Auto Repair in Rohnert Park & Sonoma County
Rohnert Park Transmission & Auto Repair is a full-service, ASE and ATRA certified auto repair shop serving Sonoma County since 1997. From routine oil changes to complex engine and transmission work, our team handles it all with same-day service available.
Complete Auto Repair in Rohnert Park
Rohnert Park Transmission & Auto Repair is your one-stop shop for every automotive repair and maintenance need. Our ASE and ATRA certified technicians bring over 28 years of hands-on experience to every vehicle that comes through our doors. Whether you need a routine oil change, a complex engine diagnosis, a full transmission rebuild, or anything in between, we have the expertise, equipment, and parts to get the job done right the first time.
Unlike chain shops that specialize in quick services or dealers that charge premium rates, we combine the technical skill of a specialty shop with the comprehensive service menu of a full auto repair center. Every repair starts with a thorough diagnosis using professional-grade scan tools, visual inspection, and road testing when needed. We explain what we find in plain language, provide a written estimate before any work begins, and never upsell services you do not need.
Our family-owned shop has earned a 4.8-star rating from 192 customers because we treat every vehicle like our own. We service all makes and models including Ford, Chevrolet, Honda, Toyota, Nissan, Subaru, BMW, Mercedes-Benz, Audi, Hyundai, Kia, and every other brand on the road. From daily commuters to work trucks, classic cars to the latest models, our technicians have the training to handle it all.
Conveniently located at 305 Laguna Dr in Rohnert Park, just off Highway 101, we serve drivers from across Sonoma County and the North Bay. We offer same-day service for most repairs, early bird drop-off, and student, senior, and military discounts. Call (707) 584-7727 to schedule your service today.
Engine Repair & Diagnostics
Your engine is the heart of your vehicle, and when something goes wrong, you need a shop with the diagnostic skill to pinpoint the exact problem. Our ASE certified technicians use advanced OBD-II scan tools, fuel pressure testing, compression analysis, and oscilloscope diagnostics to identify engine issues accurately. From a simple check engine light to complex internal engine problems, we diagnose the root cause before recommending any repairs.
Our engine repair services include head gasket replacement, timing belt and timing chain service, valve cover gasket repair, intake manifold gasket replacement, fuel system diagnostics and repair, ignition system service, and complete engine rebuilds when needed. We also perform engine tune-ups, spark plug replacement, and emissions-related repairs to keep your vehicle running efficiently and passing California smog inspections.
If your vehicle is running rough, losing power, overheating, or showing a warning light, do not wait for a small issue to become a major repair. Our engine repair hub has detailed information about all of our engine services.
Brake Service & Repair
Your brakes are the most critical safety system on your vehicle. When brake pads wear thin, rotors warp, or brake fluid degrades, your stopping power is compromised. Our technicians perform complete brake inspections that check pad thickness, rotor condition, caliper operation, brake lines and hoses, brake fluid condition, and the parking brake mechanism. We catch problems before they become dangerous.
Our brake services include brake pad replacement, rotor resurfacing and replacement, caliper rebuild and replacement, brake line repair, brake fluid flush, ABS diagnostics, and complete brake system overhauls. We use premium brake components that meet or exceed OEM specifications for reliable stopping power in all conditions, from Sonoma County's mountain roads to Highway 101 commuting.
Hearing squealing, grinding, or pulsation when you brake? Visit our brake service hub for detailed information, or read our brake warning signs guide to learn when your brakes need attention.
Transmission Repair & Rebuild
Transmission work is our specialty and the foundation our shop was built on. As an ATRA certified transmission center, we bring expertise that general repair shops simply cannot match. Our technicians diagnose and repair automatic, manual, and CVT transmissions for all vehicle makes and models using advanced scanning tools, fluid analysis, and comprehensive road testing.
From simple fluid changes and solenoid replacements to complete transmission rebuilds, we handle every level of transmission repair. Our ATRA membership provides nationwide warranty coverage on transmission work, so you are protected wherever you travel. We are also CVT transmission specialists with specific expertise in Nissan, Honda, Toyota, and Subaru CVT systems.
Experiencing delayed shifting, slipping, grinding, or a transmission shudder? Visit our transmission repair hub for comprehensive information about all our transmission services, or read about 5 critical transmission warning signs.
Electrical System & Diagnostics
Modern vehicles rely on complex electrical systems to control everything from engine management and transmission shifting to safety features and comfort systems. When electrical problems occur, symptoms can range from a dead battery and no-start condition to intermittent warning lights, power window failures, and erratic gauge readings. Our technicians use professional electrical diagnostic equipment including multimeters, oscilloscopes, and factory-level scan tools to trace electrical faults to their source.
Our electrical services include battery testing and replacement, alternator diagnosis and replacement, starter motor service, wiring harness repair, fuse and relay diagnostics, lighting system repair, power window and lock service, and complete electrical system troubleshooting. We handle everything from simple bulb replacements to complex wiring repairs that other shops may struggle with.
Visit our electrical repair hub for detailed information on all our electrical and diagnostic services, or read our alternator failure signs guide to learn what to watch for.
Steering & Suspension Service
Your steering and suspension system determines how your vehicle handles, rides, and stops. Worn shocks and struts reduce braking effectiveness, increase tire wear, and make your vehicle harder to control in emergency maneuvers. Failing ball joints, tie rods, and control arm bushings cause wandering, pulling, and uneven tire wear that gets worse over time. Sonoma County's roads, from the winding curves of Highway 12 to the potholes on local streets, take a toll on suspension components.
Our steering and suspension services include shock and strut replacement, ball joint service, tie rod end replacement, control arm and bushing service, sway bar link replacement, power steering pump and rack repair, wheel alignment, and complete suspension overhauls. We diagnose the root cause of pulling, vibration, noise, and uneven tire wear to address the actual problem rather than just replacing parts.
If your vehicle is pulling to one side, bouncing excessively, or making clunking noises over bumps, visit our steering and suspension hub to learn more about our services, or read our guide to how Sonoma County roads affect your alignment.
Heating & AC Service
Sonoma County temperatures can swing from freezing winter mornings to triple-digit summer afternoons, making a properly functioning climate control system essential for comfort and safety. Our technicians diagnose and repair both heating and air conditioning systems using professional refrigerant recovery and recharging equipment, electronic leak detection, and thorough system performance testing.
Our heating and AC services include AC recharge and performance testing, compressor diagnosis and replacement, condenser and evaporator service, expansion valve and orifice tube replacement, heater core repair and replacement, blower motor service, climate control actuator diagnosis, and refrigerant leak detection and repair. Whether your AC is not blowing cold air or your heater is not producing heat, we have the diagnostic tools and expertise to restore your comfort.
Visit our heating and AC hub for detailed information on all our climate control services.
Oil Change & Preventive Maintenance
Regular oil changes are the single most important thing you can do to extend your engine's life. Fresh oil lubricates moving parts, reduces friction and heat, and carries away contaminants that would otherwise cause internal wear. At Rohnert Park Transmission, every oil change includes a multi-point vehicle inspection covering fluid levels, belt and hose condition, tire pressure and tread depth, battery health, and a visual check of brake components, suspension, and exhaust.
We offer conventional, synthetic blend, and full synthetic oil changes using manufacturer-recommended oil grades. Our technicians can advise you on the right oil change interval for your vehicle and driving conditions. Most modern vehicles using synthetic oil can go 5,000 to 7,500 miles between changes, while older vehicles or those driven in severe conditions may benefit from more frequent service.
Beyond oil changes, our preventive maintenance services include transmission fluid changes, coolant flush, brake fluid flush, power steering fluid service, differential fluid change, air filter and cabin filter replacement, spark plug replacement, and factory-scheduled maintenance at every mileage interval. Keeping up with maintenance prevents costly repairs and keeps your vehicle reliable for years to come.
Tire Services
Your tires are the only point of contact between your vehicle and the road, making proper tire maintenance essential for safety, handling, and fuel economy. Our tire services help you get the maximum life from your tires while maintaining safe traction in all driving conditions. We perform tire rotations, wheel balancing, flat tire repair, TPMS (tire pressure monitoring system) diagnostics and service, and tire pressure adjustments.
Regular tire rotations every 5,000 to 8,000 miles promote even tread wear across all four tires, extending their useful life by thousands of miles. Wheel balancing eliminates vibrations caused by uneven weight distribution and prevents premature tire and suspension wear. Our technicians also inspect tires for signs of alignment problems, suspension wear, or improper inflation that could affect tire life and vehicle safety.
If you are experiencing vibration at highway speed, uneven tire wear, or a TPMS warning light, bring your vehicle in for a tire inspection. We will identify the cause and recommend the most cost-effective solution to keep you safe on the road.
Auto Repair Service Areas
We provide expert auto repair to drivers throughout Sonoma County and the North Bay. Our shop at 305 Laguna Dr in Rohnert Park is centrally located off Highway 101 for easy access from all surrounding cities.
Auto Repair Guides & Resources
Why Car Repairs Cost More in 2025
Understanding rising auto repair costs and how to save money on car maintenance in Sonoma County.
5 Critical Transmission Warning Signs
The five warning signs every driver should recognize to catch transmission problems early and avoid costly repairs.
Brake Warning Signs Safety Guide
How to recognize when your brakes need service and what happens if you ignore the warning signs.
Car Maintenance Guide for Sonoma County
Complete maintenance guide tailored for local driving conditions and Sonoma County roads.
Car AC Not Blowing Cold Air
Diagnosis and repair guide for air conditioning problems, common causes, and what to expect for repair costs.
Alternator Failure Signs Guide
How to spot the warning signs of alternator failure before you end up stranded with a dead battery.
Why Choose Rohnert Park Transmission & Auto Repair
ASE & ATRA Certified
Dual-certified technicians meeting the highest standards in both general auto repair and transmission service. No other shop in Rohnert Park holds both certifications.
Family-Owned Since 1997
Over 28 years serving Rohnert Park and Sonoma County. We treat every customer like a neighbor because you are one. Our reputation is built on honest work and fair prices.
4.8 Stars, 192 Reviews
Our customers rate us 4.8 out of 5 because we provide honest assessments, transparent pricing, and quality work that lasts. Read our reviews to see why.
What Sets Us Apart
We diagnose the actual problem and explain it in plain language. No unnecessary repairs, no upselling.
Written estimates before work begins. No surprise charges. You approve every repair before we start.
Domestic, Asian, and European vehicles. From daily commuters to work trucks, classic cars to new models.
Every repair backed by warranty. ATRA nationwide warranty on transmission work. Quality parts that last.
Most repairs completed same day. Early bird drop-off available. We respect your time.
10% student discount with valid ID. Senior and military discounts. Competitive pricing on every service.
Certifications & Affiliations
Frequently Asked Questions About Auto Repair
What auto repair services do you offer?
We offer complete auto repair services including engine repair and diagnostics, brake service, transmission repair and rebuild, electrical system repair, steering and suspension work, heating and AC service, oil changes, tire services, and pre-purchase inspections. Our ASE and ATRA certified technicians work on all makes and models at our Rohnert Park shop.
How much does auto repair cost in Rohnert Park?
Auto repair costs vary depending on the service needed and your vehicle. Oil changes start around $40 to $80. Brake pad replacement ranges from $150 to $350 per axle. Engine diagnostics typically run $100 to $150. We provide transparent, written estimates before starting any work so there are no surprises. Call (707) 584-7727 for a quote specific to your vehicle.
Do you offer same-day auto repair service?
Yes. We offer same-day service for most repairs including oil changes, brake service, diagnostics, battery replacement, and many common repairs. More complex work like transmission rebuilds or engine repair may take 2 to 5 business days. We provide accurate timelines after diagnosis and keep you updated throughout the process.
What certifications do your mechanics have?
Our technicians hold ASE (Automotive Service Excellence) certification for general auto repair and ATRA (Automatic Transmission Rebuilders Association) certification for transmission work. We are also BBB A+ accredited, RepairPal Certified, and an AMRA MAP Participating Facility. These certifications represent the highest standards in the automotive repair industry.
Do you work on all makes and models?
Yes. Our ASE certified technicians service all domestic and import vehicles including Ford, Chevrolet, GMC, Dodge, Ram, Honda, Toyota, Nissan, Subaru, Mazda, Hyundai, Kia, BMW, Mercedes-Benz, Audi, Volkswagen, Lexus, Infiniti, Acura, and more. We have the diagnostic equipment and expertise to handle any vehicle.
How often should I get my car serviced?
Regular maintenance intervals depend on your vehicle and driving conditions. General guidelines include oil changes every 3,000 to 7,500 miles depending on oil type, tire rotations every 5,000 to 8,000 miles, brake inspections every 12,000 miles, transmission fluid changes every 30,000 to 60,000 miles, and a comprehensive inspection annually. Vehicles driven on Sonoma County mountain roads or in stop-and-go traffic may need more frequent service.
Do you offer a warranty on auto repairs?
Yes. We stand behind every repair with warranty coverage. As an ATRA member, our transmission repairs carry a nationwide warranty. Warranty terms vary by service type and parts used. We use OEM-equivalent or better parts to ensure long-lasting repairs. Ask our service advisors for specific warranty details for your repair.
What areas do you serve for auto repair?
Our shop at 305 Laguna Dr in Rohnert Park serves all of Sonoma County and the North Bay including Santa Rosa, Petaluma, Cotati, Sebastopol, Windsor, Healdsburg, Sonoma, Novato, San Rafael, Napa, Cloverdale, Guerneville, Bodega Bay, and surrounding communities. We are conveniently located just off Highway 101.
What is the difference between a mechanic and an auto repair shop?
A mechanic is an individual technician while an auto repair shop is a full-service facility with multiple technicians, professional diagnostic equipment, parts inventory, and business infrastructure including warranties and insurance. Our shop combines ASE certified mechanics with ATRA transmission specialists, professional-grade scan tools, and a fully equipped service bay to handle everything from oil changes to engine rebuilds under one roof.
How do I know if my car needs repair or just maintenance?
Maintenance is scheduled preventive work like oil changes, fluid flushes, and inspections that keeps your car running well. Repair is corrective work needed when something breaks or wears out, like brake pad replacement, engine diagnostics, or transmission repair. Warning signs that your car needs repair include unusual noises, warning lights on the dashboard, fluid leaks, vibrations, poor performance, or changes in how the vehicle drives. When in doubt, bring it in for an inspection and we will give you an honest assessment.
Schedule Your Auto Repair Today
Do not wait for a small problem to become a major repair. Our ASE and ATRA certified team is ready to diagnose and fix your vehicle with honest assessments and transparent pricing.