Expert Transmission Care
Professional maintenance, evaluation, and repair for automatic and manual transmissions.
Transmission Service & Repair
Your transmission is one of the most complex and expensive components in your vehicle. We provide seasoned transmission maintenances, from routine fluid changes to diagnosing and fixing shifting problems. For automatic transmissions, we perform fluid and filter changes using high-grade fluids that meet your manufacturer's specifications. For manual transmissions, we maintenance the gear oil. Proper maintenance is key to preventing overheating and internal wear, which can lead to catastrophic failure and a very costly rebuild.

Diagnosing Transmission Issues
Transmission problems can manifest as slipping, harsh shifting, delayed engagement, or unusual noises. Our diagnostic process involves checking fluid level and condition, scanning for computer codes, and conducting road tests to experience the issue firsthand. We may also perform pressure tests to evaluate the hydraulic system. This methodical approach allows us to determine if the problem can be fixed with an external fix (like a solenoid or sensor) or if internal work is required. We provide honest, upfront advice.
Fluid Service: The Best Prevention
Heat is the enemy of transmission fluid. Over time, fluid breaks down, losing its lubricating properties and its ability to transfer hydraulic pressure effectively. This leads to increased wear on clutches, bands, and bearings. A fluid and filter change removes abrasive metal particles and sludge, restoring proper operation and cooling. While not every transmission requires a flush, most benefit greatly from regular fluid maintenance. Consult with our Novato technicians on the best maintenance plan for your transmission.
Services We Offer
Transmission Service for All Vehicles
Smooth, Reliable Shifting
The critical role of fluid care in preventing major transmission failure.
Leonardi Automotive
7426 Redwood Boulevard, Novato, California 94945, USA