Business Details
47 Years
experience
Your Trusted Auto Repair Shop in Walnut Creek
Since 1979, Diablo Auto Specialists has been Walnut Creek's premier destination for expert automotive repair and maintenance. As part of the Autoworx family since 2022, we continue the legacy of excellence established by Tim and Cathy Stussi, combining decades of experience with ASE-certified technicians who stay current with evolving automotive technology. Our commitment to quality is underscored by our 3-year/36,000-mile nationwide warranty, which demonstrates our confidence in every repair. We specialize in servicing both domestic and import vehicles, from routine maintenance to complex diagnostics, while maintaining a family-friendly environment that prioritizes transparency and customer education. Our team provides clear explanations of all recommended services, ensuring informed decision-making while offering same-day appointments for most requests. Located just ten minutes from the Walnut Creek BART station, we combine convenience with technical expertise across a comprehensive range of services including brake systems, climate control, transmission work, and hybrid vehicle maintenance.Our 5-star reputation reflects our dedication to resolving even the most challenging automotive issues, as evidenced by our 15-year loyal customers and consistent positive feedback regarding our honest assessments and competitive pricing. We maintain state-of-the-art equipment while adhering to environmental standards as a Certified Green service center, serving not only Walnut Creek but surrounding communities throughout the East Bay. Our digital vehicle inspection reports and complimentary Lyft service for local customers demonstrate our ongoing commitment to modern, customer-centric solutions. With multiple locations under the Autoworx umbrella, we maintain consistent quality standards while preserving the personalized service that has defined our business for over four decades.
Services
Brake Repair
Oil Changes
Transmission Service
Tire Services
AC Condenser Replacement
Engine Diagnostics
Suspension Repair
Hybrid Maintenance
Computer Diagnostics
Factory Scheduled Maintenance
Details
- Year established: 1979
Highlights and features
- We offer ASE-certified technicians with continuous technical training
- Our 3-year/36,000-mile nationwide warranty exceeds industry standards
- Same-day service available for most repair requests
- Certified Green status demonstrates environmental responsibility
- Family-owned operation maintaining 40+ year community reputation
Associations and certifications
- ASE Certified
What people say
Excellent service
Trustworthy advice
Prompt turnaround
Very friendly staff
Reasonable rates
Services
Brake Service
Our ASE-certified technicians provide comprehensive brake system maintenance including pad replacement, fluid changes, and ABS diagnostics. We inspect all components from rotors to hydraulic systems, using original equipment quality parts to ensure safety and performance. Same-day service available with 36-month warranty coverage.
AC Condenser Replacement
We specialize in automotive climate control systems, offering complete AC diagnostics and repairs including condenser replacement. Our technicians use UV dye leak detection and professional-grade equipment to restore cooling performance, backed by our nationwide warranty on parts and labor.
Oil Changes
Regular oil maintenance performed with premium-grade lubricants and filters. Our technicians follow factory specifications for intervals and fluid types while checking for potential issues during each service visit, helping prevent costly repairs.
Tire Services
Complete tire maintenance including rotation, balancing, and pressure checks. Our technicians inspect tread wear patterns to identify alignment issues early, helping maximize tire lifespan while maintaining vehicle safety and fuel efficiency.
Transmission Service
We provide both preventative maintenance and major repairs for automatic and manual transmissions. Our services include fluid exchanges, filter replacements, and complete rebuilds using quality components, with diagnostics performed by experienced technicians.
Questions
How often should I rotate my tires?
Tire rotation every 6,000 miles or alternate oil changes helps maintain even wear and extends tire lifespan.
Is timing belt replacement really necessary?
Yes, timely replacement prevents catastrophic engine damage that costs significantly more than preventive service.
What does the check engine light indicate?
It signals issues with emissions or engine performance systems that require professional diagnostics to prevent long-term damage.
What to do if my car overheats?
Turn off the engine immediately and have your vehicle towed to our shop - do not attempt to handle hot coolant.
When should I get oil changes?
Follow manufacturer recommendations, typically every 3,000-5,000 miles depending on vehicle specifications and driving conditions.
Why is engine oil milky brown?
This indicates coolant contamination requiring immediate inspection for head gasket or internal engine issues.
