Find the cause before replacing parts

Auto Diagnostics in Houston, TX

Computerized diagnostics for check-engine lights, warning lights, drivability issues, electrical concerns, and hard-to-pinpoint vehicle problems.

Vehicle being serviced on a lift inside Liberty Auto Repair
Vehicle service inside the Cook Rd repair bay
Liberty Auto Repair technician working under the hood of a blue car
Diagnosis and repair in the Liberty service bay
Front service bays and Liberty Auto Repair sign on Cook Road in Houston
The Cook Rd shop and service bays

About this service

Auto Diagnostics with a diagnosis-first approach.

A trouble code is a clue, not a complete diagnosis. Good diagnostic work combines scan data with testing and the symptoms you are experiencing so repairs target the actual cause.

What we can help inspect or service

  • Check-engine light diagnosis
  • OBD-II scanning
  • ABS and warning-light checks
  • Electrical-system testing
  • Drivability diagnosis
  • Sensor and system troubleshooting

Common signs to have it checked

  • Check-engine light
  • Rough idle or misfire
  • Loss of power
  • Intermittent starting problem
  • Battery or charging warning
  • ABS, traction, or other warning lights

Common questions

Auto Diagnostics FAQ

Is a code scan the same as a diagnosis?

No. A trouble code identifies the system that detected a problem, but testing is often needed to confirm the failed component or root cause.

Can I drive with a check-engine light?

A steady light can have many causes. A flashing check-engine light often indicates an active misfire and should be treated as urgent. If the vehicle is running poorly, stop driving and call for guidance.

Can you diagnose electrical problems?

Computerized diagnostics can be part of electrical troubleshooting, but the exact process depends on the symptom and affected system.

Houston · Alief · 77072

Need auto diagnostics in Houston?

Send a quick service request with your vehicle details and symptoms, or call Liberty Auto Repair directly.

Call Liberty Auto Repair (281) 776-9004