Transmission Repair in Santa Rosa, CA

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Expert Transmission Repair in Santa Rosa, CA

Your transmission is one of the most critical systems in your vehicle, responsible for transferring engine power to the wheels and keeping your car moving smoothly in every condition. At Transco Auto & Diesel Repair, we have been providing dependable transmission repair to drivers in Santa Rosa, CA and throughout Sonoma County for over 60 years. Whether you drive a car, truck, or SUV with an automatic, manual, or semi-automatic transmission, our ATRA-certified technicians have the training and equipment to diagnose and repair transmission problems with precision. From slipping gears and delayed shifting to fluid leaks and complete rebuilds, we handle it all with the expertise your vehicle deserves. We back our work with warranty-backed services and are proud to be a NAPA AutoCare Center, which means you can trust us to get the job done right.

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The Importance of Transmission Repair in Santa Rosa, CA

The transmission is the link between your engine and your wheels, and when it begins to fail, it affects everything from fuel efficiency to your ability to control the vehicle safely. Ignoring early warning signs like rough shifting, hesitation, unusual noises, or a burning smell can lead to far more extensive and costly damage over time. Drivers in Santa Rosa, CA who address transmission issues early protect themselves from breakdowns and avoid the expense of full transmission replacement. Routine transmission service, including fluid checks and filter changes, is one of the most effective ways to extend the life of this complex system.


At Transco Auto & Diesel Repair, we understand that transmission problems can be stressful and disruptive to your daily routine. That is why we prioritize thorough diagnostics before recommending any repair. Our technicians use industry-leading tools to accurately identify the root cause of your transmission issues, and we communicate our findings clearly so you can make informed decisions. As an ATRA-certified shop and NAPA AutoCare Center serving Santa Rosa, CA and surrounding Sonoma County communities, we hold ourselves to the highest standards of quality and transparency. Financing is available through the NAPA Credit Card and Synchrony Car Care Credit Card to help make the cost of transmission repair manageable, so you never have to put off a repair your vehicle needs.

Why Choose Transco Auto & Diesel Repair for Transmission Repair in Santa Rosa, CA

When it comes to transmission repair in Santa Rosa, CA, Transco Auto & Diesel Repair stands apart through decades of hands-on experience, honest service, and a commitment to getting your vehicle back on the road right the first time. Our ATRA-certified technicians bring specialized expertise to every transmission job, whether it is a routine fluid service or a complex rebuild. We treat every customer like a neighbor and take the time to explain your repair options clearly without pressure or unnecessary upselling. Our shop is a NAPA AutoCare Center, and all qualifying repairs are backed by warranty-backed services for your peace of mind.


Our process begins with a comprehensive diagnostic inspection to pinpoint the exact cause of your transmission issue. We review our findings with you before any work begins, giving you a clear picture of what needs to be done and why. Once approved, our technicians perform all repairs using quality parts that meet or exceed manufacturer specifications. After the repair is complete, we perform a final inspection and road test to ensure everything is functioning properly before returning your vehicle. With 24-hour key drop-off and complimentary pick-up and drop-off within 7 miles of our shop, we make the entire process as convenient as possible for drivers throughout Santa Rosa, CA.


Key Benefits:

  • ATRA-certified transmission technicians
  • Comprehensive diagnostic process before any repair
  • Quality parts meeting or exceeding manufacturer specs
  • Warranty-backed services on qualifying repairs
  • NAPA Credit Card financing available — 6-month promotional financing on purchases of $199 or more
  • Extend NAPA Peace of Mind Warranty to 36 months/36,000 miles with NAPA Credit Card
  • 24-hour key drop-off
  • Complimentary pick-up and drop-off within 7 miles
  • NAPA AutoCare Center
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Transmission Repair Near Me in Santa Rosa, CA

If you have been searching for reliable transmission repair near you in Santa Rosa, CA, look no further than Transco Auto & Diesel Repair. Conveniently located on Santa Rosa Ave, our shop is easy to reach for drivers throughout Sonoma County, including those coming from Sebastopol, Rohnert Park, Cotati, Windsor, Petaluma, and surrounding communities. We have spent over 60 years building trust with local families, and our reputation for honest, high-quality transmission service speaks for itself. Whether you are dealing with an urgent transmission problem or looking to schedule routine service, our team is ready to help.


Booking your transmission repair appointment at Transco Auto & Diesel Repair is simple and convenient. Visit our website to schedule your service online at a time that works for you. We also offer 24-hour key drop-off for added flexibility, and our complimentary pick-up and drop-off service within a 7-mile radius of the shop ensures that getting your transmission repaired never has to disrupt your day. Trust the team that Santa Rosa, CA has counted on for generations — book your appointment online today and experience the Transco Auto & Diesel Repair difference.

Services We Offer in Santa Rosa, CA

Everything your vehicle needs — under one roof

Transmission Repair

Your transmission is the link between your engine and your wheels, and keeping it in top condition is essential for reliable performance. Our ATRA-certified technicians diagnose and repair transmission issues on automatic, manual, and semi-automatic vehicles with precision you can trust.

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Diesel Repair

Diesel engines require specialized knowledge and equipment to service properly. Our experienced technicians handle everything from fuel injectors, turbo chargers, air breaks, pneumatics, preventive maintenance, and diagnostics, keeping your diesel-powered vehicle running at its best.

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Diesel Repair

Diesel engines require specialized knowledge and equipment to service properly. Our experienced technicians handle everything from glow plug replacement and fuel injector service to full diesel diagnostics, keeping your diesel-powered vehicle running at its best.

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Providing Expert Car Repair and Maintenance in Santa Rosa, CA and the Nearby Areas

Located in the heart of Santa Rosa, CA, Transco Auto & Diesel Repair has been a trusted name in automotive service for over 60 years. Our shop on Santa Rosa Ave is easy to find and convenient to reach for drivers throughout Sonoma County and the surrounding region. Whether you need transmission repair, diesel service, engine work, or routine preventive maintenance, our ASE-certified technicians are ready to help you get back on the road with confidence. We proudly serve generations of families who have counted on us for honest, reliable repairs.


At Transco Auto & Diesel Repair, we make every visit as hassle-free as possible. We offer 24-hour key drop-off so you can bring your vehicle in on your schedule, and our complimentary pick-up and drop-off service within a 7-mile radius of the shop means you never have to worry about a ride. As a NAPA AutoCare Center, ATRA-certified shop, and AAA Approved Auto Repair facility, we hold ourselves to the highest standards in the industry. Drivers from across Sonoma County and beyond trust us to deliver quality workmanship and straightforward service every time.

  • Bodega Bay
  • Boyes Hot Springs
  • Cloverdale
  • Cotati
  • El Verano
  • Forestville
  • Fulton
  • Graton
  • Guerneville
  • Healdsburg
  • Kenwood
  • Larkfield-Wikiup
  • Monte Rio
  • Occidental
  • Petaluma
  • Rohnert Park