Diesel Transmission Repair Services in Leesburg, FL

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A healthy transmission is essential for keeping your diesel truck running smoothly and efficiently. At DMR Diesel Repair in Leesburg, FL, we are committed to quality, exceptional customer service, and pride in our work—ensuring that every transmission repair meets the highest standards. We provide comprehensive transmission services to address shifting issues, fluid leaks, and overall performance problems. Whether your truck needs minor repairs, fluid service, or a full transmission replacement, our expert technicians use precision craftsmanship and high-quality parts, so nothing leaves our shop that we wouldn’t trust for our own family.

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Tailored Transmission Services for Diesel Trucks


At DMR Diesel Repair, we specialize in diesel transmission repairs and maintenance for light-duty and Super Duty diesel trucks.

  • Transmission Repairs

    Transmission problems can cause rough shifting, slipping gears, and poor power transfer, leading to reduced efficiency and drivability. Our technicians thoroughly diagnose the issue and repair worn-out solenoids, valve bodies, and clutch packs, ensuring smooth shifting and optimal performance.

  • Transmission Replacements

    Transmission Repairs

    Transmission Replacements

    If your transmission is beyond repair, we provide complete replacements using high-quality, reliable units designed for your truck’s specific make and model. Our precise installation process and thorough post-installation testing ensure long-term durability and trouble-free operation.

  • Clutch & Torque Converter Services

    Transmission Repairs

    Transmission Replacements

    Clutch & Torque Converter Services

    A well-functioning clutch and torque converter are essential for efficient power transfer in diesel trucks. Our services include:


    • Clutch replacements, including plates, pressure plates, and flywheels
    • Torque converter diagnostics and repairs to restore smooth engagement
    • Replacing worn-out components to improve performance

    These services eliminate slipping, enhance shifting precision, and restore full power delivery to your truck.

  • Transmission Fluid Service

    Over time, contaminated or degraded transmission fluid can cause overheating, poor shifting, and premature wear. We provide:


    • Transmission fluid flushes to remove debris and contaminants
    • High-quality fluid replacement to enhance lubrication and prevent overheating
    • Filter changes to maintain smooth operation and protect internal components

    Routine fluid maintenance extends transmission life, prevents costly breakdowns, and keeps your truck shifting smoothly

  • Diagnostic & Preventative Maintenance

    Catching transmission problems early can save thousands in repairs and extend your truck’s lifespan. Using Autel and Snap-On diagnostic tools, we offer:


    • Transmission error code scans to detect potential issues before they worsen
    • Leak detection and component inspections to prevent unexpected failures
    • Preventative maintenance services tailored to your truck’s specific needs

    Regular check-ups ensure your transmission remains in peak condition, reducing downtime and avoiding major failures.

  • Drivetrain Inspection & Services

    Your drivetrain and transmission work together to transfer power efficiently. We inspect and service:


    • Differentials to ensure smooth and balanced power distribution
    • Driveshafts to maintain proper alignment and function
    • U-joints and seals to prevent excessive wear and drivetrain damage

    These services help prevent excessive wear, vibrations, and drivetrain failure.

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Prevent Costly Transmission Breakdowns


Ignoring transmission problems can lead to:


  • Expensive Repairs: Small issues like low fluid or worn-out seals can escalate into major transmission failure.
  • Reduced Performance: Slipping gears and rough shifting affect fuel efficiency and towing power.
  • Safety Hazards: A failing transmission can cause sudden loss of power, putting you and your cargo at risk.

Early diesel transmission diagnostics and diesel truck maintenance prevent costly breakdowns and keep your truck road-ready.

Common Diesel Truck Transmission Problems We Fix


Even heavy-duty transmissions wear over time. At DMR Diesel Repair, we commonly repair:


  • Slipping Gears: Caused by worn-out components or low fluid levels.
  • Delayed or Hard Shifting: Often linked to faulty solenoids, sensors, or clogged filters.
  • Unusual Noises: Grinding, clunking, or whining sounds indicate internal transmission damage.
  • Leaking Fluid: A transmission leak can cause overheating and severe wear.
  • Overheating Issues: Excess heat breaks down fluid and damages transmission components.
  • Dashboard Warning Lights: Transmission error codes require immediate diagnostics and repairs.



If you notice any of these signs, don’t wait—schedule a diagnostic before it turns into a major problem.

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DMR Diesel Repair: Your Diesel Transmission Specialists


Truck owners and fleet managers in Leesburg, FL, rely on DMR Diesel Repair for expert transmission repairs and maintenance because we offer:

Specialized Diesel Transmission Technicians

Our team takes care of transmission diagnostics, repairs, and replacements for Cummins, Duramax, and Powerstroke diesel trucks, ensuring your drivetrain can handle the power and workload your truck demands.

High-Quality Parts & Fluids

We use OEM-grade components and manufacturer-recommended transmission fluids to maximize durability and performance.

Advanced Diagnostic Equipment

With Autel and Snap-On scan tools, we perform accurate troubleshooting and in-depth transmission assessments to pinpoint issues before they escalate.

Dependable Warranty Coverage

Our transmission services come with a 2-year/24,000-mile warranty, providing confidence and protection for your repair investment.

Hassle-Free Service Experience

We offer key drop, early bird drop-off, digital vehicle inspections (DVIs), and online scheduling, making transmission repairs and maintenance simple and convenient.

Call Now for Diesel Transmission Service in Leesburg, FL

Don’t let transmission problems slow you down—trust DMR Diesel Repair for expert repairs and maintenance. We proudly serve Leesburg, Lake County, Sumter County, Marion County, and surrounding areas, including Tavares and Bushnell.


Call Us Today: (352) 663-8010

Visit Us: 1407 Colfax St, Leesburg, FL 34748.


Get professional transmission care to keep your diesel truck performing at its best—schedule your service today! DMR Diesel Repair – Your One-Stop Diesel Shop!

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