Need Subaru Diagnostics? Trust the Bay Area’s Subaru Specialists.

Warning lights, strange noises, or performance issues can be stressful. That’s why we’re here. Our Subaru diagnostics service takes the guesswork out of car repair by identifying the exact cause of the problem.  At our shop, we use Subaru-specific diagnostic tools and years of experience to pinpoint the problem quickly and accurately, saving you time and money on unnecessary repairs. Whether it’s a check engine light, a transmission issue, or an electrical glitch, we’ll get to the root of it so you can drive with confidence again. Schedule your Subaru engine repair or call 408-429-8688.

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Our Subaru Diagnostic Services

• Engine & Performance – misfires, power loss, fuel economy issues
• Transmission & Drivetrain – CVT problems, shifting issues, AWD warning lights
• Electrical System – dead battery drains, wiring faults, alternator/starter issues
• Cooling System – overheating, radiator leaks, thermostat issues
• Exhaust & Emissions – check engine light, catalytic converter, O2 sensors
• Steering & Suspension – clunks, vibrations, uneven tire wear
• HVAC & Comfort Systems – A/C not cooling, heater issues, blower problems
• Brakes & ABS – ABS light, pulsing brakes, electronic brake assist

Schedule your Subaru engine service now or call 408-429-8688.

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Common Issues We Diagnose in Subarus

• Check Engine Light On – from simple gas cap leaks to major sensor failures
• CVT Transmission Hesitation – slipping, delayed response, whining noises
• AWD Problems – torque bind, differential noises, warning lights
• Oil Consumption Issues – common in certain Subaru engines
• Cooling System Leaks – head gaskets, radiators, water pumps
• ABS/Brake Warning Lights – wheel speed sensor or ABS module failures
• Electrical Glitches – battery drains, ECU communication problems
• Rough Idle or Misfires – ignition coils, spark plugs, injectors

Get your Subaru checked today or call 408-429-8688.

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Garage One Subaru Diagnostic Process

Step-by-step to show transparency:

• Interview customer about symptoms.

• Perform a road test if needed.

• Scan with Subaru-specific diagnostic tools.

• Run visual/mechanical inspections.

• Provide a clear report & repair options.

Book your Subaru engine repair today or call 408-429-8688.

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Why San Jose Subaru Owners Trust Garage One

• Subaru Specialists – Experts dedicated exclusively to Subaru vehicles.
• Quality Parts – Genuine Subaru and premium aftermarket parts.
• Transparent Pricing – Clear, upfront quotes with no surprises.
• Convenient Booking – Easy online scheduling and fast service.

Book your Subaru engine repair today or call 408-429-8688.

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Frequently Asked Subaru Diagnostics Questions

Why do I need a diagnostic test if I already know what’s wrong?
Many symptoms can come from multiple causes — diagnostics ensure we fix the root problem, not just guess.

How long does a Subaru diagnostic take?
Most tests take 30–60 minutes, though complex electrical or intermittent issues can take longer.

My check engine light is flashing — what does that mean?
A flashing CEL means a severe misfire that can damage the catalytic converter — stop driving and call us immediately.

What warranty do you offer on engine repairs?
We back all repairs with a 3-year / 36,000-mile warranty for your peace of mind.

Have more questions? Call 408-429-8688 or schedule a consultation online!

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What Our Customers Say

“Garage 1 rebuilt my STI’s engine—it runs better than new!” – Jake M.

“Great experience with my Outback’s engine repair. Quick turnaround and very transparent.” – Linda T.

Ready to experience top-tier Subaru engine service? Book your repair today!