TRANSMISSION SERVICE
ATRA certified transmission service from Sonoma County's transmission specialist. Expert diagnostics, fluid service, and rebuilds for all makes and models, Monday through Friday with same day service available.
✓ SAME DAY SERVICE AVAILABLE
CALL FOR SERVICE: (707) 584-7727Professional Transmission Service in Rohnert Park, CA
Need a transmission specialist you can trust? Your vehicle's transmission is one of its most complex and vital components, and at Rohnert Park Transmission & Auto Repair we treat it that way. As Sonoma County's ATRA certified transmission specialist, we deliver the same standard of work whether the job is a fluid service, a torque-converter replacement, or a full rebuild. Open Monday through Friday with extended hours, we're the transmission shop in Sonoma County that offers same day service for most repairs.
Our expert technicians use advanced diagnostic equipment to accurately identify transmission issues before they become major problems. Whether you're experiencing slipping gears, delayed engagement, fluid leaks, or unusual noises, we have the expertise to diagnose and resolve the issue quickly and effectively.
We offer the full range of transmission services: scheduled fluid changes, filter replacements, valve-body work, complete rebuilds, and clutch repairs for manual transmissions. Our preventive maintenance program can extend the life of your transmission and help you avoid the major repairs that come from neglect. We service all makes and models — domestic, Asian, and European — and we'll always explain what your vehicle actually needs before any work begins.
When you choose Rohnert Park Transmission for your transmission service, you're choosing the most trusted transmission repair shop in Sonoma County, with nearly three decades of experience. As one of the few ATRA certified transmission specialists in the region, we're conveniently accessible from Rohnert Park, Petaluma, Santa Rosa, Cotati, Sebastopol, Windsor, and surrounding communities. We use only high-quality parts and fluids that meet or exceed manufacturer specifications, backed by our ATRA nationwide warranty.
Why Choose Our Transmission Service?
- ✓ATRA certified transmission rebuilds and repairs
- ✓ATRA nationwide warranty coverage
- ✓Same day service available for most repairs
- ✓Extended hours Mon-Thu 7:30am-5pm, Fri 7am-4pm
- ✓Diagnostic-first — we explain what's needed before any work begins
- ✓Transmission inspection included with every service
- ✓All makes and models serviced — domestic, Asian, and European
- ✓Specialty in CVT, automatic, and manual transmissions
- ✓27+ years serving Sonoma County since 1997
- ✓BBB A+ rated with 201 five-star Google reviews
Vehicle-Specific Repair Guides
Ready to Get Your Transmission Service Done?
Don't wait until small issues become major problems. Our expert technicians are ready to help keep your vehicle running smoothly.
Special Offers:
- • 10% Student Discount with Valid ID
- • Senior Citizen Discounts Available
- • Military & First Responder Discounts
- • Same Day Service Available
- • Extended Hours Monday-Friday
Frequently Asked Questions About Transmission Service
How often should I service my transmission?
Most manufacturers recommend transmission fluid changes every 30,000-60,000 miles for automatic transmissions and 30,000-50,000 miles for manual transmissions. However, if you do a lot of stop-and-go driving, towing, or drive in extreme temperatures, more frequent service may be needed. Our technicians can recommend the right service interval for your vehicle and driving conditions.
What's included in a transmission service?
A complete transmission service includes draining and replacing the transmission fluid, replacing the filter (if applicable), inspecting the pan for debris or metal particles, checking for leaks, and a road test to ensure proper operation. We also perform a visual inspection of all transmission components and provide honest recommendations.
What causes transmission fluid to turn brown or smell burnt?
Burnt or discolored transmission fluid is typically caused by overheating, which breaks down the fluid's properties. This can happen from heavy towing, stop-and-go traffic, or low fluid levels. Brown or burnt-smelling fluid should be addressed promptly as it indicates the fluid is no longer protecting your transmission properly.
Can I extend my transmission's life with regular service?
Absolutely! Regular transmission service is one of the best ways to extend transmission life. Fresh fluid provides better lubrication, cooling, and cleaning of internal components. Many transmission failures could have been prevented with proper maintenance. Regular service is far less expensive than major transmission repairs.
Do you service CVT transmissions?
Yes, our ATRA certified technicians are trained to service all transmission types including CVT (Continuously Variable Transmissions). CVTs require special fluid and service procedures. We service CVTs from Nissan, Honda, Toyota, Subaru, and all other manufacturers.
What's the difference between a transmission flush and a fluid change?
A fluid change (also called drain and fill) replaces only the fluid in the pan, typically 40-50% of total fluid. A transmission flush uses a machine to push out nearly all old fluid and replace it with new fluid. We generally recommend drain and fill for regular maintenance. Flushes can sometimes dislodge debris in older, poorly maintained transmissions, so our ATRA certified technicians will advise on the best option for your vehicle's condition.
Why is my transmission slipping?
Transmission slipping can be caused by low or degraded fluid, worn clutch packs, failing solenoids, or internal wear. Symptoms include delayed engagement, high RPMs without acceleration, or the transmission popping out of gear. Don't ignore slipping - early diagnosis often allows for repairs that are far less expensive than a full rebuild. Call (707) 584-7727 to schedule a diagnostic inspection.
Do you offer a warranty on transmission repairs?
Yes! We stand behind our work with comprehensive warranty coverage. Our transmission repairs come with a nationwide warranty through our ATRA membership, so you're covered even if you're traveling. Warranty terms vary by service type - ask our service advisors for specific coverage details on your repair.
How long does a transmission service take?
A standard transmission fluid change takes about 45 minutes to an hour. More comprehensive services like a pan drop with filter replacement take 1-2 hours. We offer same-day service for most transmission maintenance. For transmission repairs or rebuilds, we'll provide an accurate timeline after diagnosis - typically 2-5 days depending on parts availability.
What are signs my transmission needs service or repair?
Watch for these warning signs: delayed or harsh shifting, slipping between gears, grinding or shaking during gear changes, burning smell from transmission area, check engine or transmission warning light, fluid leaks (red or brown fluid under vehicle), whining or humming noises, and transmission won't engage into gear. If you notice any of these symptoms, schedule an inspection promptly to prevent more costly damage.
Have more questions? We're here to help!
Call (707) 584-7727Get In Touch
Related Services
Serving Nearby Cities
We proudly serve customers from throughout Sonoma County
Our Certification
ATRA & ASE Certified for Expert Transmission Service
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Watch: Why Transmission Service Matters
Fernando Gomez, the owner of Rohnert Park Transmission & Auto Repair (28+ years in the shop), walks through what transmission service actually is, when to do it, and what determines the cost.