Mon-Fri: 8:00AM-5:00PM
Diagnostics & Electrical Services IN TREASURE VALLEY, ID
Modern vehicles don’t “just act up” for no reason. A check engine light, weird warning message, or electrical glitch can have multiple causes, and guessing usually leads to wasted money.
At Sager & Sons Auto in Boise, we start with real testing, not parts swapping. Our goal is simple: find the root cause, explain it clearly, and help you make the right call for your vehicle.
What Diagnostics & Electrical Service May Include
- Check engine light diagnostics
- Electrical system testing
- Battery, starter, and charging system testing
- Sensor and control module diagnostics
- Wiring and circuit fault tracing
- Drivability and performance diagnostics
- Intermittent electrical issues (hard-to-reproduce concerns)
Signs You May Need Diagnostics or Electrical Service
- Check engine light or warning messages on the dash
- Your car won’t start, or starts intermittently
- Flickering lights or accessories not working correctly
- Hesitation, stalling, or poor performance
- Battery keeps dying
- Electrical issues that come and go
- Multiple warning lights at once
Why Proper Diagnostics Matter
One symptom can have multiple causes. Replacing parts without testing often leads to repeat repairs, unnecessary expense, and frustration.
Diagnostics aren’t an “extra.” They’re the foundation of doing the job right.
Our Diagnostic Process
- Professional-grade diagnostic equipment and factory-level scan tools
- Testing and verification before recommending repairs
- Technicians trained on modern vehicle systems
- Digital vehicle inspections with photos and notes
- Clear explanations so you understand what’s happening and why
You’ll never be pressured into repairs. Our job is to give you accurate information so you can decide what’s best for your vehicle.
Diagnostics & Electrical FAQs
How much does diagnostic testing cost?
It depends on the concern and how much testing is needed. We’ll explain the diagnostic fee up front and what it covers before we move forward.
Can you tell what’s wrong just from a code scan?
A code scan points us in a direction, but it doesn’t confirm the cause. Proper diagnostics includes testing so we don’t replace parts that aren’t actually bad.
How long does diagnostics usually take?
Some issues can be diagnosed quickly, while intermittent problems can take longer. We’ll keep you updated and never just “guess” to move things along.
Is it safe to drive with the check engine light on?
Sometimes yes, sometimes no. If the light is flashing or the vehicle is running rough, it’s best to stop driving and call us.
Do you do digital inspections during diagnostics?
Yes. We document what we find with photos and notes so you can make a confident decision.
Why Boise Drivers Choose Sager and Sons Auto
ASE-Certified Technicians — Every service is performed by trained experts.
Digital Vehicle Inspections — Photos, videos, and transparency you can trust.
Premium Parts & Fluids — We use what your vehicle actually needs, not what’s cheapest.
Family-Owned & Operated — We treat every car like it’s our own.
36-Month / 36,000-Mile Nationwide Warranty — Peace of mind, no matter where you travel.
Schedule Your Diagnosis and Testing Service in Boise, ID
Protect your investment and keep your engine performing its best schedule your Diagnosis and Testing Service today with Sager and Sons Auto.
📍 6126 W. Franklin St., Boise, ID
📞 (208) 761-9406 or
Book Online
Serving Boise Bench, Meridian, and the Treasure Valley since 2012 where family values meet professional auto care.
Oil Change Service
Your engine’s first line of defense. We use premium oil and filters suited to your make, model, and driving habits.
Transmission Fluid Exchange
Keep shifting smooth and prevent transmission failure by replacing worn fluid before it breaks down.
Coolant / Antifreeze Service
Over time, coolant loses its ability to protect your engine from heat and corrosion. We’ll flush and refill it to restore balance.
Brake Fluid Flush
Moisture contaminated brake fluid can cause corrosion and reduced stopping power. We replace it for safe, responsive braking.
Power Steering Fluid Service
Fresh steering fluid keeps your steering smooth and quiet, preventing premature pump or rack wear.
Differential & Transfer Case Service
Critical for trucks and AWD vehicles clean gear oil protects bearings and gears under heavy loads.
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