engine Repair and Rebuild

After years of heavy-duty use, your diesel engine inevitably deteriorates, and if you need a new engine but are not ready to invest in a new truck, considering a full engine rebuild is an excellent option. This process involves replacing or resurfacing all the rundown parts in the engine, and regardless of your needs, RG Diesel, LLC has experienced diesel engine rebuilders ready to assist you.

Engine Replacement

The engine converts energy into useful mechanical motion, and while generally reliable, a diesel engine is susceptible to damage and breakdown due to the high stress of its operation. When this happens, the most reliable course of action is an engine replacement, and you can bring your vehicle to RG Diesel, LLC, for high-quality diesel engine replacement services.

Timing Belt

A timing belt, or metal timing chain, is a crucial part of your diesel engine that synchronizes the camshaft and the crankshaft rotation to ensure the engine valves open and close at the correct timings. In an interference engine, the belt also prevents the piston from striking the valves; because failure is catastrophic in these engines, having your diesel vehicle's timing belt or chain checked regularly is essential.

Transmission Flush

Although most manufacturers recommend a transmission flush every 30,000 miles or two years, symptoms such as grinding, slipping gears, problems shifting, or surging may indicate your diesel transmission needs a flush sooner. Flushing the used fluid washes away tiny particles of dirt, clutch material, and metal shavings, ensuring the long-term health of your transmission.

Transmission Maintenance

Preventative maintenance is critical to increasing the lifespan of your heavy-duty diesel transmission, which works harder than standard transmissions. The easiest way to maintain peak performance and fuel economy is to provide regular, specialized transmission maintenance for your vehicle, and you can visit the experts at RG Diesel, LLC to have this service performed.

Transmission Repair

Our comprehensive services include transmission repair on both manual and automatic diesel transmissions. The first step is assessing your transmission to accurately determine the source of the problem, which in some cases, can be fixed simply with adjustments, replacing external seals, or replacing easily accessible parts.

Transmission Replacement

The transmission, or gearbox, uses gears and gear trains to transmit speed and torque from the diesel engine to the wheels. When replacement is necessary, you can have your transmission replaced with a new, rebuilt, remanufactured, repaired, or used unit, and the experienced service technicians at RG Diesel, LLC can help you make the best decision for your heavy-duty vehicle and your wallet.

Top Diesel Mechanics in Greeneville

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(423) 823-9987